./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 5b36d44f 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-5b36d44 [2021-11-07 13:51:06,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 13:51:06,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 13:51:06,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 13:51:06,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 13:51:06,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 13:51:06,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 13:51:06,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 13:51:06,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 13:51:06,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 13:51:06,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 13:51:06,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 13:51:06,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 13:51:06,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 13:51:06,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 13:51:06,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 13:51:06,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 13:51:06,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 13:51:06,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 13:51:06,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 13:51:06,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 13:51:06,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 13:51:06,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 13:51:06,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 13:51:06,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 13:51:06,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 13:51:06,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 13:51:06,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 13:51:06,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 13:51:06,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 13:51:06,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 13:51:06,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 13:51:06,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 13:51:06,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 13:51:06,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 13:51:06,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 13:51:06,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 13:51:06,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 13:51:06,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 13:51:06,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 13:51:06,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 13:51:06,594 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 13:51:06,615 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 13:51:06,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 13:51:06,616 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 13:51:06,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 13:51:06,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 13:51:06,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 13:51:06,617 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 13:51:06,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 13:51:06,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 13:51:06,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 13:51:06,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 13:51:06,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 13:51:06,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 13:51:06,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 13:51:06,618 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 13:51:06,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 13:51:06,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 13:51:06,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 13:51:06,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 13:51:06,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:51:06,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 13:51:06,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 13:51:06,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 13:51:06,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 13:51:06,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 13:51:06,620 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 13:51:06,620 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 13:51:06,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 13:51:06,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 13:51:06,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ecdcd8edc073d3f84552ba11829c64f005a40ec1d9c17a2301c9d20c3971656 [2021-11-07 13:51:06,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 13:51:06,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 13:51:06,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 13:51:06,802 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 13:51:06,803 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 13:51:06,803 INFO L432 ainManager$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 [2021-11-07 13:51:06,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b876ec47/d4fb8e6eb2064dc7a776b2bf74c4e95f/FLAGfdc048c2a [2021-11-07 13:51:07,472 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 13:51:07,473 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 [2021-11-07 13:51:07,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b876ec47/d4fb8e6eb2064dc7a776b2bf74c4e95f/FLAGfdc048c2a [2021-11-07 13:51:07,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b876ec47/d4fb8e6eb2064dc7a776b2bf74c4e95f [2021-11-07 13:51:07,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 13:51:07,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 13:51:07,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 13:51:07,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 13:51:07,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 13:51:07,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:07" (1/1) ... [2021-11-07 13:51:07,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d8b434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:07, skipping insertion in model container [2021-11-07 13:51:07,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:07" (1/1) ... [2021-11-07 13:51:07,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 13:51:07,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 13:51:08,284 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] [2021-11-07 13:51:08,284 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] [2021-11-07 13:51:08,285 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] [2021-11-07 13:51:08,285 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___0 * , long ) [3400] [2021-11-07 13:51:08,285 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___0 * ) [3401] [2021-11-07 13:51:08,285 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___0 * ) [3402] [2021-11-07 13:51:08,286 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] [2021-11-07 13:51:08,288 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] [2021-11-07 13:51:08,288 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] [2021-11-07 13:51:08,288 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___1 * , long ) [3436] [2021-11-07 13:51:08,289 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___1 * ) [3437] [2021-11-07 13:51:08,289 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___1 * ) [3438] [2021-11-07 13:51:08,537 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] [2021-11-07 13:51:09,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:51:09,497 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 13:51:09,539 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] [2021-11-07 13:51:09,539 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] [2021-11-07 13:51:09,539 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] [2021-11-07 13:51:09,539 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___0 * , long ) [3400] [2021-11-07 13:51:09,540 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___0 * ) [3401] [2021-11-07 13:51:09,540 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___0 * ) [3402] [2021-11-07 13:51:09,540 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] [2021-11-07 13:51:09,540 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] [2021-11-07 13:51:09,541 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] [2021-11-07 13:51:09,541 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___1 * , long ) [3436] [2021-11-07 13:51:09,541 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___1 * ) [3437] [2021-11-07 13:51:09,541 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___1 * ) [3438] [2021-11-07 13:51:09,548 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] [2021-11-07 13:51:09,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:51:09,894 INFO L208 MainTranslator]: Completed translation [2021-11-07 13:51:09,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:09 WrapperNode [2021-11-07 13:51:09,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 13:51:09,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 13:51:09,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 13:51:09,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 