./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.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-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.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 167bd9702b13f23ed6d1cf3975d4b3916f53c35f4575784f3af7225c12319bc4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 15:33:25,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 15:33:25,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 15:33:25,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 15:33:25,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 15:33:25,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 15:33:25,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 15:33:25,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 15:33:25,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 15:33:25,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 15:33:25,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 15:33:25,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 15:33:25,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 15:33:25,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 15:33:25,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 15:33:25,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 15:33:25,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 15:33:25,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 15:33:25,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 15:33:25,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 15:33:25,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 15:33:25,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 15:33:25,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 15:33:25,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 15:33:25,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 15:33:25,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 15:33:25,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 15:33:25,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 15:33:25,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 15:33:25,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 15:33:25,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 15:33:25,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 15:33:25,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 15:33:25,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 15:33:25,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 15:33:25,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 15:33:25,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 15:33:25,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 15:33:25,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 15:33:25,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 15:33:25,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 15:33:25,333 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 15:33:25,356 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 15:33:25,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 15:33:25,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 15:33:25,357 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 15:33:25,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 15:33:25,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 15:33:25,358 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 15:33:25,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 15:33:25,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 15:33:25,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 15:33:25,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 15:33:25,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 15:33:25,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 15:33:25,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 15:33:25,360 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 15:33:25,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 15:33:25,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 15:33:25,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 15:33:25,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 15:33:25,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:33:25,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 15:33:25,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 15:33:25,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 15:33:25,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 15:33:25,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 15:33:25,361 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 15:33:25,362 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 15:33:25,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 15:33:25,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 15:33:25,362 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 167bd9702b13f23ed6d1cf3975d4b3916f53c35f4575784f3af7225c12319bc4 [2021-11-06 15:33:25,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 15:33:25,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 15:33:25,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 15:33:25,567 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 15:33:25,568 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 15:33:25,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-06 15:33:25,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30c9e33ba/3274d78ddd054de780f7f98aa113ff63/FLAG746bdce30 [2021-11-06 15:33:26,222 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 15:33:26,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-06 15:33:26,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30c9e33ba/3274d78ddd054de780f7f98aa113ff63/FLAG746bdce30 [2021-11-06 15:33:26,379 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30c9e33ba/3274d78ddd054de780f7f98aa113ff63 [2021-11-06 15:33:26,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 15:33:26,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 15:33:26,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 15:33:26,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 15:33:26,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 15:33:26,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:33:26" (1/1) ... [2021-11-06 15:33:26,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7525c797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:33:26, skipping insertion in model container [2021-11-06 15:33:26,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:33:26" (1/1) ... [2021-11-06 15:33:26,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 15:33:26,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 15:33:27,823 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-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i[270369,270382] [2021-11-06 15:33:27,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:33:27,885 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 15:33:28,314 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-v0.8/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i[270369,270382] [2021-11-06 15:33:28,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 15:33:28,387 INFO L208 MainTranslator]: Completed translation [2021-11-06 15:33:28,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:33:28 WrapperNode [2021-11-06 15:33:28,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 15:33:28,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 15:33:28,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 15:33:28,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 15:33:28,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:33:28" (1/1) ... [2021-11-06 15:33:28,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:33:28" (1/1) ... [2021-11-06 15:33:29,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 15:33:29,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 15:33:29,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 15:33:29,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 15:33:29,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:33:28" (1/1) ... [2021-11-06 15:33:29,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:33:28" (1/1) ... [2021-11-06 15:33:30,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:33:28" (1/1) ... [2021-11-06 15:33:30,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:33:28" (1/1) ... [2021-11-06 15:33:31,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:33:28" (1/1) ... [2021-11-06 15:33:31,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:33:28" (1/1) ... [2021-11-06 15:33:31,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:33:28" (1/1) ... [2021-11-06 15:33:31,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 15:33:31,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 15:33:31,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 15:33:31,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 15:33:31,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:33:28" (1/1) ... [2021-11-06 15:33:31,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 15:33:31,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 15:33:31,650 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 15:33:31,681 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 15:33:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure bt_event [2021-11-06 15:33:31,838 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_event [2021-11-06 15:33:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 15:33:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 15:33:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure reset_flags [2021-11-06 15:33:31,838 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_flags [2021-11-06 15:33:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure clear_obf [2021-11-06 15:33:31,838 