/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:44:54,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:44:54,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:44:54,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:44:54,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:44:54,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:44:54,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:44:54,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:44:54,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:44:54,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:44:54,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:44:54,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:44:54,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:44:54,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:44:54,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:44:54,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:44:54,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:44:54,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:44:54,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:44:54,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:44:54,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:44:54,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:44:54,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:44:54,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:44:54,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:44:54,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:44:54,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:44:54,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:44:54,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:44:54,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:44:54,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:44:54,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:44:54,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:44:54,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:44:54,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:44:54,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:44:54,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:44:54,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:44:54,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:44:54,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:44:54,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:44:54,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 12:44:54,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:44:54,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:44:54,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:44:54,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:44:54,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:44:54,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:44:54,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:44:54,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:44:54,588 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:44:54,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:44:54,588 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:44:54,589 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:44:54,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:44:54,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:44:54,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:44:54,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:44:54,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:44:54,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:44:54,590 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:44:54,590 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:44:54,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:44:54,590 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:44:54,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:44:54,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:44:54,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:44:54,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:44:54,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:44:54,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:44:54,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:44:54,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:44:54,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:44:54,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:44:54,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:44:54,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:44:54,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:44:54,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:44:54,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:44:54,968 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:44:54,968 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:44:54,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2022-10-16 12:44:55,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924bd7820/1f3b0c411e784bf6bd47f073cf5d9146/FLAGa2fad014b [2022-10-16 12:44:56,099 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:44:56,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2022-10-16 12:44:56,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924bd7820/1f3b0c411e784bf6bd47f073cf5d9146/FLAGa2fad014b [2022-10-16 12:44:56,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924bd7820/1f3b0c411e784bf6bd47f073cf5d9146 [2022-10-16 12:44:56,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:44:56,489 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:44:56,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:44:56,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:44:56,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:44:56,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:44:56" (1/1) ... [2022-10-16 12:44:56,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d03f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:44:56, skipping insertion in model container [2022-10-16 12:44:56,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:44:56" (1/1) ... [2022-10-16 12:44:56,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:44:56,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:44:59,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2022-10-16 12:44:59,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:44:59,585 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:45:00,180 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2022-10-16 12:45:00,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:45:00,438 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:45:00,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:45:00 WrapperNode [2022-10-16 12:45:00,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:45:00,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:45:00,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:45:00,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:45:00,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:45:00" (1/1) ... [2022-10-16 12:45:00,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:45:00" (1/1) ... [2022-10-16 12:45:00,790 INFO L138 Inliner]: procedures = 389, calls = 2919, calls flagged for inlining = 156, calls inlined = 64, statements flattened = 3386 [2022-10-16 12:45:00,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:45:00,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:45:00,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:45:00,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:45:00,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:45:00" (1/1) ... [2022-10-16 12:45:00,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:45:00" (1/1) ... [2022-10-16 12:45:00,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:45:00" (1/1) ... [2022-10-16 12:45:00,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:45:00" (1/1) ... [2022-10-16 12:45:01,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:45:00" (1/1) ... [2022-10-16 12:45:01,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:45:00" (1/1) ... [2022-10-16 12:45:01,132 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:45:00" (1/1) ... [2022-10-16 12:45:01,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:45:00" (1/1) ... [2022-10-16 12:45:01,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:45:01,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:45:01,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:45:01,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:45:01,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:45:00" (1/1) ... [2022-10-16 12:45:01,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:45:01,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:45:01,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 12:45:01,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 12:45:01,302 INFO L130 BoogieDeclarations]: Found specification of procedure smi_stats_proc_open [2022-10-16 12:45:01,302 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_stats_proc_open [2022-10-16 12:45:01,302 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-10-16 12:45:01,303 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-10-16 12:45:01,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:45:01,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:45:01,303 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_poll [2022-10-16 12:45:01,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_poll [2022-10-16 12:45:01,303 INFO L130 BoogieDeclarations]: