./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1ecdcd8edc073d3f84552ba11829c64f005a40ec1d9c17a2301c9d20c3971656 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 17:18:26,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 17:18:26,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 17:18:26,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 17:18:26,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 17:18:26,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 17:18:26,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 17:18:26,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 17:18:26,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 17:18:26,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 17:18:26,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 17:18:26,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 17:18:26,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 17:18:26,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 17:18:26,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 17:18:26,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 17:18:26,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 17:18:26,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 17:18:26,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 17:18:26,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 17:18:26,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 17:18:26,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 17:18:26,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 17:18:26,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 17:18:26,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 17:18:26,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 17:18:26,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 17:18:26,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 17:18:26,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 17:18:26,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 17:18:26,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 17:18:26,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 17:18:26,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 17:18:26,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 17:18:26,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 17:18:26,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 17:18:26,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 17:18:26,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 17:18:26,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 17:18:26,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 17:18:26,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 17:18:26,826 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 17:18:26,849 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 17:18:26,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 17:18:26,851 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 17:18:26,851 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 17:18:26,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 17:18:26,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 17:18:26,853 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 17:18:26,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 17:18:26,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 17:18:26,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 17:18:26,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 17:18:26,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 17:18:26,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 17:18:26,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 17:18:26,855 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 17:18:26,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 17:18:26,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 17:18:26,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 17:18:26,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 17:18:26,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:18:26,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 17:18:26,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 17:18:26,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 17:18:26,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 17:18:26,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 17:18:26,856 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 17:18:26,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 17:18:26,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 17:18:26,879 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 17:18:26,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ecdcd8edc073d3f84552ba11829c64f005a40ec1d9c17a2301c9d20c3971656 [2021-11-05 17:18:27,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 17:18:27,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 17:18:27,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 17:18:27,189 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 17:18:27,189 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 17:18:27,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i [2021-11-05 17:18:27,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3635e87ca/14ec75a54f854c76ad640050ba9c4c6d/FLAG2b2355272 [2021-11-05 17:18:27,798 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 17:18:27,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i [2021-11-05 17:18:27,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3635e87ca/14ec75a54f854c76ad640050ba9c4c6d/FLAG2b2355272 [2021-11-05 17:18:27,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3635e87ca/14ec75a54f854c76ad640050ba9c4c6d [2021-11-05 17:18:27,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 17:18:27,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 17:18:27,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 17:18:27,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 17:18:27,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 17:18:27,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:18:27" (1/1) ... [2021-11-05 17:18:27,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738fe125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:18:27, skipping insertion in model container [2021-11-05 17:18:27,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:18:27" (1/1) ... [2021-11-05 17:18:27,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 17:18:28,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 17:18:28,443 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name init_data at C: (*init_data)(struct si_sm_data___0 * , struct si_sm_io * ) [3397] [2021-11-05 17:18:28,444 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name start_transaction at C: (*start_transaction)(struct si_sm_data___0 * , unsigned char * , unsigned int ) [3398] [2021-11-05 17:18:28,445 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name get_result at C: (*get_result)(struct si_sm_data___0 * , unsigned char * , unsigned int ) [3399] [2021-11-05 17:18:28,445 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___0 * , long ) [3400] [2021-11-05 17:18:28,447 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___0 * ) [3401] [2021-11-05 17:18:28,447 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___0 * ) [3402] [2021-11-05 17:18:28,448 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name init_data at C: (*init_data)(struct si_sm_data___1 * , struct si_sm_io * ) [3433] [2021-11-05 17:18:28,449 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name start_transaction at C: (*start_transaction)(struct si_sm_data___1 * , unsigned char * , unsigned int ) [3434] [2021-11-05 17:18:28,449 