/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:04:43,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:04:43,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:04:43,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:04:43,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:04:43,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:04:43,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:04:43,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:04:43,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:04:43,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:04:43,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:04:43,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:04:43,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:04:43,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:04:43,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:04:43,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:04:43,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:04:43,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:04:43,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:04:43,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:04:43,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:04:43,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:04:43,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:04:43,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:04:43,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:04:43,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:04:43,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:04:43,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:04:43,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:04:43,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:04:43,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:04:43,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:04:43,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:04:43,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:04:43,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:04:43,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:04:43,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:04:43,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:04:43,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:04:43,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:04:43,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:04:43,198 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:04:43,224 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:04:43,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:04:43,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:04:43,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:04:43,227 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:04:43,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:04:43,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:04:43,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:04:43,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:04:43,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:04:43,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:04:43,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:04:43,229 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:04:43,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:04:43,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:04:43,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:04:43,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:04:43,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:04:43,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:04:43,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:04:43,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:04:43,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:04:43,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:04:43,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:04:43,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:04:43,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:04:43,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:04:43,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:04:43,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:04:43,630 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:04:43,631 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:04:43,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2020-12-22 15:04:43,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e5d80f8/16544ad73476431a960cc3e1d4bca1f9/FLAG98e632c2d [2020-12-22 15:04:44,914 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:04:44,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2020-12-22 15:04:44,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e5d80f8/16544ad73476431a960cc3e1d4bca1f9/FLAG98e632c2d [2020-12-22 15:04:45,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e5d80f8/16544ad73476431a960cc3e1d4bca1f9 [2020-12-22 15:04:45,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:04:45,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:04:45,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:04:45,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:04:45,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:04:45,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:04:45" (1/1) ... [2020-12-22 15:04:45,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75994d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:45, skipping insertion in model container [2020-12-22 15:04:45,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:04:45" (1/1) ... [2020-12-22 15:04:45,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:04:45,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:04:48,329 WARN L226 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2020-12-22 15:04:48,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:04:48,473 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:04:49,217 WARN L226 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2020-12-22 15:04:49,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:04:49,636 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:04:49,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49 WrapperNode [2020-12-22 15:04:49,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:04:49,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:04:49,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:04:49,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:04:49,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2020-12-22 15:04:49,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2020-12-22 15:04:57,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:04:57,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:04:57,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:04:57,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:04:57,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2020-12-22 15:04:57,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2020-12-22 15:04:59,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2020-12-22 15:04:59,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2020-12-22 15:05:01,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2020-12-22 15:05:02,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2020-12-22 15:05:03,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2020-12-22 15:05:04,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:05:04,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:05:04,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:05:04,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:05:04,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:05:04,409 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2020-12-22 15:05:04,410 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2020-12-22 15:05:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:05:04,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:05:04,412 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2020-12-22 15:05:04,412 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2020-12-22 15:05:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:05:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2020-12-22 15:05:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2020-12-22 15:05:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:05:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:05:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:05:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:05:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:05:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:05:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:05:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2020-12-22 15:05:04,416 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2020-12-22 15:05:04,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:05:04,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:05:04,417 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 15:05:04,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 15:05:04,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:05:04,417 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 15:05:04,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 