Found specification of procedure format_lan_msg [2022-10-16 12:45:01,304 INFO L138 BoogieDeclarations]: Found implementation of procedure format_lan_msg [2022-10-16 12:45:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-10-16 12:45:01,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-10-16 12:45:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure copy_event_into_recv_msg [2022-10-16 12:45:01,304 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_event_into_recv_msg [2022-10-16 12:45:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_panic_request_and_wait [2022-10-16 12:45:01,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_panic_request_and_wait [2022-10-16 12:45:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-16 12:45:01,305 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-16 12:45:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cmd_rcvrs_mutex_of_ipmi_smi [2022-10-16 12:45:01,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cmd_rcvrs_mutex_of_ipmi_smi [2022-10-16 12:45:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-10-16 12:45:01,305 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-10-16 12:45:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-10-16 12:45:01,306 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-10-16 12:45:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-16 12:45:01,306 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-16 12:45:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure intf_next_seq [2022-10-16 12:45:01,306 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_next_seq [2022-10-16 12:45:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:45:01,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cmd_rcvrs_mutex_of_ipmi_smi [2022-10-16 12:45:01,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cmd_rcvrs_mutex_of_ipmi_smi [2022-10-16 12:45:01,307 INFO L130 BoogieDeclarations]: Found specification of procedure PDE [2022-10-16 12:45:01,307 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE [2022-10-16 12:45:01,307 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-16 12:45:01,307 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-16 12:45:01,307 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 12:45:01,308 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 12:45:01,308 INFO L130 BoogieDeclarations]: Found specification of procedure i_ipmi_request [2022-10-16 12:45:01,308 INFO L138 BoogieDeclarations]: Found implementation of procedure i_ipmi_request [2022-10-16 12:45:01,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 12:45:01,308 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2022-10-16 12:45:01,309 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2022-10-16 12:45:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 12:45:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-10-16 12:45:01,309 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-10-16 12:45:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:45:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 12:45:01,310 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 12:45:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure maintenance_mode_update [2022-10-16 12:45:01,310 INFO L138 BoogieDeclarations]: Found implementation of procedure maintenance_mode_update [2022-10-16 12:45:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-16 12:45:01,310 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-16 12:45:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-10-16 12:45:01,311 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-10-16 12:45:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-10-16 12:45:01,311 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-10-16 12:45:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:45:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure smi_version_proc_open [2022-10-16 12:45:01,311 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_version_proc_open [2022-10-16 12:45:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-16 12:45:01,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-16 12:45:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:45:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure send_channel_info_cmd [2022-10-16 12:45:01,312 INFO L138 BoogieDeclarations]: Found implementation of procedure send_channel_info_cmd [2022-10-16 12:45:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:45:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-16 12:45:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 12:45:01,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 12:45:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_smi_msg [2022-10-16 12:45:01,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_smi_msg [2022-10-16 12:45:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-16 12:45:01,314 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-16 12:45:01,314 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-16 12:45:01,314 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-16 12:45:01,314 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_recv_msgs [2022-10-16 12:45:01,314 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_recv_msgs [2022-10-16 12:45:01,314 INFO L130 BoogieDeclarations]: Found specification of procedure is_lan_addr [2022-10-16 12:45:01,315 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lan_addr [2022-10-16 12:45:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-16 12:45:01,315 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-16 12:45:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2022-10-16 12:45:01,315 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2022-10-16 12:45:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:45:01,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:45:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-10-16 12:45:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-10-16 12:45:01,316 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-10-16 12:45:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 12:45:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 12:45:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure intf_find_seq [2022-10-16 12:45:01,317 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_find_seq [2022-10-16 12:45:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 12:45:01,317 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 12:45:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 12:45:01,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 12:45:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-16 12:45:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-16 12:45:01,318 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2022-10-16 12:45:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2022-10-16 12:45:01,318 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-16 12:45:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-16 12:45:01,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:45:01,318 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-16 12:45:01,319 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-16 12:45:01,319 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2022-10-16 12:45:01,319 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2022-10-16 12:45:01,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:45:01,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:45:01,319 INFO L130 BoogieDeclarations]: Found specification of procedure find_cmd_rcvr [2022-10-16 12:45:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure find_cmd_rcvr [2022-10-16 12:45:01,320 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-16 12:45:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-16 12:45:01,320 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_init_msghandler [2022-10-16 12:45:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_init_msghandler [2022-10-16 12:45:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-16 12:45:01,321 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-16 12:45:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2022-10-16 12:45:01,321 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2022-10-16 12:45:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_recv_msg [2022-10-16 12:45:01,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_recv_msg [2022-10-16 12:45:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-10-16 12:45:01,322 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-10-16 12:45:01,322 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-10-16 12:45:01,322 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-10-16 12:45:01,322 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2022-10-16 12:45:01,322 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2022-10-16 12:45:01,322 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-10-16 12:45:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-10-16 12:45:01,323 INFO L130 BoogieDeclarations]: Found specification of procedure smi_ipmb_proc_open [2022-10-16 12:45:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_ipmb_proc_open [2022-10-16 12:45:01,323 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 12:45:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 12:45:01,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:45:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 12:45:01,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 12:45:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_addr [2022-10-16 12:45:01,324 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_addr [2022-10-16 12:45:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_bcast_addr [2022-10-16 12:45:01,324 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_bcast_addr [2022-10-16 12:45:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2022-10-16 12:45:01,325 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2022-10-16 12:45:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-16 12:45:01,325 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-16 12:45:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure format_ipmb_msg [2022-10-16 12:45:01,325 INFO L138 BoogieDeclarations]: Found implementation of procedure format_ipmb_msg [2022-10-16 12:45:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-10-16 12:45:01,326 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-10-16 12:45:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2022-10-16 12:45:01,326 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2022-10-16 12:45:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-10-16 12:45:01,326 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-10-16 12:45:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-10-16 12:45:01,326 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-10-16 12:45:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-16 12:45:01,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-16 12:45:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure ipmb_checksum [2022-10-16 12:45:01,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmb_checksum [2022-10-16 12:45:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_response [2022-10-16 12:45:01,327 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_response [2022-10-16 12:45:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-10-16 12:45:01,328 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-10-16 12:45:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:45:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2022-10-16 12:45:01,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2022-10-16 12:45:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-10-16 12:45:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-10-16 12:45:01,328 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-10-16 12:45:01,980 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:45:01,987 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:45:10,277 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:45:10,308 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:45:10,309 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 12:45:10,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:45:10 BoogieIcfgContainer [2022-10-16 12:45:10,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:45:10,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:45:10,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:45:10,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:45:10,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:44:56" (1/3) ... [2022-10-16 12:45:10,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff3da5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:45:10, skipping insertion in model container [2022-10-16 12:45:10,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:45:00" (2/3) ... [2022-10-16 12:45:10,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff3da5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:45:10, skipping insertion in model container [2022-10-16 12:45:10,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:45:10" (3/3) ... [2022-10-16 12:45:10,329 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2022-10-16 12:45:10,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:45:10,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 106 error locations. [2022-10-16 12:45:10,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:45:10,517 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@138b813f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:45:10,517 INFO L358 AbstractCegarLoop]: Starting to check reachability of 106 error locations. [2022-10-16 12:45:10,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 1458 states, 973 states have (on average 1.4460431654676258) internal successors, (1407), 1128 states have internal predecessors, (1407), 304 states have call successors, (304), 74 states have call predecessors, (304), 74 states have return successors, (304), 298 states have call predecessors, (304), 304 states have call successors, (304) [2022-10-16 12:45:10,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 12:45:10,545 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:45:10,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:45:10,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [format_ipmb_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-10-16 12:45:10,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:45:10,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1559072189, now seen corresponding path program 1 times [2022-10-16 12:45:10,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:45:10,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113125280] [2022-10-16 12:45:10,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:45:10,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:45:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:11,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:45:11,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:45:11,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113125280] [2022-10-16 12:45:11,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113125280] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:45:11,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:45:11,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:45:11,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175552096] [2022-10-16 12:45:11,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:45:11,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:45:11,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:45:11,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:45:11,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:45:11,335 INFO L87 Difference]: Start difference. First operand has 1458 states, 973 states have (on average 1.4460431654676258) internal successors, (1407), 1128 states have internal predecessors, (1407), 304 states have call successors, (304), 74 states have call predecessors, (304), 74 states have return successors, (304), 298 states have call predecessors, (304), 304 states have call successors, (304) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:45:11,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:45:11,725 INFO L93 Difference]: Finished difference Result 4275 states and 6120 transitions. [2022-10-16 12:45:11,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:45:11,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 12:45:11,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:45:11,766 INFO L225 Difference]: With dead ends: 4275 [2022-10-16 12:45:11,766 INFO L226 Difference]: Without dead ends: 2736 [2022-10-16 12:45:11,791 INFO L412 NwaCegarLoop]: 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 [2022-10-16 12:45:11,796 INFO L413 NwaCegarLoop]: 2243 mSDtfsCounter, 1913 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1913 SdHoareTripleChecker+Valid, 4184 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:45:11,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1913 Valid, 4184 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:45:11,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-10-16 12:45:12,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2666. [2022-10-16 12:45:12,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2666 states, 1872 states have (on average 1.3883547008547008) internal successors, (2599), 2023 states have internal predecessors, (2599), 577 states have call successors, (577), 143 states have call predecessors, (577), 143 states have return successors, (577), 565 states have call predecessors, (577), 577 states have call successors, (577) [2022-10-16 12:45:12,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 3753 transitions. [2022-10-16 12:45:12,155 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 3753 transitions. Word has length 12 [2022-10-16 12:45:12,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:45:12,156 INFO L495 AbstractCegarLoop]: Abstraction has 2666 states and 3753 transitions. [2022-10-16 12:45:12,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:45:12,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 3753 transitions. [2022-10-16 12:45:12,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 12:45:12,159 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:45:12,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:45:12,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:45:12,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [format_ipmb_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-10-16 12:45:12,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:45:12,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1517271138, now seen corresponding path program 1 times [2022-10-16 12:45:12,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:45:12,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609752619] [2022-10-16 