./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 173e3943 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-dev-173e394 [2021-11-06 15:18:24,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 15:18:24,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 15:18:24,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 15:18:24,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 15:18:24,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 15:18:24,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 15:18:24,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 15:18:24,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 15:18:24,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 15:18:24,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 15:18:24,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 15:18:24,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 15:18:24,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 15:18:24,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 15:18:24,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 15:18:24,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 15:18:24,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 15:18:24,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 15:18:24,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 15:18:24,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 15:18:24,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 15:18:24,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 15:18:24,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 15:18:24,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 15:18:24,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 15:18:24,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 15:18:24,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 15:18:24,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 15:18:24,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 15:18:24,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 15:18:24,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 15:18:24,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 15:18:24,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 15:18:24,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 15:18:24,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 15:18:24,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 15:18:24,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 15:18:24,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 15:18:24,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 15:18:24,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 15:18:24,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 15:18:24,926 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 15:18:24,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 15:18:24,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 15:18:24,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 15:18:24,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 15:18:24,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 15:18:24,930 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 15:18:24,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 15:18:24,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 15:18:24,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 15:18:24,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 15:18:24,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 15:18:24,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 15:18:24,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 15:18:24,932 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 15:18:24,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 15:18:24,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 15:18:24,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 15:18:24,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 15:18:24,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:18:24,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 15:18:24,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 15:18:24,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 15:18:24,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 15:18:24,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 15:18:24,933 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 15:18:24,933 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 15:18:24,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 15:18:24,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 15:18:24,934 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ecdcd8edc073d3f84552ba11829c64f005a40ec1d9c17a2301c9d20c3971656 [2021-11-06 15:18:25,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 15:18:25,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 15:18:25,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 15:18:25,150 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 15:18:25,151 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 15:18:25,152 INFO L432 ainManager$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 [2021-11-06 15:18:25,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b1905c3/bef7151e847b40af9403810b2df7001a/FLAGcae054f39 [2021-11-06 15:18:25,814 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 15:18:25,815 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 [2021-11-06 15:18:25,862 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b1905c3/bef7151e847b40af9403810b2df7001a/FLAGcae054f39 [2021-11-06 15:18:26,228 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48b1905c3/bef7151e847b40af9403810b2df7001a [2021-11-06 15:18:26,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 15:18:26,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 15:18:26,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 15:18:26,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 15:18:26,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 15:18:26,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:18:26" (1/1) ... [2021-11-06 15:18:26,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16bfa761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:18:26, skipping insertion in model container [2021-11-06 15:18:26,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:18:26" (1/1) ... [2021-11-06 15:18:26,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 15:18:26,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 15:18:26,738 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] [2021-11-06 15:18:26,738 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] [2021-11-06 15:18:26,739 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] [2021-11-06 15:18:26,739 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___0 * , long ) [3400] [2021-11-06 15:18:26,739 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___0 * ) [3401] [2021-11-06 15:18:26,740 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___0 * ) [3402] [2021-11-06 15:18:26,741 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] [2021-11-06 15:18:26,741 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] [2021-11-06 15:18:26,742 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] [2021-11-06 15:18:26,742 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___1 * , long ) [3436] [2021-11-06 15:18:26,742 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___1 * ) [3437] [2021-11-06 15:18:26,742 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___1 * ) [3438] [2021-11-06 15:18:26,952 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] [2021-11-06 15:18:27,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:18:27,984 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 15:18:28,057 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] [2021-11-06 15:18:28,057 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] [2021-11-06 15:18:28,057 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] [2021-11-06 15:18:28,058 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___0 * , long ) [3400] [2021-11-06 15:18:28,058 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___0 * ) [3401] [2021-11-06 15:18:28,058 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___0 * ) [3402] [2021-11-06 15:18:28,058 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] [2021-11-06 15:18:28,059 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] [2021-11-06 15:18:28,059 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] [2021-11-06 15:18:28,059 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___1 * , long ) [3436] [2021-11-06 15:18:28,059 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___1 * ) [3437] [2021-11-06 15:18:28,060 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___1 * ) [3438] [2021-11-06 15:18:28,065 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] [2021-11-06 15:18:28,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:18:28,380 INFO L208 MainTranslator]: Completed translation [2021-11-06 15:18:28,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:18:28 WrapperNode [2021-11-06 15:18:28,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 15:18:28,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 15:18:28,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 15:18:28,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 15:18:28,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:18:28" (1/1) ... [2021-11-06 15:18:28,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:18:28" (1/1) ... [2021-11-06 15:18:30,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 15:18:30,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 15:18:30,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 15:18:30,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 15:18:30,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:18:28" (1/1) ... [2021-11-06 15:18:30,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:18:28" (1/1) ... [2021-11-06 15:18:30,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:18:28" (1/1) ... [2021-11-06 15:18:30,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:18:28" (1/1) ... [2021-11-06 15:18:31,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:18:28" (1/1) ... [2021-11-06 15:18:31,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:18:28" (1/1) ... [2021-11-06 15:18:31,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:18:28" (1/1) ... [2021-11-06 15:18:32,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 15:18:32,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 15:18:32,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 15:18:32,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 15:18:32,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:18:28" (1/1) ... [2021-11-06 15:18:32,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:18:32,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:18:32,095 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) [2021-11-06 15:18:32,101 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 [2021-11-06 15:18:32,122 INFO L130 BoogieDeclarations]: Found specification of procedure bt_event [2021-11-06 15:18:32,122 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_event [2021-11-06 15:18:32,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 15:18:32,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 15:18:32,122 INFO L130 BoogieDeclarations]: Found specification of procedure reset_flags [2021-11-06 15:18:32,123 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_flags [2021-11-06 15:18:32,123 INFO L130 BoogieDeclarations]: Found specification of procedure clear_obf [2021-11-06 15:18:32,123 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_obf [2021-11-06 15:18:32,123 INFO L130 BoogieDeclarations]: Found specification of procedure smi_event_handler [2021-11-06 15:18:32,123 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_event_handler [2021-11-06 15:18:32,123 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte___0 [2021-11-06 15:18:32,123 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte___0 [2021-11-06 15:18:32,123 INFO L130 BoogieDeclarations]: Found specification of procedure read_status [2021-11-06 15:18:32,124 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status [2021-11-06 15:18:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure drain_BMC2HOST [2021-11-06 15:18:32,124 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_BMC2HOST [2021-11-06 15:18:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_status [2021-11-06 15:18:32,124 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_status [2021-11-06 15:18:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_event [2021-11-06 15:18:32,125 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_event [2021-11-06 15:18:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte [2021-11-06 15:18:32,125 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte [2021-11-06 15:18:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 15:18:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 15:18:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 15:18:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 15:18:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-06 15:18:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_one_si [2021-11-06 15:18:32,126 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_one_si [2021-11-06 15:18:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_remove [2021-11-06 15:18:32,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_remove [2021-11-06 15:18:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 15:18:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-06 15:18:32,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-06 15:18:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 15:18:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 15:18:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure read_data [2021-11-06 15:18:32,128 INFO L138 BoogieDeclarations]: Found implementation of procedure read_data [2021-11-06 15:18:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_flags [2021-11-06 15:18:32,128 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_flags [2021-11-06 15:18:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 15:18:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_data [2021-11-06 15:18:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_data [2021-11-06 15:18:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure handle_flags [2021-11-06 15:18:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_flags [2021-11-06 15:18:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 15:18:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_thread [2021-11-06 15:18:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_thread [2021-11-06 15:18:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure poll [2021-11-06 15:18:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure poll [2021-11-06 15:18:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 15:18:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 15:18:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 15:18:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 15:18:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 15:18:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 15:18:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pnp_remove [2021-11-06 15:18:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pnp_remove [2021-11-06 15:18:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure read_all_bytes [2021-11-06 15:18:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure read_all_bytes [2021-11-06 15:18:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure smic_event [2021-11-06 15:18:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_event [2021-11-06 15:18:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 15:18:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure handle_transaction_done [2021-11-06 15:18:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_transaction_done [2021-11-06 15:18:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 15:18:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 15:19:50,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 15:19:50,788 INFO L299 CfgBuilder]: Removed 7446 assume(true) statements. [2021-11-06 15:19:50,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:19:50 BoogieIcfgContainer [2021-11-06 15:19:50,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 15:19:50,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 15:19:50,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 15:19:50,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 15:19:50,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 03:18:26" (1/3) ... [2021-11-06 15:19:50,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c873bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:19:50, skipping insertion in model container [2021-11-06 15:19:50,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:18:28" (2/3) ... [2021-11-06 15:19:50,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c873bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:19:50, skipping insertion in model container [2021-11-06 