15:05:04,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:05:04,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:06:19,725 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:06:19,726 INFO L299 CfgBuilder]: Removed 32562 assume(true) statements. [2020-12-22 15:06:19,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:06:19 BoogieIcfgContainer [2020-12-22 15:06:19,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:06:19,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:06:19,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:06:19,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:06:19,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:04:45" (1/3) ... [2020-12-22 15:06:19,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1859ea88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:06:19, skipping insertion in model container [2020-12-22 15:06:19,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (2/3) ... [2020-12-22 15:06:19,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1859ea88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:06:19, skipping insertion in model container [2020-12-22 15:06:19,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:06:19" (3/3) ... [2020-12-22 15:06:19,758 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2020-12-22 15:06:19,765 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:06:19,776 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 24 error locations. [2020-12-22 15:06:19,796 INFO L253 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2020-12-22 15:06:19,903 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:06:19,903 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:06:19,903 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:06:19,904 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:06:19,904 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:06:19,904 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:06:19,904 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:06:19,904 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:06:20,290 INFO L276 IsEmpty]: Start isEmpty. Operand 24916 states. [2020-12-22 15:06:20,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 15:06:20,311 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:06:20,313 INFO L422 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] [2020-12-22 15:06:20,313 INFO L429 AbstractCegarLoop]: === Iteration 1 === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:06:20,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:06:20,321 INFO L82 PathProgramCache]: Analyzing trace with hash 150014610, now seen corresponding path program 1 times [2020-12-22 15:06:20,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:06:20,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916298476] [2020-12-22 15:06:20,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:06:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:06:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:06:21,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916298476] [2020-12-22 15:06:21,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:06:21,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:06:21,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075830641] [2020-12-22 15:06:21,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 15:06:21,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:06:21,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 15:06:21,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 15:06:21,213 INFO L87 Difference]: Start difference. First operand 24916 states. Second operand 2 states. [2020-12-22 15:06:22,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:06:22,342 INFO L93 Difference]: Finished difference Result 49828 states and 62133 transitions. [2020-12-22 15:06:22,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 15:06:22,344 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 35 [2020-12-22 15:06:22,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:06:22,876 INFO L225 Difference]: With dead ends: 49828 [2020-12-22 15:06:22,876 INFO L226 Difference]: Without dead ends: 24901 [2020-12-22 15:06:23,058 INFO L677 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 [2020-12-22 15:06:23,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24901 states. [2020-12-22 15:06:24,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24901 to 24901. [2020-12-22 15:06:24,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24901 states. [2020-12-22 15:06:24,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24901 states to 24901 states and 30977 transitions. [2020-12-22 15:06:24,406 INFO L78 Accepts]: Start accepts. Automaton has 24901 states and 30977 transitions. Word has length 35 [2020-12-22 15:06:24,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:06:24,407 INFO L481 AbstractCegarLoop]: Abstraction has 24901 states and 30977 transitions. [2020-12-22 15:06:24,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 15:06:24,408 INFO L276 IsEmpty]: Start isEmpty. Operand 24901 states and 30977 transitions. [2020-12-22 15:06:24,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 15:06:24,414 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:06:24,414 INFO L422 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] [2020-12-22 15:06:24,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:06:24,415 INFO L429 AbstractCegarLoop]: === Iteration 2 === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:06:24,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:06:24,416 INFO L82 PathProgramCache]: Analyzing trace with hash 290760718, now seen corresponding path program 1 times [2020-12-22 15:06:24,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:06:24,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919587137] [2020-12-22 15:06:24,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:06:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:06:24,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:06:24,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919587137] [2020-12-22 15:06:24,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:06:24,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:06:24,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85273566] [2020-12-22 15:06:24,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:06:24,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:06:24,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:06:24,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:06:24,756 INFO L87 Difference]: Start difference. First operand 24901 states and 30977 transitions. Second operand 3 states. [2020-12-22 15:06:26,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:06:26,987 INFO L93 Difference]: Finished difference Result 74295 states and 92423 transitions. [2020-12-22 15:06:26,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:06:26,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-12-22 15:06:26,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:06:27,301 INFO L225 Difference]: With dead ends: 74295 [2020-12-22 15:06:27,302 INFO L226 Difference]: Without dead ends: 49415 [2020-12-22 15:06:27,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:06:27,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49415 states. [2020-12-22 15:06:29,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49415 to 49368. [2020-12-22 15:06:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49368 states. [2020-12-22 15:06:29,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49368 states to 49368 states and 61444 transitions. [2020-12-22 15:06:29,314 INFO L78 Accepts]: Start accepts. Automaton has 49368 states and 61444 transitions. Word has length 35 [2020-12-22 15:06:29,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:06:29,314 INFO L481 AbstractCegarLoop]: Abstraction has 49368 states and 61444 transitions. [2020-12-22 15:06:29,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:06:29,315 INFO L276 IsEmpty]: Start isEmpty. Operand 49368 states and 61444 transitions. [2020-12-22 15:06:29,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-22 15:06:29,327 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:06:29,328 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:06:29,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:06:29,329 INFO L429 AbstractCegarLoop]: === Iteration 3 === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:06:29,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:06:29,332 INFO L82 PathProgramCache]: Analyzing trace with hash 2005344363, now seen corresponding path program 1 times [2020-12-22 15:06:29,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:06:29,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023898043] [2020-12-22 15:06:29,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:06:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:06:29,955 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 15:06:29,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023898043] [2020-12-22 15:06:29,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:06:29,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:06:29,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223295604] [2020-12-22 