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name get_result at C: (*get_result)(struct si_sm_data___1 * , unsigned char * , unsigned int ) [3435] [2021-11-05 17:18:28,450 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___1 * , long ) [3436] [2021-11-05 17:18:28,450 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___1 * ) [3437] [2021-11-05 17:18:28,450 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___1 * ) [3438] [2021-11-05 17:18:28,798 WARN L228 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-validator-v0.6/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i[105316,105329] [2021-11-05 17:18:30,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:18:30,033 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 17:18:30,112 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name init_data at C: (*init_data)(struct si_sm_data___0 * , struct si_sm_io * ) [3397] [2021-11-05 17:18:30,113 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name start_transaction at C: (*start_transaction)(struct si_sm_data___0 * , unsigned char * , unsigned int ) [3398] [2021-11-05 17:18:30,113 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name get_result at C: (*get_result)(struct si_sm_data___0 * , unsigned char * , unsigned int ) [3399] [2021-11-05 17:18:30,113 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___0 * , long ) [3400] [2021-11-05 17:18:30,114 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___0 * ) [3401] [2021-11-05 17:18:30,114 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___0 * ) [3402] [2021-11-05 17:18:30,115 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name init_data at C: (*init_data)(struct si_sm_data___1 * , struct si_sm_io * ) [3433] [2021-11-05 17:18:30,115 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name start_transaction at C: (*start_transaction)(struct si_sm_data___1 * , unsigned char * , unsigned int ) [3434] [2021-11-05 17:18:30,115 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name get_result at C: (*get_result)(struct si_sm_data___1 * , unsigned char * , unsigned int ) [3435] [2021-11-05 17:18:30,116 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___1 * , long ) [3436] [2021-11-05 17:18:30,116 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___1 * ) [3437] [2021-11-05 17:18:30,116 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___1 * ) [3438] [2021-11-05 17:18:30,125 WARN L228 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-validator-v0.6/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i[105316,105329] [2021-11-05 17:18:30,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:18:30,560 INFO L208 MainTranslator]: Completed translation [2021-11-05 17:18:30,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:18:30 WrapperNode [2021-11-05 17:18:30,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 17:18:30,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 17:18:30,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 17:18:30,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 17:18:30,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:18:30" (1/1) ... [2021-11-05 17:18:30,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:18:30" (1/1) ... [2021-11-05 17:18:32,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 17:18:32,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 17:18:32,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 17:18:32,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 17:18:32,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:18:30" (1/1) ... [2021-11-05 17:18:32,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:18:30" (1/1) ... [2021-11-05 17:18:32,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:18:30" (1/1) ... [2021-11-05 17:18:32,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:18:30" (1/1) ... [2021-11-05 17:18:33,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:18:30" (1/1) ... [2021-11-05 17:18:33,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:18:30" (1/1) ... [2021-11-05 17:18:33,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:18:30" (1/1) ... [2021-11-05 17:18:33,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 17:18:33,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 17:18:33,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 17:18:33,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 17:18:33,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:18:30" (1/1) ... [2021-11-05 17:18:33,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:18:33,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:18:33,895 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) [2021-11-05 17:18:33,904 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 [2021-11-05 17:18:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure bt_event [2021-11-05 17:18:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_event [2021-11-05 17:18:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 17:18:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 17:18:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure reset_flags [2021-11-05 17:18:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_flags [2021-11-05 17:18:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure clear_obf [2021-11-05 17:18:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_obf [2021-11-05 17:18:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure smi_event_handler [2021-11-05 17:18:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_event_handler [2021-11-05 17:18:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte___0 [2021-11-05 17:18:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte___0 [2021-11-05 17:18:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure read_status [2021-11-05 17:18:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status [2021-11-05 17:18:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure drain_BMC2HOST [2021-11-05 17:18:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_BMC2HOST [2021-11-05 17:18:33,941 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_status [2021-11-05 17:18:33,941 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_status [2021-11-05 17:18:33,941 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_event [2021-11-05 17:18:33,941 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_event [2021-11-05 17:18:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte [2021-11-05 17:18:33,942 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte [2021-11-05 17:18:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 17:18:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 17:18:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 17:18:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 17:18:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-05 17:18:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_one_si [2021-11-05 17:18:33,943 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_one_si [2021-11-05 17:18:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_remove [2021-11-05 17:18:33,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_remove [2021-11-05 17:18:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 17:18:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-05 17:18:33,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-05 17:18:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 17:18:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 17:18:33,945 INFO L130 BoogieDeclarations]: Found specification of procedure read_data [2021-11-05 17:18:33,945 INFO L138 BoogieDeclarations]: Found implementation of procedure read_data [2021-11-05 17:18:33,945 