12:45:12,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:45:12,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:45:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:12,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:45:12,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:45:12,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609752619] [2022-10-16 12:45:12,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609752619] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:45:12,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:45:12,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:45:12,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037865355] [2022-10-16 12:45:12,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:45:12,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:45:12,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:45:12,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:45:12,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:45:12,395 INFO L87 Difference]: Start difference. First operand 2666 states and 3753 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:45:12,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:45:12,780 INFO L93 Difference]: Finished difference Result 7946 states and 11187 transitions. [2022-10-16 12:45:12,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:45:12,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 12:45:12,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:45:12,822 INFO L225 Difference]: With dead ends: 7946 [2022-10-16 12:45:12,822 INFO L226 Difference]: Without dead ends: 5283 [2022-10-16 12:45:12,839 INFO L412 NwaCegarLoop]: 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 [2022-10-16 12:45:12,842 INFO L413 NwaCegarLoop]: 2212 mSDtfsCounter, 1853 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 4095 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:45:12,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 4095 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:45:12,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5283 states. [2022-10-16 12:45:13,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5283 to 5213. [2022-10-16 12:45:13,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 3707 states have (on average 1.3862961963852172) internal successors, (5139), 3936 states have internal predecessors, (5139), 1148 states have call successors, (1148), 284 states have call predecessors, (1148), 284 states have return successors, (1148), 1124 states have call predecessors, (1148), 1148 states have call successors, (1148) [2022-10-16 12:45:13,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 7435 transitions. [2022-10-16 12:45:13,178 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 7435 transitions. Word has length 14 [2022-10-16 12:45:13,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:45:13,179 INFO L495 AbstractCegarLoop]: Abstraction has 5213 states and 7435 transitions. [2022-10-16 12:45:13,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:45:13,179 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 7435 transitions. [2022-10-16 12:45:13,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 12:45:13,180 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:45:13,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:45:13,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:45:13,181 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [format_ipmb_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-10-16 12:45:13,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:45:13,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1732941168, now seen corresponding path program 1 times [2022-10-16 12:45:13,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:45:13,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223697081] [2022-10-16 12:45:13,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:45:13,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:45:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:13,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:45:13,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:45:13,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223697081] [2022-10-16 12:45:13,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223697081] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:45:13,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:45:13,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:45:13,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341285615] [2022-10-16 12:45:13,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:45:13,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:45:13,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:45:13,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:45:13,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:45:13,333 INFO L87 Difference]: Start difference. First operand 5213 states and 7435 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:45:13,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:45:13,862 INFO L93 Difference]: Finished difference Result 15538 states and 22162 transitions. [2022-10-16 12:45:13,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:45:13,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 12:45:13,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:45:13,939 INFO L225 Difference]: With dead ends: 15538 [2022-10-16 12:45:13,939 INFO L226 Difference]: Without dead ends: 10328 [2022-10-16 12:45:13,970 INFO L412 NwaCegarLoop]: 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 [2022-10-16 12:45:13,972 INFO L413 NwaCegarLoop]: 2248 mSDtfsCounter, 1852 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 4131 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:45:13,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 4131 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:45:13,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10328 states. [2022-10-16 12:45:14,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10328 to 10258. [2022-10-16 12:45:14,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10258 states, 7338 states have (on average 1.384300899427637) internal successors, (10158), 7723 states have internal predecessors, (10158), 2284 states have call successors, (2284), 562 states have call predecessors, (2284), 562 states have return successors, (2284), 2236 states have call predecessors, (2284), 2284 states have call successors, (2284) [2022-10-16 12:45:14,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10258 states to 10258 states and 14726 transitions. [2022-10-16 12:45:14,693 INFO L78 Accepts]: Start accepts. Automaton has 10258 states and 14726 transitions. Word has length 15 [2022-10-16 12:45:14,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:45:14,694 INFO L495 AbstractCegarLoop]: Abstraction has 10258 states and 14726 transitions. [2022-10-16 12:45:14,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:45:14,694 INFO L276 IsEmpty]: Start isEmpty. Operand 10258 states and 14726 transitions. [2022-10-16 12:45:14,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 12:45:14,701 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:45:14,702 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:45:14,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:45:14,702 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [format_ipmb_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-10-16 12:45:14,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:45:14,703 INFO L85 PathProgramCache]: Analyzing trace with hash -477015482, now seen corresponding path program 1 times [2022-10-16 12:45:14,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:45:14,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849611734] [2022-10-16 12:45:14,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:45:14,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:45:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:15,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:45:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:15,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:45:15,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:45:15,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849611734] [2022-10-16 12:45:15,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849611734] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:45:15,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:45:15,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:45:15,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855710055] [2022-10-16 12:45:15,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:45:15,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:45:15,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:45:15,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:45:15,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:45:15,059 INFO L87 Difference]: Start difference. First operand 10258 states and 14726 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:45:30,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:33,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:35,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:37,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:42,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:43,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:45:43,426 INFO L93 Difference]: Finished difference Result 31844 states and 46372 transitions. [2022-10-16 12:45:43,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:45:43,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-10-16 