15:06:29,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:06:29,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:06:29,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:06:29,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:06:29,960 INFO L87 Difference]: Start difference. First operand 49368 states and 61444 transitions. Second operand 3 states. [2020-12-22 15:06:32,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:06:32,392 INFO L93 Difference]: Finished difference Result 76450 states and 95453 transitions. [2020-12-22 15:06:32,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:06:32,393 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-12-22 15:06:32,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:06:32,826 INFO L225 Difference]: With dead ends: 76450 [2020-12-22 15:06:32,826 INFO L226 Difference]: Without dead ends: 76402 [2020-12-22 15:06:32,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:06:32,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76402 states. [2020-12-22 15:06:35,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76402 to 74408. [2020-12-22 15:06:35,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74408 states. [2020-12-22 15:06:35,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74408 states to 74408 states and 92906 transitions. [2020-12-22 15:06:35,965 INFO L78 Accepts]: Start accepts. Automaton has 74408 states and 92906 transitions. Word has length 53 [2020-12-22 15:06:35,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:06:35,966 INFO L481 AbstractCegarLoop]: Abstraction has 74408 states and 92906 transitions. [2020-12-22 15:06:35,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:06:35,966 INFO L276 IsEmpty]: Start isEmpty. Operand 74408 states and 92906 transitions. [2020-12-22 15:06:35,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 15:06:35,993 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:06:35,993 INFO L422 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] [2020-12-22 15:06:35,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:06:35,993 INFO L429 AbstractCegarLoop]: === Iteration 4 === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:06:35,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:06:35,994 INFO L82 PathProgramCache]: Analyzing trace with hash 989856842, now seen corresponding path program 1 times [2020-12-22 15:06:35,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:06:35,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161155748] [2020-12-22 15:06:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:06:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:06:36,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:06:36,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161155748] [2020-12-22 15:06:36,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:06:36,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:06:36,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369599317] [2020-12-22 15:06:36,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:06:36,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:06:36,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:06:36,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:06:36,268 INFO L87 Difference]: Start difference. First operand 74408 states and 92906 transitions. Second operand 4 states. [2020-12-22 15:06:43,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:06:43,492 INFO L93 Difference]: Finished difference Result 296076 states and 368747 transitions. [2020-12-22 15:06:43,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:06:43,493 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2020-12-22 15:06:43,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:06:44,999 INFO L225 Difference]: With dead ends: 296076 [2020-12-22 15:06:45,000 INFO L226 Difference]: Without dead ends: 221689 [2020-12-22 15:06:45,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:06:45,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221689 states. [2020-12-22 15:06:50,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221689 to 147727. [2020-12-22 15:06:50,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147727 states. [2020-12-22 15:06:51,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147727 states to 147727 states and 184362 transitions. [2020-12-22 15:06:51,255 INFO L78 Accepts]: Start accepts. Automaton has 147727 states and 184362 transitions. Word has length 65 [2020-12-22 15:06:51,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:06:51,255 INFO L481 AbstractCegarLoop]: Abstraction has 147727 states and 184362 transitions. [2020-12-22 15:06:51,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:06:51,255 INFO L276 IsEmpty]: Start isEmpty. Operand 147727 states and 184362 transitions. [2020-12-22 15:06:51,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 15:06:51,305 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:06:51,306 INFO L422 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] [2020-12-22 15:06:51,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:06:51,306 INFO L429 AbstractCegarLoop]: === Iteration 5 === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:06:51,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:06:51,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1886308727, now seen corresponding path program 1 times [2020-12-22 15:06:51,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:06:51,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593192873] [2020-12-22 15:06:51,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:06:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:06:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:06:51,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593192873] [2020-12-22 15:06:51,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:06:51,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:06:51,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269608587] [2020-12-22 15:06:51,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:06:51,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:06:51,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:06:51,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:06:51,586 INFO L87 Difference]: Start difference. First operand 147727 states and 184362 transitions. Second operand 4 states. [2020-12-22 15:07:05,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:07:05,568 INFO L93 Difference]: Finished difference Result 588931 states and 733179 transitions. [2020-12-22 15:07:05,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:07:05,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2020-12-22 15:07:05,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:07:07,403 INFO L225 Difference]: With dead ends: 588931 [2020-12-22 15:07:07,403 INFO L226 Difference]: Without dead ends: 441225 [2020-12-22 15:07:08,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:07:08,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441225 states. [2020-12-22 15:07:17,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441225 to 293535. [2020-12-22 15:07:17,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293535 states. [2020-12-22 15:07:18,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293535 states to 293535 states and 366156 transitions. [2020-12-22 15:07:18,851 INFO L78 Accepts]: Start accepts. Automaton has 293535 states and 366156 transitions. Word has length 66 [2020-12-22 15:07:18,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:07:18,851 INFO L481 AbstractCegarLoop]: Abstraction has 293535 states and 366156 transitions. [2020-12-22 15:07:18,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:07:18,852 INFO L276 IsEmpty]: Start isEmpty. Operand 293535 states and 366156 transitions. [2020-12-22 15:07:18,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 15:07:18,917 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:07:18,917 INFO L422 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] [2020-12-22 15:07:18,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:07:18,917 INFO L429 AbstractCegarLoop]: === Iteration 6 === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:07:18,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:07:18,918 INFO L82 PathProgramCache]: Analyzing trace with hash -331194845, now seen corresponding path program 1 times [2020-12-22 15:07:18,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:07:18,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276324193] [2020-12-22 15:07:18,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:07:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:07:19,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:07:19,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276324193] [2020-12-22 15:07:19,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:07:19,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:07:19,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357830130] [2020-12-22 15:07:19,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:07:19,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:07:19,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:07:19,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:07:19,203 INFO L87 Difference]: Start difference. First operand 293535 states and 366156 transitions. Second operand 4 states.