/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-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 16:46:20,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 16:46:20,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 16:46:20,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 16:46:20,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 16:46:20,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 16:46:20,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 16:46:20,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 16:46:20,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 16:46:20,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 16:46:20,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 16:46:20,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 16:46:20,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 16:46:20,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 16:46:20,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 16:46:20,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 16:46:20,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 16:46:20,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 16:46:20,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 16:46:20,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 16:46:20,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 16:46:20,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 16:46:20,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 16:46:20,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 16:46:20,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 16:46:20,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 16:46:20,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 16:46:20,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 16:46:20,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 16:46:20,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 16:46:20,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 16:46:20,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 16:46:20,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 16:46:20,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 16:46:20,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 16:46:20,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 16:46:20,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 16:46:20,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 16:46:20,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 16:46:20,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 16:46:20,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 16:46:20,520 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 16:46:20,548 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 16:46:20,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 16:46:20,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 16:46:20,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 16:46:20,550 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 16:46:20,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 16:46:20,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 16:46:20,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 16:46:20,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 16:46:20,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 16:46:20,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 16:46:20,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 16:46:20,552 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 16:46:20,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 16:46:20,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 16:46:20,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 16:46:20,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 16:46:20,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 16:46:20,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 16:46:20,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 16:46:20,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 16:46:20,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 16:46:20,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 16:46:20,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 16:46:20,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 16:46:20,555 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 16:46:20,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 16:46:20,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 16:46:20,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 16:46:20,988 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 16:46:20,990 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 16:46:20,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2020-12-22 16:46:21,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be6468c1b/7421f90cef104d88ad08a1d948a9fe84/FLAG207296033 [2020-12-22 16:46:22,345 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 16:46:22,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2020-12-22 16:46:22,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be6468c1b/7421f90cef104d88ad08a1d948a9fe84/FLAG207296033 [2020-12-22 16:46:22,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be6468c1b/7421f90cef104d88ad08a1d948a9fe84 [2020-12-22 16:46:22,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 16:46:22,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 16:46:22,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 16:46:22,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 16:46:22,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 16:46:22,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:46:22" (1/1) ... [2020-12-22 16:46:22,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9364562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:46:22, skipping insertion in model container [2020-12-22 16:46:22,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:46:22" (1/1) ... [2020-12-22 16:46:22,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 16:46:22,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 16:46:26,143 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-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2020-12-22 16:46:26,146 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-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2020-12-22 16:46:26,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:46:26,214 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 16:46:26,705 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-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2020-12-22 16:46:26,706 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-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2020-12-22 16:46:26,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:46:27,588 INFO L208 MainTranslator]: Completed translation [2020-12-22 16:46:27,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:46:27 WrapperNode [2020-12-22 16:46:27,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 16:46:27,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 16:46:27,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 16:46:27,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 16:46:27,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:46:27" (1/1) ... [2020-12-22 16:46:27,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:46:27" (1/1) ... [2020-12-22 16:46:29,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 16:46:29,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 16:46:29,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 16:46:29,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 16:46:29,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:46:27" (1/1) ... [2020-12-22 16:46:29,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:46:27" (1/1) ... [2020-12-22 16:46:29,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:46:27" (1/1) ... [2020-12-22 16:46:29,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:46:27" (1/1) ... [2020-12-22 16:46:30,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:46:27" (1/1) ... [2020-12-22 16:46:30,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:46:27" (1/1) ... [2020-12-22 16:46:30,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:46:27" (1/1) ... [2020-12-22 16:46:30,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 16:46:30,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 16:46:30,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 16:46:30,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 16:46:30,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:46:27" (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 16:46:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 16:46:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 16:46:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 16:46:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 16:46:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 16:46:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 16:46:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 16:46:30,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 16:46:30,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 16:46:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 16:46:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 16:46:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 16:46:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 16:46:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 16:46:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 16:46:59,415 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 16:46:59,417 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 16:46:59,417 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 16:46:59,418 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 16:46:59,420 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 16:46:59,421 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 16:46:59,492 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 16:46:59,492 INFO L299 CfgBuilder]: Removed 10504 assume(true) statements. [2020-12-22 16:46:59,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:46:59 BoogieIcfgContainer [2020-12-22 16:46:59,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 16:46:59,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 16:46:59,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 16:46:59,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 16:46:59,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:46:22" (1/3) ... [2020-12-22 16:46:59,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ecb7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:46:59, skipping insertion in model container [2020-12-22 16:46:59,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:46:27" (2/3) ... [2020-12-22 16:46:59,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ecb7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:46:59, skipping insertion in model container [2020-12-22 16:46:59,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:46:59" (3/3) ... [2020-12-22 16:46:59,516 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2020-12-22 16:46:59,523 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 16:46:59,533 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-12-22 16:46:59,554 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-12-22 16:46:59,619 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 16:46:59,619 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 16:46:59,620 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 16:46:59,620 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 16:46:59,620 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 16:46:59,620 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 16:46:59,620 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 16:46:59,620 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 16:46:59,708 INFO L276 IsEmpty]: Start isEmpty. Operand 6745 states. [2020-12-22 16:46:59,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 16:46:59,731 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:46:59,732 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] [2020-12-22 16:46:59,733 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.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:46:59,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:46:59,739 INFO L82 PathProgramCache]: Analyzing trace with hash -767304460, now seen corresponding path program 1 times [2020-12-22 16:46:59,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:46:59,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509120273] [2020-12-22 16:46:59,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:47:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:47:00,770 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 16:47:00,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509120273] [2020-12-22 16:47:00,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:47:00,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:47:00,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569217877] [2020-12-22 16:47:00,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:47:00,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:47:00,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:47:00,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:47:00,799 INFO L87 Difference]: Start difference. First operand 6745 states. Second operand 3 states. [2020-12-22 16:47:03,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:47:03,847 INFO L93 Difference]: Finished difference Result 19648 states and 23735 transitions. [2020-12-22 16:47:03,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:47:03,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-22 16:47:03,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:47:03,949 INFO L225 Difference]: With dead ends: 19648 [2020-12-22 16:47:03,950 INFO L226 Difference]: Without dead ends: 12645 [2020-12-22 16:47:03,978 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 16:47:04,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12645 states. [2020-12-22 16:47:04,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12645 to 12317. [2020-12-22 16:47:04,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12317 states. [2020-12-22 16:47:04,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12317 states to 12317 states and 14667 transitions. [2020-12-22 16:47:04,518 INFO L78 Accepts]: Start accepts. Automaton has 12317 states and 14667 transitions. Word has length 64 [2020-12-22 16:47:04,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:47:04,520 INFO L481 AbstractCegarLoop]: Abstraction has 12317 states and 14667 transitions. [2020-12-22 16:47:04,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:47:04,520 INFO L276 IsEmpty]: Start isEmpty. Operand 12317 states and 14667 transitions. [2020-12-22 16:47:04,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 16:47:04,529 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:47:04,529 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] [2020-12-22 16:47:04,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 16:47:04,530 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.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:47:04,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:47:04,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1484214665, now seen corresponding path program 1 times [2020-12-22 16:47:04,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:47:04,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348716550] [2020-12-22 16:47:04,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:47:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:47:04,930 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 16:47:04,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348716550] [2020-12-22 16:47:04,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:47:04,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 16:47:04,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648108243] [2020-12-22 16:47:04,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 16:47:04,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:47:04,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 16:47:04,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 16:47:04,934 INFO L87 Difference]: Start difference. First operand 12317 states and 14667 transitions. Second operand 6 states. [2020-12-22 16:47:10,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:47:10,500 INFO L93 Difference]: Finished difference Result 32360 states and 38789 transitions. [2020-12-22 16:47:10,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 16:47:10,501 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-12-22 16:47:10,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:47:10,607 INFO L225 Difference]: With dead ends: 32360 [2020-12-22 16:47:10,607 INFO L226 Difference]: Without dead ends: 20119 [2020-12-22 16:47:10,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 16:47:11,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20119 states. [2020-12-22 16:47:12,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20119 to 20079. [2020-12-22 16:47:12,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20079 states. [2020-12-22 16:47:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20079 states to 20079 states and 24143 transitions. [2020-12-22 16:47:12,143 INFO L78 Accepts]: Start accepts. Automaton has 20079 states and 24143 transitions. Word has length 70 [2020-12-22 16:47:12,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:47:12,144 INFO L481 AbstractCegarLoop]: Abstraction has 20079 states and 24143 transitions. [2020-12-22 16:47:12,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 16:47:12,144 INFO L276 IsEmpty]: Start isEmpty. Operand 20079 states and 24143 transitions. [2020-12-22 16:47:12,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 16:47:12,146 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:47:12,147 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] [2020-12-22 16:47:12,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 16:47:12,147 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.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:47:12,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:47:12,149 INFO L82 PathProgramCache]: Analyzing trace with hash -662246185, now seen corresponding path program 1 times [2020-12-22 16:47:12,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:47:12,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788145298] [2020-12-22 16:47:12,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:47:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:47:12,474 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 16:47:12,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788145298] [2020-12-22 16:47:12,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:47:12,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:47:12,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803696658] [2020-12-22 16:47:12,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:47:12,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:47:12,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:47:12,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:47:12,485 INFO L87 Difference]: Start difference. First operand 20079 states and 24143 transitions. Second operand 3 states. [2020-12-22 16:47:16,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:47:16,108 INFO L93 Difference]: Finished difference Result 57314 states and 68576 transitions. [2020-12-22 16:47:16,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:47:16,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-12-22 16:47:16,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:47:16,216 INFO L225 Difference]: With dead ends: 57314 [2020-12-22 16:47:16,217 INFO L226 Difference]: Without dead ends: 37311 [2020-12-22 16:47:16,282 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 16:47:16,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37311 states. [2020-12-22 16:47:17,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37311 to 37054. [2020-12-22 16:47:17,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37054 states. [2020-12-22 16:47:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37054 states to 37054 states and 44213 transitions. [2020-12-22 16:47:17,832 INFO L78 Accepts]: Start accepts. Automaton has 37054 states and 44213 transitions. Word has length 73 [2020-12-22 16:47:17,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:47:17,834 INFO L481 AbstractCegarLoop]: Abstraction has 37054 states and 44213 transitions. [2020-12-22 16:47:17,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:47:17,834 INFO L276 IsEmpty]: Start isEmpty. Operand 37054 states and 44213 transitions. [2020-12-22 16:47:17,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-12-22 16:47:17,843 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:47:17,844 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-12-22 16:47:17,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 16:47:17,844 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.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:47:17,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:47:17,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1447834720, now seen corresponding path program 1 times [2020-12-22 16:47:17,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:47:17,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536525996] [2020-12-22 16:47:17,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:47:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:47:18,148 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:47:18,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536525996] [2020-12-22 16:47:18,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:47:18,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 16:47:18,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467368896] [2020-12-22 16:47:18,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:47:18,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:47:18,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:47:18,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:47:18,151 INFO L87 Difference]: Start difference. First operand 37054 states and 44213 transitions. Second operand 3 states. [2020-12-22 16:47:20,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:47:20,671 INFO L93 Difference]: Finished difference Result 111010 states and 132469 transitions. [2020-12-22 16:47:20,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:47:20,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-12-22 16:47:20,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:47:20,860 INFO L225 Difference]: With dead ends: 111010 [2020-12-22 16:47:20,860 INFO L226 Difference]: Without dead ends: 74032 [2020-12-22 16:47:20,923 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 16:47:21,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74032 states. [2020-12-22 16:47:23,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74032 to 74008. [2020-12-22 16:47:23,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74008 states. [2020-12-22 16:47:23,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74008 states to 74008 states and 87981 transitions. [2020-12-22 16:47:23,557 INFO L78 Accepts]: Start accepts. Automaton has 74008 states and 87981 transitions. Word has length 124 [2020-12-22 16:47:23,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:47:23,558 INFO L481 AbstractCegarLoop]: Abstraction has 74008 states and 87981 transitions. [2020-12-22 16:47:23,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:47:23,558 INFO L276 IsEmpty]: Start isEmpty. Operand 74008 states and 87981 transitions. [2020-12-22 16:47:23,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-12-22 16:47:23,570 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:47:23,570 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-12-22 16:47:23,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 16:47:23,571 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.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:47:23,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:47:23,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1207594974, now seen corresponding path program 1 times [2020-12-22 16:47:23,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:47:23,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915607863] [2020-12-22 16:47:23,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:47:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:47:24,070 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:47:24,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915607863] [2020-12-22 16:47:24,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:47:24,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 16:47:24,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631733126] [2020-12-22 16:47:24,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:47:24,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:47:24,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:47:24,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:47:24,074 INFO L87 Difference]: Start difference. First operand 74008 states and 87981 transitions. Second operand 3 states. [2020-12-22 16:47:26,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:47:26,569 INFO L93 Difference]: Finished difference Result 147916 states and 175853 transitions. [2020-12-22 16:47:26,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:47:26,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-12-22 16:47:26,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:47:26,767 INFO L225 Difference]: With dead ends: 147916 [2020-12-22 16:47:26,768 INFO L226 Difference]: Without dead ends: 73984 [2020-12-22 16:47:26,916 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 16:47:26,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73984 states. [2020-12-22 16:47:29,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73984 to 73984. [2020-12-22 16:47:29,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73984 states. [2020-12-22 16:47:29,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73984 states to 73984 states and 87861 transitions. [2020-12-22 16:47:29,460 INFO L78 Accepts]: Start accepts. Automaton has 73984 states and 87861 transitions. Word has length 124 [2020-12-22 16:47:29,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:47:29,460 INFO L481 AbstractCegarLoop]: Abstraction has 73984 states and 87861 transitions. [2020-12-22 16:47:29,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:47:29,460 INFO L276 IsEmpty]: Start isEmpty. Operand 73984 states and 87861 transitions. [2020-12-22 16:47:29,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-12-22 16:47:29,472 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:47:29,472 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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 16:47:29,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 16:47:29,473 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.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:47:29,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:47:29,473 INFO L82 PathProgramCache]: Analyzing trace with hash -239405869, now seen corresponding path program 1 times [2020-12-22 16:47:29,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:47:29,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303759655] [2020-12-22 16:47:29,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:47:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:47:29,767 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:47:29,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303759655] [2020-12-22 16:47:29,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:47:29,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:47:29,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152532515] [2020-12-22 16:47:29,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:47:29,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:47:29,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:47:29,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:47:29,770 INFO L87 Difference]: Start difference. First operand 73984 states and 87861 transitions. Second operand 3 states. [2020-12-22 16:47:35,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:47:35,380 INFO L93 Difference]: Finished difference Result 161710 states and 192262 transitions. [2020-12-22 16:47:35,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:47:35,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-12-22 16:47:35,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:47:35,535 INFO L225 Difference]: With dead ends: 161710 [2020-12-22 16:47:35,536 INFO L226 Difference]: Without dead ends: 87802 [2020-12-22 16:47:35,681 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 16:47:35,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87802 states. [2020-12-22 16:47:38,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87802 to 87760. [2020-12-22 16:47:38,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87760 states. [2020-12-22 16:47:38,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87760 states to 87760 states and 104337 transitions. [2020-12-22 16:47:38,679 INFO L78 Accepts]: Start accepts. Automaton has 87760 states and 104337 transitions. Word has length 127 [2020-12-22 16:47:38,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:47:38,679 INFO L481 AbstractCegarLoop]: Abstraction has 87760 states and 104337 transitions. [2020-12-22 16:47:38,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:47:38,680 INFO L276 IsEmpty]: Start isEmpty. Operand 87760 states and 104337 transitions. [2020-12-22 16:47:38,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-12-22 16:47:38,689 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:47:38,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:47:38,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 16:47:38,690 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.