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_obf [2021-11-06 15:33:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure smi_event_handler [2021-11-06 15:33:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_event_handler [2021-11-06 15:33:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte___0 [2021-11-06 15:33:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte___0 [2021-11-06 15:33:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure read_status [2021-11-06 15:33:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status [2021-11-06 15:33:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure drain_BMC2HOST [2021-11-06 15:33:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_BMC2HOST [2021-11-06 15:33:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_status [2021-11-06 15:33:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_status [2021-11-06 15:33:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_event [2021-11-06 15:33:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_event [2021-11-06 15:33:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte [2021-11-06 15:33:31,839 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte [2021-11-06 15:33:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 15:33:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 15:33:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 15:33:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 15:33:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-06 15:33:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_one_si [2021-11-06 15:33:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_one_si [2021-11-06 15:33:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_remove [2021-11-06 15:33:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_remove [2021-11-06 15:33:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 15:33:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-06 15:33:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-06 15:33:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 15:33:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 15:33:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure read_data [2021-11-06 15:33:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure read_data [2021-11-06 15:33:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_flags [2021-11-06 15:33:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_flags [2021-11-06 15:33:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 15:33:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_data [2021-11-06 15:33:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_data [2021-11-06 15:33:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure handle_flags [2021-11-06 15:33:31,840 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_flags [2021-11-06 15:33:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 15:33:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_thread [2021-11-06 15:33:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_thread [2021-11-06 15:33:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure poll [2021-11-06 15:33:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure poll [2021-11-06 15:33:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 15:33:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 15:33:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 15:33:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 15:33:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 15:33:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 15:33:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pnp_remove [2021-11-06 15:33:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pnp_remove [2021-11-06 15:33:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure read_all_bytes [2021-11-06 15:33:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure read_all_bytes [2021-11-06 15:33:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure smic_event [2021-11-06 15:33:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_event [2021-11-06 15:33:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 15:33:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure handle_transaction_done [2021-11-06 15:33:31,842 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_transaction_done [2021-11-06 15:33:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 15:33:31,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 15:34:53,703 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 15:34:53,703 INFO L299 CfgBuilder]: Removed 7356 assume(true) statements. [2021-11-06 15:34:53,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:34:53 BoogieIcfgContainer [2021-11-06 15:34:53,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 15:34:53,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 15:34:53,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 15:34:53,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 15:34:53,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 03:33:26" (1/3) ... [2021-11-06 15:34:53,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349f9ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:34:53, skipping insertion in model container [2021-11-06 15:34:53,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:33:28" (2/3) ... [2021-11-06 15:34:53,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349f9ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:34:53, skipping insertion in model container [2021-11-06 15:34:53,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:34:53" (3/3) ... [2021-11-06 15:34:53,724 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-06 15:34:53,731 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 15:34:53,731 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2021-11-06 15:34:53,788 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 15:34:53,792 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 15:34:53,792 INFO L340 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2021-11-06 15:34:53,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 10501 states, 10223 states have (on average 1.5328181551403697) internal successors, (15670), 10292 states have internal predecessors, (15670), 194 states have call successors, (194), 25 states have call predecessors, (194), 25 states have return successors, (194), 190 states have call predecessors, (194), 194 states have call successors, (194) [2021-11-06 15:34:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-06 15:34:53,912 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:34:53,913 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:53,914 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 15:34:53,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:34:53,917 INFO L85 PathProgramCache]: Analyzing trace with hash 182779664, now seen corresponding path program 1 times [2021-11-06 15:34:53,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:34:53,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800410199] [2021-11-06 15:34:53,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:34:53,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:34:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:34:54,466 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 15:34:54,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:34:54,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800410199] [2021-11-06 15:34:54,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800410199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:34:54,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:34:54,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 15:34:54,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456139728] [2021-11-06 15:34:54,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 15:34:54,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:34:54,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 15:34:54,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 15:34:54,503 INFO L87 Difference]: Start difference. First operand has 10501 states, 10223 states have (on average 1.5328181551403697) internal successors, (15670), 10292 states have internal predecessors, (15670), 194 states have call successors, (194), 25 states have call predecessors, (194), 25 states have return successors, (194), 190 states have call predecessors, (194), 194 states have call successors, (194) Second operand has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 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 15:34:54,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:34:54,759 INFO L93 Difference]: Finished difference Result 20998 states and 32305 transitions. [2021-11-06 15:34:54,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 15:34:54,760 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 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 82 [2021-11-06 15:34:54,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:34:54,814 INFO L225 Difference]: With dead ends: 20998 [2021-11-06 15:34:54,814 INFO L226 Difference]: Without dead ends: 10474 [2021-11-06 15:34:54,864 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 15:34:54,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10474 states. [2021-11-06 15:34:55,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10474 to 10474. [2021-11-06 15:34:55,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10474 states, 10197 states have (on average 1.507698342649799) internal successors, (15374), 10265 states have internal predecessors, (15374), 194 states have call successors, (194), 25 states have call predecessors, (194), 25 states have return successors, (194), 190 states have call predecessors, (194), 194 states have call