12:45:43,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:45:43,582 INFO L225 Difference]: With dead ends: 31844 [2022-10-16 12:45:43,583 INFO L226 Difference]: Without dead ends: 21589 [2022-10-16 12:45:43,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:45:43,647 INFO L413 NwaCegarLoop]: 2274 mSDtfsCounter, 3456 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 7038 mSolverCounterSat, 2010 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3780 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 9051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2010 IncrementalHoareTripleChecker+Valid, 7038 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:45:43,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3780 Valid, 2975 Invalid, 9051 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2010 Valid, 7038 Invalid, 3 Unknown, 0 Unchecked, 26.7s Time] [2022-10-16 12:45:43,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21589 states. [2022-10-16 12:45:45,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21589 to 20319. [2022-10-16 12:45:45,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20319 states, 14585 states have (on average 1.3850531367843675) internal successors, (20201), 15290 states have internal predecessors, (20201), 4544 states have call successors, (4544), 1108 states have call predecessors, (4544), 1116 states have return successors, (4568), 4448 states have call predecessors, (4568), 4544 states have call successors, (4568) [2022-10-16 12:45:45,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20319 states to 20319 states and 29313 transitions. [2022-10-16 12:45:45,731 INFO L78 Accepts]: Start accepts. Automaton has 20319 states and 29313 transitions. Word has length 29 [2022-10-16 12:45:45,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:45:45,731 INFO L495 AbstractCegarLoop]: Abstraction has 20319 states and 29313 transitions. [2022-10-16 12:45:45,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:45:45,733 INFO L276 IsEmpty]: Start isEmpty. Operand 20319 states and 29313 transitions. [2022-10-16 12:45:45,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 12:45:45,735 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:45:45,736 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:45:45,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:45:45,736 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [format_ipmb_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-10-16 12:45:45,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:45:45,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1944446146, now seen corresponding path program 1 times [2022-10-16 12:45:45,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:45:45,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280309268] [2022-10-16 12:45:45,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:45:45,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:45:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:46,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:45:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:45:46,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:45:46,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:45:46,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280309268] [2022-10-16 12:45:46,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280309268] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:45:46,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:45:46,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:45:46,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242783920] [2022-10-16 12:45:46,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:45:46,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:45:46,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:45:46,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:45:46,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:45:46,025 INFO L87 Difference]: Start difference. First operand 20319 states and 29313 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:45:56,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:45:57,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:00,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:01,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:46:01,129 INFO L93 Difference]: Finished difference Result 52575 states and 76713 transitions. [2022-10-16 12:46:01,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:46:01,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-10-16 12:46:01,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:46:01,338 INFO L225 Difference]: With dead ends: 52575 [2022-10-16 12:46:01,338 INFO L226 Difference]: Without dead ends: 32259 [2022-10-16 12:46:01,439 INFO L412 NwaCegarLoop]: 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 [2022-10-16 12:46:01,445 INFO L413 NwaCegarLoop]: 2626 mSDtfsCounter, 2289 mSDsluCounter, 1441 mSDsCounter, 0 mSdLazyCounter, 2664 mSolverCounterSat, 726 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2518 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 3392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 726 IncrementalHoareTripleChecker+Valid, 2664 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:46:01,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2518 Valid, 4067 Invalid, 3392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [726 Valid, 2664 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2022-10-16 12:46:01,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32259 states. [2022-10-16 12:46:03,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32259 to 30397. [2022-10-16 12:46:03,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30397 states, 21851 states have (on average 1.3846048235778683) internal successors, (30255), 22872 states have internal predecessors, (30255), 6804 states have call successors, (6804), 1656 states have call predecessors, (6804), 1668 states have return successors, (6840), 6660 states have call predecessors, (6840), 6804 states have call successors, (6840) [2022-10-16 12:46:04,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30397 states to 30397 states and 43899 transitions. [2022-10-16 12:46:04,174 INFO L78 Accepts]: Start accepts. Automaton has 30397 states and 43899 transitions. Word has length 31 [2022-10-16 12:46:04,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:46:04,175 INFO L495 AbstractCegarLoop]: Abstraction has 30397 states and 43899 transitions. [2022-10-16 12:46:04,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:46:04,176 INFO L276 IsEmpty]: Start isEmpty. Operand 30397 states and 43899 transitions. [2022-10-16 12:46:04,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 12:46:04,180 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:46:04,180 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:46:04,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:46:04,181 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [format_ipmb_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-10-16 12:46:04,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:46:04,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1890511267, now seen corresponding path program 1 times [2022-10-16 12:46:04,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:46:04,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958635122] [2022-10-16 12:46:04,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:46:04,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:46:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:04,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:46:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:46:04,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:46:04,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958635122] [2022-10-16 12:46:04,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958635122] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:46:04,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:46:04,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:46:04,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326753399] [2022-10-16 12:46:04,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:46:04,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:46:04,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:46:04,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:46:04,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:46:04,456 INFO L87 Difference]: Start difference. First operand 30397 states and 43899 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:46:15,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:16,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:46:16,380 INFO L93 Difference]: Finished difference Result 78639 states and 114893 transitions. [2022-10-16 12:46:16,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:46:16,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2022-10-16 12:46:16,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:46:16,621 INFO L225 Difference]: With dead ends: 78639 [2022-10-16 12:46:16,622 INFO L226 Difference]: Without dead ends: 48245 [2022-10-16 12:46:16,946 INFO L412 NwaCegarLoop]: 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 [2022-10-16 12:46:16,949 INFO L413 NwaCegarLoop]: 2616 mSDtfsCounter, 2291 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 2665 mSolverCounterSat, 727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 4049 SdHoareTripleChecker+Invalid, 3392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 