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:47:38,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:47:38,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1758692867, now seen corresponding path program 1 times [2020-12-22 16:47:38,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:47:38,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300738191] [2020-12-22 16:47:38,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:47:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:47:39,168 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 16:47:39,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300738191] [2020-12-22 16:47:39,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:47:39,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:47:39,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382463682] [2020-12-22 16:47:39,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:47:39,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:47:39,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:47:39,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:47:39,171 INFO L87 Difference]: Start difference. First operand 87760 states and 104337 transitions. Second operand 3 states. [2020-12-22 16:47:45,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:47:45,248 INFO L93 Difference]: Finished difference Result 221412 states and 264722 transitions. [2020-12-22 16:47:45,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:47:45,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2020-12-22 16:47:45,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:47:45,492 INFO L225 Difference]: With dead ends: 221412 [2020-12-22 16:47:45,493 INFO L226 Difference]: Without dead ends: 133728 [2020-12-22 16:47:45,637 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 16:47:46,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133728 states. [2020-12-22 16:47:49,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133728 to 133480. [2020-12-22 16:47:49,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133480 states. [2020-12-22 16:47:49,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133480 states to 133480 states and 160177 transitions. [2020-12-22 16:47:49,919 INFO L78 Accepts]: Start accepts. Automaton has 133480 states and 160177 transitions. Word has length 139 [2020-12-22 16:47:49,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:47:49,919 INFO L481 AbstractCegarLoop]: Abstraction has 133480 states and 160177 transitions. [2020-12-22 16:47:49,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:47:49,919 INFO L276 IsEmpty]: Start isEmpty. Operand 133480 states and 160177 transitions. [2020-12-22 16:47:49,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-12-22 16:47:49,931 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:47:49,931 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, 1, 1, 1, 1, 1, 1, 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 16:47:49,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 16:47:49,932 INFO L429 AbstractCegarLoop]: === Iteration 8 === [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.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:47:49,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:47:49,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1211600340, now seen corresponding path program 1 times [2020-12-22 16:47:49,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:47:49,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385978269] [2020-12-22 16:47:49,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:47:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:47:50,419 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 16:47:50,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385978269] [2020-12-22 16:47:50,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:47:50,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:47:50,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48656010] [2020-12-22 16:47:50,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:47:50,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:47:50,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:47:50,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:47:50,423 INFO L87 Difference]: Start difference. First operand 133480 states and 160177 transitions. Second operand 3 states. [2020-12-22 16:48:00,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:48:00,091 INFO L93 Difference]: Finished difference Result 399968 states and 480041 transitions. [2020-12-22 16:48:00,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:48:00,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-12-22 16:48:00,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:48:00,627 INFO L225 Difference]: With dead ends: 399968 [2020-12-22 16:48:00,627 INFO L226 Difference]: Without dead ends: 266564 [2020-12-22 16:48:00,913 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 16:48:01,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266564 states. [2020-12-22 16:48:08,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266564 to 266156. [2020-12-22 16:48:08,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266156 states. [2020-12-22 16:48:09,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266156 states to 266156 states and 319361 transitions. [2020-12-22 16:48:09,688 INFO L78 Accepts]: Start accepts. Automaton has 266156 states and 319361 transitions. Word has length 154 [2020-12-22 16:48:09,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:48:09,688 INFO L481 AbstractCegarLoop]: Abstraction has 266156 states and 319361 transitions. [2020-12-22 16:48:09,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:48:09,689 INFO L276 IsEmpty]: Start isEmpty. Operand 266156 states and 319361 transitions. [2020-12-22 16:48:09,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-12-22 16:48:09,707 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:48:09,708 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:48:09,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 16:48:09,708 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:48:09,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:48:09,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1000668673, now seen corresponding path program 1 times [2020-12-22 16:48:09,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:48:09,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067120411] [2020-12-22 16:48:09,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:48:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:48:09,954 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 16:48:09,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067120411] [2020-12-22 16:48:09,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:48:09,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:48:09,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973208203] [2020-12-22 16:48:09,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:48:09,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:48:09,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:48:09,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:48:09,957 INFO L87 Difference]: Start difference. First operand 266156 states and 319361 transitions. Second operand 3 states. [2020-12-22 16:48:22,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:48:22,051 INFO L93 Difference]: Finished difference Result 566726 states and 681034 transitions. [2020-12-22 16:48:22,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:48:22,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-12-22 16:48:22,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:48:22,696 INFO L225 Difference]: With dead ends: 566726 [2020-12-22 16:48:22,696 INFO L226 Difference]: Without dead ends: 300646 [2020-12-22 16:48:23,111 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 16:48:23,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300646 states. [2020-12-22 16:48:33,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300646 to 300508. [2020-12-22 16:48:33,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300508 states. [2020-12-22 16:48:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300508 states to 300508 states and 361305 transitions. [2020-12-22 16:48:35,235 INFO L78 Accepts]: Start accepts. Automaton has 300508 states and 361305 transitions. Word has length 164 [2020-12-22 16:48:35,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:48:35,235 INFO L481 AbstractCegarLoop]: Abstraction has 300508 states and 361305 transitions. [2020-12-22 16:48:35,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:48:35,236 INFO L276 IsEmpty]: Start isEmpty. Operand 300508 states and 361305 transitions. [2020-12-22 16:48:35,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-12-22 16:48:35,258 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:48:35,265 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:48:35,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 16:48:35,266 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:48:35,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:48:35,266 INFO L82 PathProgramCache]: Analyzing trace with hash -959993923, now seen corresponding path program 1 times [2020-12-22 16:48:35,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:48:35,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136884230] [2020-12-22 16:48:35,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:48:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:48:36,253 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 16:48:36,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136884230] [2020-12-22 16:48:36,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:48:36,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:48:36,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401101672] [2020-12-22 16:48:36,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:48:36,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:48:36,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:48:36,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:48:36,256 INFO L87 Difference]: Start difference. First operand 300508 states and 361305 transitions. Second operand 3 states. [2020-12-22 16:48:50,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:48:50,296 INFO L93 Difference]: Finished difference Result 635526 states and 765114 transitions. [2020-12-22 16:48:50,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:48:50,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-12-22 16:48:50,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:48:51,054 INFO L225 Difference]: With dead ends: 635526 [2020-12-22 16:48:51,054 INFO L226 Difference]: Without dead ends: 335094 [2020-12-22 16:48:51,519 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 16:48:51,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335094 states. [2020-12-22 16:49:01,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335094 to 334956. [2020-12-22 16:49:01,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334956 states. [2020-12-22 16:49:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334956 states to 334956 states and 403345 transitions. [2020-12-22 16:49:02,730 INFO L78 Accepts]: Start accepts. Automaton has 334956 states and 403345 transitions. Word has length 164 [2020-12-22 16:49:02,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:49:02,730 INFO L481 AbstractCegarLoop]: Abstraction has 334956 states and 403345 transitions. [2020-12-22 16:49:02,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:49:02,730 INFO L276 IsEmpty]: Start isEmpty. Operand 334956 states and 403345 transitions. [2020-12-22 16:49:02,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-12-22 16:49:02,762 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:49:02,763 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:49:02,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 16:49:02,766 INFO L429 AbstractCegarLoop]: === Iteration 11 === [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.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:49:02,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:49:02,767 INFO L82 PathProgramCache]: Analyzing trace with hash -149710948, now seen corresponding path program 1 times [2020-12-22 16:49:02,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:49:02,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724107266] [2020-12-22 16:49:02,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:49:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:49:03,029 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-22 16:49:03,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724107266] [2020-12-22 16:49:03,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:49:03,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:49:03,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148344024] [2020-12-22 16:49:03,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:49:03,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:49:03,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:49:03,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:49:03,031 INFO L87 Difference]: Start difference. First operand 334956 states and 403345 transitions. Second operand 3 states. [2020-12-22 16:49:19,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:49:19,314 INFO L93 Difference]: Finished difference Result 669887 states and 806666 transitions. [2020-12-22 16:49:19,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:49:19,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2020-12-22 16:49:19,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:49:20,295 INFO L225 Difference]: With dead ends: 669887 [2020-12-22 16:49:20,295 INFO L226 Difference]: Without dead ends: 335007 [2020-12-22 16:49:20,957 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 16:49:21,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335007 states.