/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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:27:31,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:27:31,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:27:31,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:27:31,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:27:31,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:27:31,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:27:31,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:27:31,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:27:31,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:27:31,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:27:31,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:27:31,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:27:31,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:27:31,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:27:31,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:27:31,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:27:31,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:27:31,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:27:31,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:27:31,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:27:31,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:27:31,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:27:31,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:27:31,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:27:31,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:27:31,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:27:31,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:27:31,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:27:31,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:27:31,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:27:31,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:27:31,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:27:31,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:27:31,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:27:31,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:27:31,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:27:31,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:27:31,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:27:31,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:27:31,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:27:31,462 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:27:31,521 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:27:31,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:27:31,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:27:31,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:27:31,527 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:27:31,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:27:31,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:27:31,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:27:31,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:27:31,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:27:31,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:27:31,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:27:31,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:27:31,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:27:31,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:27:31,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:27:31,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:27:31,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:27:31,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:27:31,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:27:31,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:27:31,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:27:31,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:27:31,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:27:31,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:27:31,535 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:27:32,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:27:32,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:27:32,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:27:32,057 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:27:32,058 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:27:32,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2020-12-22 15:27:32,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7e53f89/0178e3387f8c4c58b6466011565cc184/FLAG11de2486f [2020-12-22 15:27:33,415 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:27:33,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2020-12-22 15:27:33,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7e53f89/0178e3387f8c4c58b6466011565cc184/FLAG11de2486f [2020-12-22 15:27:33,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7e53f89/0178e3387f8c4c58b6466011565cc184 [2020-12-22 15:27:33,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:27:33,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:27:33,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:27:33,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:27:33,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:27:33,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:27:33" (1/1) ... [2020-12-22 15:27:33,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58bfe9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:27:33, skipping insertion in model container [2020-12-22 15:27:33,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:27:33" (1/1) ... [2020-12-22 15:27:33,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:27:33,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:27:39,297 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[492962,492975] [2020-12-22 15:27:39,301 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[493107,493120] [2020-12-22 15:27:39,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:27:39,392 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:27:40,105 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[492962,492975] [2020-12-22 15:27:40,105 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[493107,493120] [2020-12-22 15:27:40,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:27:41,415 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:27:41,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:27:41 WrapperNode [2020-12-22 15:27:41,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:27:41,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:27:41,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:27:41,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:27:41,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:27:41" (1/1) ... [2020-12-22 15:27:41,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:27:41" (1/1) ... [2020-12-22 15:27:45,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:27:45,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:27:45,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:27:45,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:27:45,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:27:41" (1/1) ... [2020-12-22 15:27:45,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:27:41" (1/1) ... [2020-12-22 15:27:45,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:27:41" (1/1) ... [2020-12-22 15:27:45,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:27:41" (1/1) ... [2020-12-22 15:27:47,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:27:41" (1/1) ... [2020-12-22 15:27:48,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:27:41" (1/1) ... [2020-12-22 15:27:48,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:27:41" (1/1) ... [2020-12-22 15:27:49,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:27:49,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:27:49,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:27:49,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:27:49,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:27:41" (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 15:27:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:27:49,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:27:49,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:27:49,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:27:49,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:27:49,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:27:49,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:27:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:27:49,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:27:49,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:27:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:27:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:27:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:27:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:27:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:29:36,322 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 15:29:36,323 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 15:29:36,323 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2020-12-22 15:29:36,323 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2020-12-22 15:29:36,323 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2020-12-22 15:29:36,323 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2020-12-22 15:29:36,324 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2020-12-22 15:29:36,324 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2020-12-22 15:29:36,324 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2020-12-22 15:29:36,324 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#9: ldv_switch_2_#res := 0; [2020-12-22 15:29:36,324 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 15:29:36,325 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 15:29:36,326 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2020-12-22 15:29:36,330 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 15:29:36,335 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#10: ldv_switch_2_#res := 0; [2020-12-22 15:29:36,336 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 15:29:36,418 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:29:36,419 INFO L299 CfgBuilder]: Removed 18843 assume(true) statements. [2020-12-22 15:29:36,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:29:36 BoogieIcfgContainer [2020-12-22 15:29:36,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:29:36,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:29:36,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:29:36,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:29:36,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:27:33" (1/3) ... [2020-12-22 15:29:36,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45838a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:29:36, skipping insertion in model container [2020-12-22 15:29:36,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:27:41" (2/3) ... [2020-12-22 15:29:36,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45838a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:29:36, skipping insertion in model container [2020-12-22 15:29:36,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:29:36" (3/3) ... [2020-12-22 15:29:36,445 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2020-12-22 15:29:36,452 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:29:36,462 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2020-12-22 15:29:36,483 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-12-22 15:29:36,565 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:29:36,565 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:29:36,565 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:29:36,565 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:29:36,565 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:29:36,566 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:29:36,566 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:29:36,566 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:29:36,769 INFO L276 IsEmpty]: Start isEmpty. Operand 16771 states. [2020-12-22 15:29:36,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 15:29:36,806 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:29:36,807 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, 1, 1, 1, 1] [2020-12-22 15:29:36,807 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:29:36,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:29:36,814 INFO L82 PathProgramCache]: Analyzing trace with hash -258267135, now seen corresponding path program 1 times [2020-12-22 15:29:36,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:29:36,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230899947] [2020-12-22 15:29:36,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:29:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:29:38,470 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 15:29:38,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230899947] [2020-12-22 15:29:38,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:29:38,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:29:38,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432530587] [2020-12-22 15:29:38,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:29:38,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:29:38,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:29:38,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:29:38,497 INFO L87 Difference]: Start difference. First operand 16771 states. Second operand 3 states. [2020-12-22 15:29:42,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:29:42,190 INFO L93 Difference]: Finished difference Result 39846 states and 53391 transitions. [2020-12-22 15:29:42,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:29:42,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-12-22 15:29:42,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:29:42,356 INFO L225 Difference]: With dead ends: 39846 [2020-12-22 15:29:42,356 INFO L226 Difference]: Without dead ends: 22272 [2020-12-22 15:29:42,413 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 15:29:42,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22272 states. [2020-12-22 15:29:43,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22272 to 22264. [2020-12-22 15:29:43,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22264 states. [2020-12-22 15:29:43,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22264 states to 22264 states and 29185 transitions. [2020-12-22 15:29:43,423 INFO L78 Accepts]: Start accepts. Automaton has 22264 states and 29185 transitions. Word has length 71 [2020-12-22 15:29:43,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:29:43,424 INFO L481 AbstractCegarLoop]: Abstraction has 22264 states and 29185 transitions. [2020-12-22 15:29:43,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:29:43,425 INFO L276 IsEmpty]: Start isEmpty. Operand 22264 states and 29185 transitions. [2020-12-22 15:29:43,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 15:29:43,441 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:29:43,441 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, 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 15:29:43,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:29:43,442 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:29:43,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:29:43,443 INFO L82 PathProgramCache]: Analyzing trace with hash 12432041, now seen corresponding path program 1 times [2020-12-22 15:29:43,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:29:43,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831272253] [2020-12-22 15:29:43,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:29:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:29:44,453 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 