13:51:09,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:09" (1/1) ... [2021-11-07 13:51:09,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:09" (1/1) ... [2021-11-07 13:51:11,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 13:51:11,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 13:51:11,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 13:51:11,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 13:51:11,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:09" (1/1) ... [2021-11-07 13:51:11,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:09" (1/1) ... [2021-11-07 13:51:11,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:09" (1/1) ... [2021-11-07 13:51:11,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:09" (1/1) ... [2021-11-07 13:51:12,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:09" (1/1) ... [2021-11-07 13:51:12,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:09" (1/1) ... [2021-11-07 13:51:13,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:09" (1/1) ... [2021-11-07 13:51:13,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 13:51:13,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 13:51:13,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 13:51:13,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 13:51:13,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:09" (1/1) ... [2021-11-07 13:51:13,278 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:51:13,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:51:13,301 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) [2021-11-07 13:51:13,311 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 [2021-11-07 13:51:13,333 INFO L130 BoogieDeclarations]: Found specification of procedure bt_event [2021-11-07 13:51:13,333 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_event [2021-11-07 13:51:13,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 13:51:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 13:51:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure reset_flags [2021-11-07 13:51:13,334 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_flags [2021-11-07 13:51:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure clear_obf [2021-11-07 13:51:13,334 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_obf [2021-11-07 13:51:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure smi_event_handler [2021-11-07 13:51:13,334 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_event_handler [2021-11-07 13:51:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte___0 [2021-11-07 13:51:13,335 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte___0 [2021-11-07 13:51:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure read_status [2021-11-07 13:51:13,335 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status [2021-11-07 13:51:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure drain_BMC2HOST [2021-11-07 13:51:13,335 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_BMC2HOST [2021-11-07 13:51:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_status [2021-11-07 13:51:13,335 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_status [2021-11-07 13:51:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_event [2021-11-07 13:51:13,336 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_event [2021-11-07 13:51:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte [2021-11-07 13:51:13,336 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte [2021-11-07 13:51:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 13:51:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 13:51:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 13:51:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 13:51:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-07 13:51:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_one_si [2021-11-07 13:51:13,337 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_one_si [2021-11-07 13:51:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_remove [2021-11-07 13:51:13,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_remove [2021-11-07 13:51:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 13:51:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-07 13:51:13,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-07 13:51:13,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 13:51:13,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 13:51:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure read_data [2021-11-07 13:51:13,339 INFO L138 BoogieDeclarations]: Found implementation of procedure read_data [2021-11-07 13:51:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_flags [2021-11-07 13:51:13,339 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_flags [2021-11-07 13:51:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 13:51:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_data [2021-11-07 13:51:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_data [2021-11-07 13:51:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure handle_flags [2021-11-07 13:51:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_flags [2021-11-07 13:51:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 13:51:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_thread [2021-11-07 13:51:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_thread [2021-11-07 13:51:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure poll [2021-11-07 13:51:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure poll [2021-11-07 13:51:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 13:51:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 13:51:13,342 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 13:51:13,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 13:51:13,342 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 13:51:13,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 13:51:13,343 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pnp_remove [2021-11-07 13:51:13,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pnp_remove [2021-11-07 13:51:13,343 INFO L130 BoogieDeclarations]: Found specification of procedure read_all_bytes [2021-11-07 13:51:13,343 INFO L138 BoogieDeclarations]: Found implementation of procedure read_all_bytes [2021-11-07 13:51:13,343 INFO L130 BoogieDeclarations]: Found specification of procedure smic_event [2021-11-07 13:51:13,343 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_event [2021-11-07 13:51:13,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 13:51:13,343 INFO L130 BoogieDeclarations]: Found specification of procedure handle_transaction_done [2021-11-07 13:51:13,344 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_transaction_done [2021-11-07 13:51:13,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 13:51:13,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 13:52:26,761 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 13:52:26,762 INFO L299 CfgBuilder]: Removed 7446 assume(true) statements. [2021-11-07 13:52:26,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:52:26 BoogieIcfgContainer [2021-11-07 13:52:26,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 13:52:26,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 13:52:26,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 13:52:26,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 13:52:26,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:51:07" (1/3) ... [2021-11-07 13:52:26,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f824d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:52:26, skipping insertion in model container [2021-11-07 13:52:26,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:09" (2/3) ... [2021-11-07 13:52:26,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f824d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:52:26, skipping insertion in model container [2021-11-07 13:52:26,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:52:26" (3/3) ... [2021-11-07 13:52:26,777 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i [2021-11-07 13:52:26,781 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 13:52:26,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2021-11-07 13:52:26,845 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 13:52:26,851 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 [2021-11-07 13:52:26,851 INFO L340 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2021-11-07 13:52:26,968 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) [2021-11-07 13:52:26,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 13:52:26,979 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:52:26,980 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] [2021-11-07 13:52:26,980 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)] === [2021-11-07 13:52:26,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:52:26,984 INFO L85 PathProgramCache]: Analyzing trace with hash 812857389, now seen corresponding path program 1 times [2021-11-07 13:52:26,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:52:26,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755140698] [2021-11-07 