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_flags [2021-11-05 17:18:33,945 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_flags [2021-11-05 17:18:33,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 17:18:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_data [2021-11-05 17:18:33,946 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_data [2021-11-05 17:18:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure handle_flags [2021-11-05 17:18:33,946 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_flags [2021-11-05 17:18:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 17:18:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_thread [2021-11-05 17:18:33,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_thread [2021-11-05 17:18:33,946 INFO L130 BoogieDeclarations]: Found specification of procedure poll [2021-11-05 17:18:33,947 INFO L138 BoogieDeclarations]: Found implementation of procedure poll [2021-11-05 17:18:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 17:18:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 17:18:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 17:18:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 17:18:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-05 17:18:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-05 17:18:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pnp_remove [2021-11-05 17:18:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pnp_remove [2021-11-05 17:18:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure read_all_bytes [2021-11-05 17:18:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure read_all_bytes [2021-11-05 17:18:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure smic_event [2021-11-05 17:18:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_event [2021-11-05 17:18:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 17:18:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure handle_transaction_done [2021-11-05 17:18:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_transaction_done [2021-11-05 17:18:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 17:18:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 17:20:00,063 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 17:20:00,064 INFO L299 CfgBuilder]: Removed 7446 assume(true) statements. [2021-11-05 17:20:00,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:20:00 BoogieIcfgContainer [2021-11-05 17:20:00,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 17:20:00,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 17:20:00,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 17:20:00,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 17:20:00,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 05:18:27" (1/3) ... [2021-11-05 17:20:00,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d596ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:20:00, skipping insertion in model container [2021-11-05 17:20:00,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:18:30" (2/3) ... [2021-11-05 17:20:00,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d596ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:20:00, skipping insertion in model container [2021-11-05 17:20:00,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:20:00" (3/3) ... [2021-11-05 17:20:00,081 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i [2021-11-05 17:20:00,085 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 17:20:00,085 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2021-11-05 17:20:00,166 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 17:20:00,171 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 17:20:00,171 INFO L340 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2021-11-05 17:20:00,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 10567 states, 10291 states have (on average 1.5317267515304636) internal successors, (15763), 10360 states have internal predecessors, (15763), 192 states have call successors, (192), 25 states have call predecessors, (192), 25 states have return successors, (192), 188 states have call predecessors, (192), 192 states have call successors, (192) [2021-11-05 17:20:00,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-05 17:20:00,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:00,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:00,322 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [smi_event_handlerErr0ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr1ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-05 17:20:00,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:00,326 INFO L85 PathProgramCache]: Analyzing trace with hash 812857389, now seen corresponding path program 1 times [2021-11-05 17:20:00,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:00,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90855590] [2021-11-05 17:20:00,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:00,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:01,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:20:01,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:01,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90855590] [2021-11-05 17:20:01,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90855590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:01,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:01,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 17:20:01,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284883190] [2021-11-05 17:20:01,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:01,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:20:01,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:01,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:20:01,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:20:01,264 INFO L87 Difference]: Start difference. First operand has 10567 states, 10291 states have (on average 1.5317267515304636) internal successors, (15763), 10360 states have internal predecessors, (15763), 192 states have call successors, (192), 25 states have call predecessors, (192), 25 states have return successors, (192), 188 states have call predecessors, (192), 192 states have call successors, (192) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-11-05 17:20:03,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:20:09,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:09,777 INFO L93 Difference]: Finished difference Result 52337 states and 81219 transitions. [2021-11-05 17:20:09,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 17:20:09,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 43 [2021-11-05 17:20:09,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:10,071 INFO L225 Difference]: With dead ends: 52337 [2021-11-05 17:20:10,072 INFO L226 Difference]: Without dead ends: 41667 [2021-11-05 17:20:10,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.32ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:20:10,209 INFO L933 BasicCegarLoop]: 38437 mSDtfsCounter, 59154 mSDsluCounter, 62355 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 440 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6289.