727 IncrementalHoareTripleChecker+Valid, 2665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:46:16,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 4049 Invalid, 3392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [727 Valid, 2665 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-10-16 12:46:16,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48245 states. [2022-10-16 12:46:20,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48245 to 45489. [2022-10-16 12:46:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45489 states, 32735 states have (on average 1.384175958454254) internal successors, (45311), 34230 states have internal predecessors, (45311), 10188 states have call successors, (10188), 2474 states have call predecessors, (10188), 2492 states have return successors, (10242), 9972 states have call predecessors, (10242), 10188 states have call successors, (10242) [2022-10-16 12:46:20,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45489 states to 45489 states and 65741 transitions. [2022-10-16 12:46:20,660 INFO L78 Accepts]: Start accepts. Automaton has 45489 states and 65741 transitions. Word has length 33 [2022-10-16 12:46:20,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:46:20,661 INFO L495 AbstractCegarLoop]: Abstraction has 45489 states and 65741 transitions. [2022-10-16 12:46:20,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:46:20,662 INFO L276 IsEmpty]: Start isEmpty. Operand 45489 states and 65741 transitions. [2022-10-16 12:46:20,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 12:46:20,668 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:46:20,669 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:46:20,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 12:46:20,670 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [format_ipmb_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-10-16 12:46:20,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:46:20,670 INFO L85 PathProgramCache]: Analyzing trace with hash -418483279, now seen corresponding path program 1 times [2022-10-16 12:46:20,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:46:20,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071374533] [2022-10-16 12:46:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:46:20,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:46:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:21,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:46:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:21,403 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:46:21,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:46:21,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071374533] [2022-10-16 12:46:21,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071374533] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:46:21,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:46:21,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:46:21,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969408555] [2022-10-16 12:46:21,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:46:21,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:46:21,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:46:21,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:46:21,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:46:21,407 INFO L87 Difference]: Start difference. First operand 45489 states and 65741 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:46:32,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:34,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:36,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:46:36,254 INFO L93 Difference]: Finished difference Result 117669 states and 172068 transitions. [2022-10-16 12:46:36,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:46:36,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-10-16 12:46:36,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:46:36,709 INFO L225 Difference]: With dead ends: 117669 [2022-10-16 12:46:36,709 INFO L226 Difference]: Without dead ends: 72183 [2022-10-16 12:46:36,970 INFO L412 NwaCegarLoop]: 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 [2022-10-16 12:46:36,971 INFO L413 NwaCegarLoop]: 2603 mSDtfsCounter, 2292 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 2661 mSolverCounterSat, 730 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 4029 SdHoareTripleChecker+Invalid, 3391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 730 IncrementalHoareTripleChecker+Valid, 2661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:46:36,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2521 Valid, 4029 Invalid, 3391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [730 Valid, 2661 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2022-10-16 12:46:37,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72183 states. [2022-10-16 12:46:40,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72183 to 68086. [2022-10-16 12:46:40,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68086 states, 49036 states have (on average 1.3837792642140467) internal successors, (67855), 51242 states have internal predecessors, (67855), 15255 states have call successors, (15255), 3694 states have call predecessors, (15255), 3721 states have return successors, (15336), 14931 states have call predecessors, (15336), 15255 states have call successors, (15336) [2022-10-16 12:46:41,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68086 states to 68086 states and 98446 transitions. [2022-10-16 12:46:41,455 INFO L78 Accepts]: Start accepts. Automaton has 68086 states and 98446 transitions. Word has length 34 [2022-10-16 12:46:41,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:46:41,457 INFO L495 AbstractCegarLoop]: Abstraction has 68086 states and 98446 transitions. [2022-10-16 12:46:41,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:46:41,458 INFO L276 IsEmpty]: Start isEmpty. Operand 68086 states and 98446 transitions. [2022-10-16 12:46:41,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 12:46:41,460 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:46:41,460 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:46:41,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:46:41,462 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [format_ipmb_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-10-16 12:46:41,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:46:41,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1611601545, now seen corresponding path program 1 times [2022-10-16 12:46:41,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:46:41,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504118827] [2022-10-16 12:46:41,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:46:41,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:46:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:41,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:46:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:41,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 12:46:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:41,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:46:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:41,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 12:46:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:46:41,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:46:41,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:46:41,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504118827] [2022-10-16 12:46:41,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504118827] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:46:41,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:46:41,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:46:41,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336965598] [2022-10-16 12:46:41,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:46:41,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:46:41,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:46:41,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:46:41,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:46:41,772 INFO L87 Difference]: Start difference. First operand 68086 states and 98446 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 12:46:52,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:54,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:55,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:57,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:46:59,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:00,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:00,170 INFO L93 Difference]: Finished difference Result 77511 states and 114128 transitions. [2022-10-16 12:47:00,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:47:00,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2022-10-16 12:47:00,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:00,571 INFO L225 Difference]: With dead ends: 77511 [2022-10-16 12:47:00,571 INFO L226 Difference]: Without dead ends: 77505 [2022-10-16 12:47:00,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:47:00,616 INFO L413 NwaCegarLoop]: 1977 mSDtfsCounter, 2397 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 844 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2629 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 3193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:00,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2629 