successors, (194) [2021-11-06 15:34:55,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10474 states to 10474 states and 15762 transitions. [2021-11-06 15:34:55,131 INFO L78 Accepts]: Start accepts. Automaton has 10474 states and 15762 transitions. Word has length 82 [2021-11-06 15:34:55,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:34:55,134 INFO L470 AbstractCegarLoop]: Abstraction has 10474 states and 15762 transitions. [2021-11-06 15:34:55,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 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 15:34:55,135 INFO L276 IsEmpty]: Start isEmpty. Operand 10474 states and 15762 transitions. [2021-11-06 15:34:55,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-06 15:34:55,141 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:34:55,142 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:55,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 15:34:55,145 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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 15:34:55,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:34:55,149 INFO L85 PathProgramCache]: Analyzing trace with hash 23053988, now seen corresponding path program 1 times [2021-11-06 15:34:55,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:34:55,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833285127] [2021-11-06 15:34:55,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:34:55,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:34:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:34:55,486 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 15:34:55,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:34:55,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833285127] [2021-11-06 15:34:55,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833285127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:34:55,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:34:55,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 15:34:55,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788104491] [2021-11-06 15:34:55,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 15:34:55,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:34:55,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 15:34:55,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:34:55,490 INFO L87 Difference]: Start difference. First operand 10474 states and 15762 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 15:35:01,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:35:01,847 INFO L93 Difference]: Finished difference Result 51954 states and 79057 transitions. [2021-11-06 15:35:01,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:35:01,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 82 [2021-11-06 15:35:01,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:35:02,101 INFO L225 Difference]: With dead ends: 51954 [2021-11-06 15:35:02,101 INFO L226 Difference]: Without dead ends: 41559 [2021-11-06 15:35:02,189 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 15:35:02,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41559 states. [2021-11-06 15:35:03,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41559 to 41210. [2021-11-06 15:35:03,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41210 states, 40279 states have (on average 1.5108865662007498) internal successors, (60857), 40378 states have internal predecessors, (60857), 773 states have call successors, (773), 100 states have call predecessors, (773), 100 states have return successors, (1211), 759 states have call predecessors, (1211), 773 states have call successors, (1211) [2021-11-06 15:35:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41210 states to 41210 states and 62841 transitions. [2021-11-06 15:35:03,395 INFO L78 Accepts]: Start accepts. Automaton has 41210 states and 62841 transitions. Word has length 82 [2021-11-06 15:35:03,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:35:03,397 INFO L470 AbstractCegarLoop]: Abstraction has 41210 states and 62841 transitions. [2021-11-06 15:35:03,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 15:35:03,397 INFO L276 IsEmpty]: Start isEmpty. Operand 41210 states and 62841 transitions. [2021-11-06 15:35:03,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-06 15:35:03,399 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:35:03,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:03,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 15:35:03,400 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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 15:35:03,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:35:03,401 INFO L85 PathProgramCache]: Analyzing trace with hash 848293157, now seen corresponding path program 1 times [2021-11-06 15:35:03,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:35:03,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046717099] [2021-11-06 15:35:03,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:35:03,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:35:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:35:03,704 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 15:35:03,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:35:03,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046717099] [2021-11-06 15:35:03,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046717099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:35:03,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:35:03,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 15:35:03,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578737248] [2021-11-06 15:35:03,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 15:35:03,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:35:03,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 15:35:03,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:35:03,707 INFO L87 Difference]: Start difference. First operand 41210 states and 62841 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 15:35:11,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 15:35:11,988 INFO L93 Difference]: Finished difference Result 205517 states and 320584 transitions. [2021-11-06 15:35:11,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 15:35:11,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 83 [2021-11-06 15:35:11,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 15:35:13,040 INFO L225 Difference]: With dead ends: 205517 [2021-11-06 15:35:13,041 INFO L226 Difference]: Without dead ends: 164386 [2021-11-06 15:35:13,659 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 15:35:13,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164386 states. [2021-11-06 15:35:17,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164386 to 164028. [2021-11-06 15:35:17,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164028 states, 160490 states have (on average 1.5112156520655493) internal successors, (242535), 160707 states have internal predecessors, (242535), 3080 states have call successors, (3080), 400 states have call predecessors, (3080), 400 states have return successors, (8902), 3032 states have call predecessors, (8902), 3080 states have call successors, (8902) [2021-11-06 15:35:18,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164028 states to 164028 states and 254517 transitions. [2021-11-06 15:35:18,499 INFO L78 Accepts]: Start accepts. Automaton has 164028 states and 254517 transitions. Word has length 83 [2021-11-06 15:35:18,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 15:35:18,500 INFO L470 AbstractCegarLoop]: Abstraction has 164028 states and 254517 transitions. [2021-11-06 15:35:18,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 15:35:18,501 INFO L276 IsEmpty]: Start isEmpty. Operand 164028 states and 254517 transitions. [2021-11-06 15:35:18,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-06 15:35:18,502 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 15:35:18,503 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:18,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 15:35:18,503 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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 15:35:18,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 15:35:18,504 INFO L85 PathProgramCache]: Analyzing trace with hash 660903763, now seen corresponding path program 1 times [2021-11-06 15:35:18,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 15:35:18,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581584830] [2021-11-06 15:35:18,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 15:35:18,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 15:35:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 15:35:19,050 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 15:35:19,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 15:35:19,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581584830] [2021-11-06 15:35:19,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581584830] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 15:35:19,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 15:35:19,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 15:35:19,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897201632] [2021-11-06 15:35:19,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 15:35:19,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 15:35:19,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 15:35:19,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 15:35:19,056 INFO L87 Difference]: Start difference. First operand 164028 states and 254517 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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)