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 59154 SdHoareTripleChecker+Valid, 100792 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 180.96ms SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6880.39ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:10,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59154 Valid, 100792 Invalid, 1611 Unknown, 0 Unchecked, 180.96ms Time], IncrementalHoareTripleChecker [440 Valid, 1170 Invalid, 1 Unknown, 0 Unchecked, 6880.39ms Time] [2021-11-05 17:20:10,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41667 states. [2021-11-05 17:20:11,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41667 to 41318. [2021-11-05 17:20:11,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41318 states, 40395 states have (on average 1.5085530387424186) internal successors, (60938), 40494 states have internal predecessors, (60938), 765 states have call successors, (765), 100 states have call predecessors, (765), 100 states have return successors, (1193), 751 states have call predecessors, (1193), 765 states have call successors, (1193) [2021-11-05 17:20:11,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41318 states to 41318 states and 62896 transitions. [2021-11-05 17:20:11,927 INFO L78 Accepts]: Start accepts. Automaton has 41318 states and 62896 transitions. Word has length 43 [2021-11-05 17:20:11,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:11,928 INFO L470 AbstractCegarLoop]: Abstraction has 41318 states and 62896 transitions. [2021-11-05 17:20:11,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-11-05 17:20:11,929 INFO L276 IsEmpty]: Start isEmpty. Operand 41318 states and 62896 transitions. [2021-11-05 17:20:11,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-05 17:20:11,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:11,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:11,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 17:20:11,932 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [smi_event_handlerErr0ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr1ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-05 17:20:11,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:11,933 INFO L85 PathProgramCache]: Analyzing trace with hash -437606916, now seen corresponding path program 1 times [2021-11-05 17:20:11,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:11,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549168026] [2021-11-05 17:20:11,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:11,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:12,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:20:12,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:12,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549168026] [2021-11-05 17:20:12,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549168026] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:12,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:12,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 17:20:12,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287468807] [2021-11-05 17:20:12,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:12,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:20:12,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:12,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:20:12,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:20:12,271 INFO L87 Difference]: Start difference. First operand 41318 states and 62896 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2021-11-05 17:20:14,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:20:22,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:22,578 INFO L93 Difference]: Finished difference Result 205849 states and 320453 transitions. [2021-11-05 17:20:22,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 17:20:22,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 44 [2021-11-05 17:20:22,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:23,802 INFO L225 Difference]: With dead ends: 205849 [2021-11-05 17:20:23,803 INFO L226 Difference]: Without dead ends: 164662 [2021-11-05 17:20:24,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 10.54ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:20:24,180 INFO L933 BasicCegarLoop]: 16602 mSDtfsCounter, 62741 mSDsluCounter, 61359 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 773 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5665.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62741 SdHoareTripleChecker+Valid, 77961 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 132.92ms SdHoareTripleChecker+Time, 773 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6359.22ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:24,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62741 Valid, 77961 Invalid, 2264 Unknown, 0 Unchecked, 132.92ms Time], IncrementalHoareTripleChecker [773 Valid, 1490 Invalid, 1 Unknown, 0 Unchecked, 6359.22ms Time] [2021-11-05 17:20:24,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164662 states. [2021-11-05 17:20:28,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164662 to 164304. [2021-11-05 17:20:28,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164304 states, 160798 states have (on average 1.5091978755954676) internal successors, (242676), 161015 states have internal predecessors, (242676), 3048 states have call successors, (3048), 400 states have call predecessors, (3048), 400 states have return successors, (8740), 3000 states have call predecessors, (8740), 3048 states have call successors, (8740) [2021-11-05 17:20:30,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164304 states to 164304 states and 254464 transitions. [2021-11-05 17:20:30,089 INFO L78 Accepts]: Start accepts. Automaton has 164304 states and 254464 transitions. Word has length 44 [2021-11-05 17:20:30,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:30,091 INFO L470 AbstractCegarLoop]: Abstraction has 164304 states and 254464 transitions. [2021-11-05 17:20:30,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2021-11-05 17:20:30,092 INFO L276 IsEmpty]: Start isEmpty. Operand 164304 states and 254464 transitions. [2021-11-05 17:20:30,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-05 17:20:30,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:30,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:30,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 17:20:30,095 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [smi_event_handlerErr0ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr1ASSERT_VIOLATIONERROR_FUNCTION, smi_event_handlerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-05 17:20:30,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:30,095 INFO L85 PathProgramCache]: Analyzing trace with hash -547294564, now seen corresponding path program 1 times [2021-11-05 17:20:30,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:30,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038053368] [2021-11-05 17:20:30,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:30,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:30,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:20:30,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:30,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038053368] [2021-11-05 17:20:30,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038053368] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:30,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:30,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 17:20:30,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544301666] [2021-11-05 17:20:30,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:30,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:20:30,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:30,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:20:30,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:20:30,385 INFO L87 Difference]: Start difference. First operand 164304 states and 254464 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2021-11-05 17:20:32,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []