/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-kernel-locking-mutex_drivers-net-netconsole.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:49:13,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:49:13,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:49:13,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:49:13,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:49:13,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:49:13,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:49:13,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:49:13,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:49:13,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:49:13,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:49:13,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:49:13,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:49:13,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:49:13,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:49:13,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:49:13,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:49:13,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:49:13,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:49:13,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:49:13,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:49:13,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:49:13,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:49:13,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:49:13,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:49:13,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:49:13,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:49:13,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:49:13,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:49:13,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:49:13,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:49:13,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:49:13,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:49:13,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:49:13,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:49:13,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:49:13,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:49:13,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:49:13,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:49:13,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:49:13,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:49:13,721 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:49:13,777 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:49:13,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:49:13,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:49:13,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:49:13,783 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:49:13,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:49:13,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:49:13,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:49:13,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:49:13,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:49:13,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:49:13,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:49:13,786 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:49:13,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:49:13,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:49:13,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:49:13,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:49:13,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:49:13,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:49:13,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:49:13,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:49:13,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:49:13,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:49:13,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:49:13,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:49:13,789 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:49:14,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:49:14,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:49:14,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:49:14,280 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:49:14,283 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:49:14,285 INFO L432 ainManager$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-kernel-locking-mutex_drivers-net-netconsole.cil.i [2020-12-22 15:49:14,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a797f4e4a/c0b0248c00864a8e9818d1b913d0ae18/FLAG881bb655c [2020-12-22 15:49:15,461 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:49:15,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2020-12-22 15:49:15,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a797f4e4a/c0b0248c00864a8e9818d1b913d0ae18/FLAG881bb655c [2020-12-22 15:49:15,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a797f4e4a/c0b0248c00864a8e9818d1b913d0ae18 [2020-12-22 15:49:15,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:49:15,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:49:15,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:49:15,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:49:15,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:49:15,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:49:15" (1/1) ... [2020-12-22 15:49:15,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75994d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:49:15, skipping insertion in model container [2020-12-22 15:49:15,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:49:15" (1/1) ... [2020-12-22 15:49:15,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:49:16,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:49:18,702 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-kernel-locking-mutex_drivers-net-netconsole.cil.i[311030,311043] [2020-12-22 15:49:18,705 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311196,311209] [2020-12-22 15:49:18,706 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311360,311373] [2020-12-22 15:49:18,707 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-kernel-locking-mutex_drivers-net-netconsole.cil.i[311525,311538] [2020-12-22 15:49:18,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:49:18,751 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:49:19,130 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-kernel-locking-mutex_drivers-net-netconsole.cil.i[311030,311043] [2020-12-22 15:49:19,131 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-kernel-locking-mutex_drivers-net-netconsole.cil.i[311196,311209] [2020-12-22 15:49:19,135 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-kernel-locking-mutex_drivers-net-netconsole.cil.i[311360,311373] [2020-12-22 15:49:19,136 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-kernel-locking-mutex_drivers-net-netconsole.cil.i[311525,311538] [2020-12-22 15:49:19,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:49:19,647 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:49:19,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:49:19 WrapperNode [2020-12-22 15:49:19,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:49:19,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:49:19,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:49:19,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:49:19,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:49:19" (1/1) ... [2020-12-22 15:49:19,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:49:19" (1/1) ... [2020-12-22 15:49:20,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:49:20,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:49:20,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:49:20,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:49:20,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:49:19" (1/1) ... [2020-12-22 15:49:20,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:49:19" (1/1) ... [2020-12-22 15:49:20,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:49:19" (1/1) ... [2020-12-22 15:49:20,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:49:19" (1/1) ... [2020-12-22 15:49:21,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:49:19" (1/1) ... [2020-12-22 15:49:21,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:49:19" (1/1) ... [2020-12-22 15:49:21,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:49:19" (1/1) ... [2020-12-22 15:49:21,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:49:21,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:49:21,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:49:21,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:49:21,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:49:19" (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 15:49:21,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:49:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:49:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2020-12-22 15:49:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:49:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:49:21,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:49:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:49:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:49:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:49:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:49:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:49:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:49:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:49:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 15:49:21,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:49:21,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:49:21,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:49:34,356 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,357 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,357 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#13: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,357 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,358 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#15: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,358 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#14: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,358 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#16: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,358 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,358 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,359 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,359 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,359 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,359 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,359 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,359 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,361 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 15:49:34,361 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 15:49:34,405 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:49:34,406 INFO L299 CfgBuilder]: Removed 3647 assume(true) statements. [2020-12-22 15:49:34,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:49:34 BoogieIcfgContainer [2020-12-22 15:49:34,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:49:34,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:49:34,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:49:34,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:49:34,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:49:15" (1/3) ... [2020-12-22 15:49:34,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f325008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:49:34, skipping insertion in model container [2020-12-22 15:49:34,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:49:19" (2/3) ... [2020-12-22 15:49:34,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f325008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:49:34, skipping insertion in model container [2020-12-22 15:49:34,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:49:34" (3/3) ... [2020-12-22 15:49:34,421 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2020-12-22 15:49:34,428 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:49:34,435 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 28 error locations. [2020-12-22 15:49:34,454 INFO L253 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2020-12-22 15:49:34,495 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:49:34,495 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:49:34,495 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:49:34,495 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:49:34,495 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:49:34,496 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:49:34,496 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:49:34,496 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:49:34,568 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states. [2020-12-22 15:49:34,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-12-22 15:49:34,598 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:49:34,599 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:34,600 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:49:34,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:49:34,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1145313028, now seen corresponding path program 1 times [2020-12-22 15:49:34,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:49:34,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331263917] [2020-12-22 15:49:34,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:49:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:49:35,712 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 15:49:35,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331263917] [2020-12-22 15:49:35,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:49:35,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:49:35,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236782368] [2020-12-22 15:49:35,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:49:35,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:49:35,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:49:35,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:49:35,769 INFO L87 Difference]: Start difference. First operand 3652 states. Second operand 3 states. [2020-12-22 15:49:38,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:49:38,353 INFO L93 Difference]: Finished difference Result 9183 states and 12327 transitions. [2020-12-22 15:49:38,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:49:38,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-12-22 15:49:38,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:49:38,422 INFO L225 Difference]: With dead ends: 9183 [2020-12-22 15:49:38,423 INFO L226 Difference]: Without dead ends: 5789 [2020-12-22 15:49:38,443 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 15:49:38,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5789 states. [2020-12-22 15:49:38,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5789 to 5757. [2020-12-22 15:49:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5757 states. [2020-12-22 15:49:38,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 7368 transitions. [2020-12-22 15:49:38,766 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 7368 transitions. Word has length 241 [2020-12-22 15:49:38,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:49:38,772 INFO L481 AbstractCegarLoop]: Abstraction has 5757 states and 7368 transitions. [2020-12-22 15:49:38,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:49:38,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 7368 transitions. [2020-12-22 15:49:38,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-12-22 15:49:38,783 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:49:38,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:38,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:49:38,784 