15:19:50,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:19:50" (3/3) ... [2021-11-06 15:19:50,807 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i [2021-11-06 15:19:50,815 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 15:19:50,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2021-11-06 15:19:50,882 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 15:19:50,889 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 [2021-11-06 15:19:50,890 INFO L340 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2021-11-06 15:19:51,000 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) [2021-11-06 15:19:51,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-06 15:19:51,010 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:19:51,011 INFO L513 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] [2021-11-06 15:19:51,011 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)] === [2021-11-06 15:19:51,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:19:51,015 INFO L85 PathProgramCache]: Analyzing trace with hash 812857389, now seen corresponding path program 1 times [2021-11-06 15:19:51,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:19:51,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003017434] [2021-11-06 15:19:51,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:19:51,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:19:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:19:51,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:19:51,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:19:51,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003017434] [2021-11-06 15:19:51,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003017434] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:19:51,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:19:51,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 15:19:51,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641463460] [2021-11-06 15:19:51,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 15:19:51,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:19:51,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 15:19:51,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:19:51,682 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) [2021-11-06 15:19:58,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:19:58,429 INFO L93 Difference]: Finished difference Result 52337 states and 81219 transitions. [2021-11-06 15:19:58,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:19:58,430 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 [2021-11-06 15:19:58,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:19:58,634 INFO L225 Difference]: With dead ends: 52337 [2021-11-06 15:19:58,634 INFO L226 Difference]: Without dead ends: 41667 [2021-11-06 15:19:58,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:19:58,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41667 states. [2021-11-06 15:19:59,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41667 to 41318. [2021-11-06 15:20:00,002 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) [2021-11-06 15:20:00,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41318 states to 41318 states and 62896 transitions. [2021-11-06 15:20:00,308 INFO L78 Accepts]: Start accepts. Automaton has 41318 states and 62896 transitions. Word has length 43 [2021-11-06 15:20:00,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:20:00,310 INFO L470 AbstractCegarLoop]: Abstraction has 41318 states and 62896 transitions. [2021-11-06 15:20:00,310 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) [2021-11-06 15:20:00,310 INFO L276 IsEmpty]: Start isEmpty. Operand 41318 states and 62896 transitions. [2021-11-06 15:20:00,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-06 15:20:00,315 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:20:00,315 INFO L513 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] [2021-11-06 15:20:00,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 15:20:00,318 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)] === [2021-11-06 15:20:00,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:20:00,321 INFO L85 PathProgramCache]: Analyzing trace with hash -437606916, now seen corresponding path program 1 times [2021-11-06 15:20:00,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:20:00,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506801370] [2021-11-06 15:20:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:20:00,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:20:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:20:00,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:20:00,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:20:00,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506801370] [2021-11-06 15:20:00,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506801370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:20:00,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:20:00,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 15:20:00,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332427808] [2021-11-06 15:20:00,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 15:20:00,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:20:00,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 15:20:00,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:20:00,586 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) [2021-11-06 15:20:10,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:20:10,995 INFO L93 Difference]: Finished difference Result 205849 states and 320453 transitions. [2021-11-06 15:20:10,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:20:10,996 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 [2021-11-06 15:20:10,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:20:12,038 INFO L225 Difference]: With dead ends: 205849 [2021-11-06 15:20:12,038 INFO L226 Difference]: Without dead ends: 164662 [2021-11-06 15:20:12,369 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:20:12,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164662 states. [2021-11-06 15:20:15,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164662 to 164304. [2021-11-06 15:20:16,341 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) [2021-11-06 15:20:17,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164304 states to 164304 states and 254464 transitions. [2021-11-06 15:20:17,834 INFO L78 Accepts]: Start accepts. Automaton has 164304 states and 254464 transitions. Word has length 44 [2021-11-06 15:20:17,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:20:17,834 INFO L470 AbstractCegarLoop]: Abstraction has 164304 states and 254464 transitions. [2021-11-06 15:20:17,835 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) [2021-11-06 15:20:17,835 INFO L276 IsEmpty]: Start isEmpty. Operand 164304 states and 254464 transitions. [2021-11-06 15:20:17,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-06 15:20:17,836 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:20:17,836 INFO L513 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] [2021-11-06 15:20:17,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 15:20:17,836 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)] === [2021-11-06 15:20:17,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:20:17,837 INFO L85 PathProgramCache]: Analyzing trace with hash -547294564, now seen corresponding path program 1 times [2021-11-06 15:20:17,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:20:17,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526758309] [2021-11-06 15:20:17,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:20:17,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:20:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:20:18,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 15:20:18,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:20:18,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526758309] [2021-11-06 15:20:18,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526758309] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:20:18,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:20:18,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 15:20:18,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216959796] [2021-11-06 15:20:18,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 15:20:18,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:20:18,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 15:20:18,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:20:18,088 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)