13:52:26,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:52:26,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:52:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:52:27,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:52:27,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:52:27,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755140698] [2021-11-07 13:52:27,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755140698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:52:27,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:52:27,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 13:52:27,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001125606] [2021-11-07 13:52:27,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:52:27,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 13:52:27,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:52:27,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 13:52:27,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:52:27,729 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) [2021-11-07 13:52:29,818 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 [] [2021-11-07 13:52:34,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:52:34,856 INFO L93 Difference]: Finished difference Result 52337 states and 81219 transitions. [2021-11-07 13:52:34,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 13:52:34,859 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 [2021-11-07 13:52:34,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:52:35,091 INFO L225 Difference]: With dead ends: 52337 [2021-11-07 13:52:35,092 INFO L226 Difference]: Without dead ends: 41667 [2021-11-07 13:52:35,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 12.79ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:52:35,200 INFO L933 BasicCegarLoop]: 38436 mSDtfsCounter, 59154 mSDsluCounter, 62355 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 440 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5010.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 59154 SdHoareTripleChecker+Valid, 100791 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 147.72ms SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5518.26ms IncrementalHoareTripleChecker+Time [2021-11-07 13:52:35,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59154 Valid, 100791 Invalid, 1611 Unknown, 0 Unchecked, 147.72ms Time], IncrementalHoareTripleChecker [440 Valid, 1170 Invalid, 1 Unknown, 0 Unchecked, 5518.26ms Time] [2021-11-07 13:52:35,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41667 states. [2021-11-07 13:52:36,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41667 to 41318. [2021-11-07 13:52:36,229 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) [2021-11-07 13:52:36,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41318 states to 41318 states and 62896 transitions. [2021-11-07 13:52:36,403 INFO L78 Accepts]: Start accepts. Automaton has 41318 states and 62896 transitions. Word has length 43 [2021-11-07 13:52:36,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:52:36,404 INFO L470 AbstractCegarLoop]: Abstraction has 41318 states and 62896 transitions. [2021-11-07 13:52:36,404 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) [2021-11-07 13:52:36,405 INFO L276 IsEmpty]: Start isEmpty. Operand 41318 states and 62896 transitions. [2021-11-07 13:52:36,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 13:52:36,409 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:52:36,410 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] [2021-11-07 13:52:36,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 13:52:36,410 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)] === [2021-11-07 13:52:36,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:52:36,411 INFO L85 PathProgramCache]: Analyzing trace with hash -437606916, now seen corresponding path program 1 times [2021-11-07 13:52:36,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:52:36,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791600303] [2021-11-07 13:52:36,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:52:36,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:52:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:52:36,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:52:36,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:52:36,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791600303] [2021-11-07 13:52:36,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791600303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:52:36,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:52:36,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 13:52:36,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671780224] [2021-11-07 13:52:36,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:52:36,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 13:52:36,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:52:36,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 13:52:36,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:52:36,670 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) [2021-11-07 13:52:38,731 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 [] [2021-11-07 13:52:46,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:52:46,545 INFO L93 Difference]: Finished difference Result 205849 states and 320453 transitions. [2021-11-07 13:52:46,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 13:52:46,546 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 [2021-11-07 13:52:46,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:52:47,639 INFO L225 Difference]: With dead ends: 205849 [2021-11-07 13:52:47,639 INFO L226 Difference]: Without dead ends: 164662 [2021-11-07 13:52:48,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 9.81ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:52:48,162 INFO L933 BasicCegarLoop]: 16602 mSDtfsCounter, 62741 mSDsluCounter, 61359 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 773 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5252.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62741 SdHoareTripleChecker+Valid, 77961 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 107.73ms SdHoareTripleChecker+Time, 773 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5787.95ms IncrementalHoareTripleChecker+Time [2021-11-07 13:52:48,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62741 Valid, 77961 Invalid, 2264 Unknown, 0 Unchecked, 107.73ms Time], IncrementalHoareTripleChecker [773 Valid, 1490 Invalid, 1 Unknown, 0 Unchecked, 5787.95ms Time] [2021-11-07 13:52:48,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164662 states. [2021-11-07 13:52:51,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164662 to 164304. [2021-11-07 13:52:52,238 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) [2021-11-07 13:52:53,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164304 states to 164304 states and 254464 transitions. [2021-11-07 13:52:53,534 INFO L78 Accepts]: Start accepts. Automaton has 164304 states and 254464 transitions. Word has length 44 [2021-11-07 13:52:53,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:52:53,535 INFO L470 AbstractCegarLoop]: Abstraction has 164304 states and 254464 transitions. [2021-11-07 13:52:53,535 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) [2021-11-07 13:52:53,535 INFO L276 IsEmpty]: Start isEmpty. Operand 164304 states and 254464 transitions. [2021-11-07 13:52:53,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 13:52:53,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:52:53,536 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] [2021-11-07 13:52:53,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 13:52:53,537 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)] === [2021-11-07 13:52:53,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:52:53,537 INFO L85 PathProgramCache]: Analyzing trace with hash -547294564, now seen corresponding path program 1 times [2021-11-07 13:52:53,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:52:53,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545198487] [2021-11-07 13:52:53,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:52:53,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:52:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:52:53,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:52:53,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:52:53,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545198487] [2021-11-07 13:52:53,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545198487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:52:53,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:52:53,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 13:52:53,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077790340] [2021-11-07 13:52:53,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:52:53,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 13:52:53,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:52:53,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 13:52:53,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:52:53,785 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) [2021-11-07 13:52:55,865 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 []