Valid, 3312 Invalid, 3193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [844 Valid, 2346 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2022-10-16 12:47:00,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77505 states. [2022-10-16 12:47:04,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77505 to 73118. [2022-10-16 12:47:04,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73118 states, 52656 states have (on average 1.3832611668185961) internal successors, (72837), 55020 states have internal predecessors, (72837), 16391 states have call successors, (16391), 3968 states have call predecessors, (16391), 3997 states have return successors, (16478), 16043 states have call predecessors, (16478), 16391 states have call successors, (16478) [2022-10-16 12:47:04,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73118 states to 73118 states and 105706 transitions. [2022-10-16 12:47:04,877 INFO L78 Accepts]: Start accepts. Automaton has 73118 states and 105706 transitions. Word has length 46 [2022-10-16 12:47:04,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:04,878 INFO L495 AbstractCegarLoop]: Abstraction has 73118 states and 105706 transitions. [2022-10-16 12:47:04,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 12:47:04,878 INFO L276 IsEmpty]: Start isEmpty. Operand 73118 states and 105706 transitions. [2022-10-16 12:47:04,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 12:47:04,880 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:04,880 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:04,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 12:47:04,881 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting rcu_read_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [format_ipmb_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-10-16 12:47:04,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:04,881 INFO L85 PathProgramCache]: Analyzing trace with hash -456288314, now seen corresponding path program 1 times [2022-10-16 12:47:04,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:04,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858358740] [2022-10-16 12:47:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:04,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:05,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:05,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:47:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:05,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:47:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:05,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:47:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:05,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:47:05,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:05,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858358740] [2022-10-16 12:47:05,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858358740] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:05,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:05,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:47:05,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983412613] [2022-10-16 12:47:05,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:05,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:47:05,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:05,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:47:05,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:47:05,165 INFO L87 Difference]: Start difference. First operand 73118 states and 105706 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 12:47:09,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:09,343 INFO L93 Difference]: Finished difference Result 148070 states and 215844 transitions. [2022-10-16 12:47:09,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:47:09,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 53 [2022-10-16 12:47:09,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:09,871 INFO L225 Difference]: With dead ends: 148070 [2022-10-16 12:47:09,872 INFO L226 Difference]: Without dead ends: 74955 [2022-10-16 12:47:10,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:47:10,087 INFO L413 NwaCegarLoop]: 2001 mSDtfsCounter, 173 mSDsluCounter, 3875 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 5876 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:10,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 5876 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:47:10,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74955 states. [2022-10-16 12:47:13,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74955 to 74887. [2022-10-16 12:47:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74887 states, 54478 states have (on average 1.3843019200411175) internal successors, (75414), 56792 states have internal predecessors, (75414), 16157 states have call successors, (16157), 4121 states have call predecessors, (16157), 4178 states have return successors, (16328), 15821 states have call predecessors, (16328), 16157 states have call successors, (16328) [2022-10-16 12:47:14,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74887 states to 74887 states and 107899 transitions. [2022-10-16 12:47:14,422 INFO L78 Accepts]: Start accepts. Automaton has 74887 states and 107899 transitions. Word has length 53 [2022-10-16 12:47:14,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:14,423 INFO L495 AbstractCegarLoop]: Abstraction has 74887 states and 107899 transitions. [2022-10-16 12:47:14,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 12:47:14,423 INFO L276 IsEmpty]: Start isEmpty. Operand 74887 states and 107899 transitions. [2022-10-16 12:47:14,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 12:47:14,432 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:14,432 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:47:14,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 12:47:14,433 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [format_ipmb_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-10-16 12:47:14,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:14,433 INFO L85 PathProgramCache]: Analyzing trace with hash 511869711, now seen corresponding path program 1 times [2022-10-16 12:47:14,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:14,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685833177] [2022-10-16 12:47:14,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:14,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:14,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:47:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:14,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 12:47:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:14,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:14,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 12:47:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:14,737 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:47:14,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:14,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685833177] [2022-10-16 12:47:14,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685833177] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:47:14,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849091873] [2022-10-16 12:47:14,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:14,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:47:14,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:47:14,740 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:47:14,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 12:47:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:15,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 1750 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:47:15,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:47:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:47:15,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:47:15,739 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:47:15,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849091873] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:47:15,740 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:47:15,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-16 12:47:15,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495615301] [2022-10-16 12:47:15,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:47:15,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:47:15,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:15,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:47:15,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:47:15,742 INFO L87 Difference]: Start difference. First operand 74887 states and 107899 transitions. Second operand has 8 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-10-16 12:47:40,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:42,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:44,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:44,210 INFO L93 Difference]: Finished difference Result 156661 states and 229150 transitions. [2022-10-16 12:47:44,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 12:47:44,211 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 56 [2022-10-16 12:47:44,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:44,939 INFO L225 Difference]: With dead ends: 156661 [2022-10-16 12:47:44,939 INFO L226 Difference]: Without dead ends: 156655 [2022-10-16 12:47:44,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:47:44,998 INFO L413 NwaCegarLoop]: 2658 mSDtfsCounter, 11030 mSDsluCounter, 4571 mSDsCounter, 0 mSdLazyCounter, 8013 mSolverCounterSat, 3431 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11935 SdHoareTripleChecker+Valid, 7229 SdHoareTripleChecker+Invalid, 11446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3431 IncrementalHoareTripleChecker+Valid, 8013 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:44,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11935 Valid, 7229 Invalid, 11446 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3431 Valid, 8013 Invalid, 2 Unknown, 0 Unchecked, 20.6s Time] [2022-10-16 12:47:45,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156655 states. [2022-10-16 12:47:51,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156655 to 96748. [2022-10-16 12:47:51,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96748 states, 70366 states have (on average 1.3800130744962056) internal successors, (97106), 73317 states have internal predecessors, (97106), 20885 states have call successors, (20885), 5353 states have call predecessors, (20885), 5426 states have return successors, (21104), 20453 states have call predecessors, (21104), 20885 states have call successors, (21104) [2022-10-16 12:47:52,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96748 states to 96748 states and 139095 transitions. [2022-10-16 12:47:52,360 INFO L78 Accepts]: Start accepts. Automaton has 96748 states and 139095 transitions. Word has length 56 [2022-10-16 12:47:52,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:52,360 INFO L495 AbstractCegarLoop]: Abstraction has 96748 states and 139095 transitions. [2022-10-16 12:47:52,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-10-16 12:47:52,361 INFO L276 IsEmpty]: Start isEmpty. Operand 96748 states and 139095 transitions. [2022-10-16 12:47:52,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 12:47:52,364 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:52,365 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:47:52,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 12:47:52,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 12:47:52,580 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [format_ipmb_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-10-16 12:47:52,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:52,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1311905481, now seen corresponding path program 1 times [2022-10-16 12:47:52,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:52,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712395422] [2022-10-16 12:47:52,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:52,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:52,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:47:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:52,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 12:47:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:52,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:52,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 12:47:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:52,901 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:47:52,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:52,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712395422] [2022-10-16 12:47:52,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712395422] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:47:52,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561528085] [2022-10-16 12:47:52,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:52,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:47:52,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:47:52,904 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:47:52,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 12:47:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:53,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1751 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:47:53,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:47:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:47:53,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:47:53,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561528085] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:53,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:47:53,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-16 12:47:53,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320169657] [2022-10-16 12:47:53,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:53,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:47:53,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:53,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:47:53,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:47:53,517 INFO L87 Difference]: Start difference. First operand 96748 states and 139095 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 12:48:05,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:05,989 INFO L93 Difference]: Finished difference Result 220044 states and 316473 transitions. [2022-10-16 12:48:05,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:48:05,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2022-10-16 12:48:05,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:06,993 INFO L225 Difference]: With dead ends: 220044 [2022-10-16 12:48:06,994 INFO L226 Difference]: Without dead ends: 220038 [2022-10-16 12:48:07,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:48:07,086 INFO L413 NwaCegarLoop]: 4004 mSDtfsCounter, 3699 mSDsluCounter, 3439 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3699 SdHoareTripleChecker+Valid, 7443 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:07,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3699 Valid, 7443 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 12:48:07,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220038 states. [2022-10-16 12:48:19,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220038 to 198194. [2022-10-16 12:48:20,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198194 states, 144234 states have (on average 1.3793419027413787) internal successors, (198948), 150225 states have internal predecessors, (198948), 42785 states have call successors, (42785), 10955 states have call predecessors, (42785), 11104 states have return successors, (43232), 41897 states have call predecessors, (43232), 42785 states have call successors, (43232) [2022-10-16 12:48:21,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198194 states to 198194 states and 284965 transitions. [2022-10-16 12:48:21,707 INFO L78 Accepts]: Start accepts. Automaton has 198194 states and 284965 transitions. Word has length 57 [2022-10-16 12:48:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:21,707 INFO L495 AbstractCegarLoop]: Abstraction has 198194 states and 284965 transitions. [2022-10-16 12:48:21,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 12:48:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 198194 states and 284965 transitions. [2022-10-16 12:48:21,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 12:48:21,715 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:21,715 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:48:21,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 12:48:21,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 12:48:21,931 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting rcu_read_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [format_ipmb_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, format_ipmb_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-10-16 12:48:21,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:21,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1917301683, now seen corresponding path program 1 times [2022-10-16 12:48:21,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:21,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701893055] [2022-10-16 12:48:21,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:21,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:48:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:48:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 12:48:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:48:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 12:48:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 12:48:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,488 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 12:48:23,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:23,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701893055] [2022-10-16 12:48:23,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701893055] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:48:23,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:48:23,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:48:23,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151894919] [2022-10-16 12:48:23,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:48:23,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:48:23,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:23,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:48:23,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:48:23,490 INFO L87 Difference]: Start difference. First operand 198194 states and 284965 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5)