15:29:44,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831272253] [2020-12-22 15:29:44,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:29:44,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:29:44,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246278957] [2020-12-22 15:29:44,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:29:44,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:29:44,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:29:44,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:29:44,458 INFO L87 Difference]: Start difference. First operand 22264 states and 29185 transitions. Second operand 3 states. [2020-12-22 15:29:48,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:29:48,056 INFO L93 Difference]: Finished difference Result 65208 states and 85542 transitions. [2020-12-22 15:29:48,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:29:48,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-22 15:29:48,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:29:48,247 INFO L225 Difference]: With dead ends: 65208 [2020-12-22 15:29:48,247 INFO L226 Difference]: Without dead ends: 43052 [2020-12-22 15:29:48,320 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 15:29:48,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43052 states. [2020-12-22 15:29:49,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43052 to 43008. [2020-12-22 15:29:49,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43008 states. [2020-12-22 15:29:49,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43008 states to 43008 states and 56432 transitions. [2020-12-22 15:29:49,936 INFO L78 Accepts]: Start accepts. Automaton has 43008 states and 56432 transitions. Word has length 90 [2020-12-22 15:29:49,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:29:49,937 INFO L481 AbstractCegarLoop]: Abstraction has 43008 states and 56432 transitions. [2020-12-22 15:29:49,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:29:49,938 INFO L276 IsEmpty]: Start isEmpty. Operand 43008 states and 56432 transitions. [2020-12-22 15:29:49,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 15:29:49,953 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:29:49,953 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, 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 15:29:49,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:29:49,954 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:29:49,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:29:49,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1581684744, now seen corresponding path program 1 times [2020-12-22 15:29:49,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:29:49,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697676690] [2020-12-22 15:29:49,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:29:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:29:50,731 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 15:29:50,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697676690] [2020-12-22 15:29:50,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:29:50,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:29:50,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809717425] [2020-12-22 15:29:50,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:29:50,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:29:50,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:29:50,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:29:50,734 INFO L87 Difference]: Start difference. First operand 43008 states and 56432 transitions. Second operand 3 states. [2020-12-22 15:29:55,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:29:55,358 INFO L93 Difference]: Finished difference Result 122782 states and 161341 transitions. [2020-12-22 15:29:55,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:29:55,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-22 15:29:55,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:29:55,603 INFO L225 Difference]: With dead ends: 122782 [2020-12-22 15:29:55,604 INFO L226 Difference]: Without dead ends: 79882 [2020-12-22 15:29:55,738 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 15:29:55,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79882 states. [2020-12-22 15:29:58,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79882 to 79348. [2020-12-22 15:29:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79348 states. [2020-12-22 15:29:58,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79348 states to 79348 states and 104452 transitions. [2020-12-22 15:29:58,355 INFO L78 Accepts]: Start accepts. Automaton has 79348 states and 104452 transitions. Word has length 90 [2020-12-22 15:29:58,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:29:58,356 INFO L481 AbstractCegarLoop]: Abstraction has 79348 states and 104452 transitions. [2020-12-22 15:29:58,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:29:58,356 INFO L276 IsEmpty]: Start isEmpty. Operand 79348 states and 104452 transitions. [2020-12-22 15:29:58,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-22 15:29:58,394 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:29:58,399 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:58,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:29:58,400 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:29:58,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:29:58,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1495129010, now seen corresponding path program 1 times [2020-12-22 15:29:58,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:29:58,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322705579] [2020-12-22 15:29:58,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:29:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:29:59,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:29:59,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322705579] [2020-12-22 15:29:59,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:29:59,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:29:59,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302473977] [2020-12-22 15:29:59,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:29:59,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:29:59,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:29:59,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:29:59,483 INFO L87 Difference]: Start difference. First operand 79348 states and 104452 transitions. Second operand 3 states. [2020-12-22 15:30:05,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:30:05,017 INFO L93 Difference]: Finished difference Result 179790 states and 236665 transitions. [2020-12-22 15:30:05,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:30:05,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-12-22 15:30:05,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:30:05,422 INFO L225 Difference]: With dead ends: 179790 [2020-12-22 15:30:05,422 INFO L226 Difference]: Without dead ends: 100550 [2020-12-22 15:30:05,650 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 15:30:05,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100550 states. [2020-12-22 15:30:08,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100550 to 100530. [2020-12-22 15:30:08,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100530 states. [2020-12-22 15:30:08,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100530 states to 100530 states and 132256 transitions. [2020-12-22 15:30:08,410 INFO L78 Accepts]: Start accepts. Automaton has 100530 states and 132256 transitions. Word has length 103 [2020-12-22 15:30:08,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:30:08,411 INFO L481 AbstractCegarLoop]: Abstraction has 100530 states and 132256 transitions. [2020-12-22 15:30:08,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:30:08,411 INFO L276 IsEmpty]: Start isEmpty. Operand 100530 states and 132256 transitions. [2020-12-22 15:30:08,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-22 15:30:08,432 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:30:08,433 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:08,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:30:08,433 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:30:08,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:30:08,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1730380671, now seen corresponding path program 1 times [2020-12-22 15:30:08,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:30:08,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024567424] [2020-12-22 15:30:08,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:30:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:30:09,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:30:09,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024567424] [2020-12-22 15:30:09,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:30:09,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:30:09,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714104192] [2020-12-22 15:30:09,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:30:09,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:30:09,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:30:09,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:30:09,133 INFO L87 Difference]: Start difference. First operand 100530 states and 132256 transitions. Second operand 3 states. [2020-12-22 15:30:13,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:30:13,896 INFO L93 Difference]: Finished difference Result 210809 states and 277345 transitions. [2020-12-22 15:30:13,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:30:13,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-12-22 15:30:13,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:30:14,191 INFO L225 Difference]: With dead ends: 210809 [2020-12-22 15:30:14,192 INFO L226 Difference]: Without dead ends: 110387 [2020-12-22 15:30:14,487 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 15:30:14,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110387 states. [2020-12-22 15:30:16,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110387 to 110385. [2020-12-22 15:30:16,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110385 states. [2020-12-22 15:30:17,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110385 states to 110385 states and 145201 transitions. [2020-12-22 15:30:17,354 INFO L78 Accepts]: Start accepts. Automaton has 110385 states and 145201 transitions. Word has length 106 [2020-12-22 15:30:17,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:30:17,354 INFO L481 AbstractCegarLoop]: Abstraction has 110385 states and 145201 transitions. [2020-12-22 15:30:17,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:30:17,355 INFO L276 IsEmpty]: Start isEmpty. Operand 110385 states and 145201 transitions. [2020-12-22 15:30:17,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-12-22 15:30:17,398 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:30:17,398 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:17,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:30:17,399 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:30:17,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:30:17,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1148524733, now seen corresponding path program 1 times [2020-12-22 15:30:17,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:30:17,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93087981] [2020-12-22 15:30:17,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:30:17,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:30:18,084 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:30:18,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93087981] [2020-12-22 15:30:18,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:30:18,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:30:18,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007375547] [2020-12-22 15:30:18,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:30:18,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:30:18,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:30:18,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:30:18,098 INFO L87 Difference]: Start difference. First operand 110385 states and 145201 transitions. Second operand 3 states. [2020-12-22 15:30:24,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:30:24,372 INFO L93 Difference]: Finished difference Result 316694 states and 416836 transitions. [2020-12-22 15:30:24,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:30:24,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-12-22 15:30:24,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:30:25,007 INFO L225 Difference]: With dead ends: 316694 [2020-12-22 15:30:25,008 INFO L226 Difference]: Without dead ends: 206417 [2020-12-22 15:30:25,260 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 15:30:25,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206417 states. [2020-12-22 15:30:30,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206417 to 206339. [2020-12-22 15:30:30,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206339 states. [2020-12-22 15:30:30,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206339 states to 206339 states and 271617 transitions. [2020-12-22 15:30:30,823 INFO L78 Accepts]: Start accepts. Automaton has 206339 states and 271617 transitions. Word has length 123 [2020-12-22 15:30:30,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:30:30,824 INFO L481 AbstractCegarLoop]: Abstraction has 206339 states and 271617 transitions. [2020-12-22 15:30:30,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:30:30,824 INFO L276 IsEmpty]: Start isEmpty. Operand 206339 states and 271617 transitions. [2020-12-22 15:30:30,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-12-22 15:30:30,855 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:30:30,855 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:30,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:30:30,856 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:30:30,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:30:30,856 INFO L82 PathProgramCache]: Analyzing trace with hash -811767467, now seen corresponding path program 1 times [2020-12-22 15:30:30,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:30:30,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109382302] [2020-12-22 15:30:30,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:30:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:30:31,800 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:30:31,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109382302] [2020-12-22 15:30:31,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:30:31,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:30:31,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121199768] [2020-12-22 15:30:31,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:30:31,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:30:31,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:30:31,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:30:31,808 INFO L87 Difference]: Start difference. First operand 206339 states and 271617 transitions. Second operand 3 states. [2020-12-22 15:30:41,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:30:41,498 INFO L93 Difference]: Finished difference Result 593700 states and 782516 transitions. [2020-12-22 15:30:41,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:30:41,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-12-22 15:30:41,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:30:42,316 INFO L225 Difference]: With dead ends: 593700 [2020-12-22 15:30:42,317 INFO L226 Difference]: Without dead ends: 387469 [2020-12-22 15:30:42,679 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 15:30:43,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387469 states.