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:49:38,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:49:38,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1766192994, now seen corresponding path program 1 times [2020-12-22 15:49:38,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:49:38,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574624104] [2020-12-22 15:49:38,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:49:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:49:39,317 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 15:49:39,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574624104] [2020-12-22 15:49:39,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:49:39,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:49:39,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49577184] [2020-12-22 15:49:39,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:49:39,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:49:39,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:49:39,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:49:39,327 INFO L87 Difference]: Start difference. First operand 5757 states and 7368 transitions. Second operand 3 states. [2020-12-22 15:49:41,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:49:41,880 INFO L93 Difference]: Finished difference Result 13047 states and 16804 transitions. [2020-12-22 15:49:41,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:49:41,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-12-22 15:49:41,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:49:41,921 INFO L225 Difference]: With dead ends: 13047 [2020-12-22 15:49:41,921 INFO L226 Difference]: Without dead ends: 7886 [2020-12-22 15:49:41,934 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 15:49:41,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7886 states. [2020-12-22 15:49:42,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7886 to 7760. [2020-12-22 15:49:42,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7760 states. [2020-12-22 15:49:42,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7760 states to 7760 states and 9985 transitions. [2020-12-22 15:49:42,382 INFO L78 Accepts]: Start accepts. Automaton has 7760 states and 9985 transitions. Word has length 255 [2020-12-22 15:49:42,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:49:42,384 INFO L481 AbstractCegarLoop]: Abstraction has 7760 states and 9985 transitions. [2020-12-22 15:49:42,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:49:42,391 INFO L276 IsEmpty]: Start isEmpty. Operand 7760 states and 9985 transitions. [2020-12-22 15:49:42,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-12-22 15:49:42,400 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:49:42,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:42,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:49:42,401 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:49:42,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:49:42,403 INFO L82 PathProgramCache]: Analyzing trace with hash -196580125, now seen corresponding path program 1 times [2020-12-22 15:49:42,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:49:42,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157807694] [2020-12-22 15:49:42,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:49:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:49:42,901 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 15:49:42,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157807694] [2020-12-22 15:49:42,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:49:42,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:49:42,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534564541] [2020-12-22 15:49:42,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:49:42,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:49:42,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:49:42,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:49:42,905 INFO L87 Difference]: Start difference. First operand 7760 states and 9985 transitions. Second operand 3 states. [2020-12-22 15:49:45,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:49:45,335 INFO L93 Difference]: Finished difference Result 19034 states and 24626 transitions. [2020-12-22 15:49:45,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:49:45,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 256 [2020-12-22 15:49:45,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:49:45,403 INFO L225 Difference]: With dead ends: 19034 [2020-12-22 15:49:45,403 INFO L226 Difference]: Without dead ends: 11870 [2020-12-22 15:49:45,424 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 15:49:45,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11870 states. [2020-12-22 15:49:45,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11870 to 11742. [2020-12-22 15:49:45,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11742 states. [2020-12-22 15:49:46,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11742 states to 11742 states and 15183 transitions. [2020-12-22 15:49:46,019 INFO L78 Accepts]: Start accepts. Automaton has 11742 states and 15183 transitions. Word has length 256 [2020-12-22 15:49:46,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:49:46,020 INFO L481 AbstractCegarLoop]: Abstraction has 11742 states and 15183 transitions. [2020-12-22 15:49:46,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:49:46,020 INFO L276 IsEmpty]: Start isEmpty. Operand 11742 states and 15183 transitions. [2020-12-22 15:49:46,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-12-22 15:49:46,027 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:49:46,028 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:46,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:49:46,028 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:49:46,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:49:46,029 INFO L82 PathProgramCache]: Analyzing trace with hash 251130179, now seen corresponding path program 1 times [2020-12-22 15:49:46,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:49:46,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469432569] [2020-12-22 15:49:46,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:49:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:49:46,357 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 15:49:46,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469432569] [2020-12-22 15:49:46,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:49:46,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:49:46,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818082841] [2020-12-22 15:49:46,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:49:46,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:49:46,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:49:46,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:49:46,360 INFO L87 Difference]: Start difference. First operand 11742 states and 15183 transitions. Second operand 3 states. [2020-12-22 15:49:48,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:49:48,913 INFO L93 Difference]: Finished difference Result 30666 states and 39815 transitions. [2020-12-22 15:49:48,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:49:48,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 257 [2020-12-22 15:49:48,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:49:48,973 INFO L225 Difference]: With dead ends: 30666 [2020-12-22 15:49:48,973 INFO L226 Difference]: Without dead ends: 19520 [2020-12-22 15:49:48,997 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 15:49:49,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19520 states. [2020-12-22 15:49:49,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19520 to 19390. [2020-12-22 15:49:49,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19390 states. [2020-12-22 15:49:49,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19390 states to 19390 states and 25162 transitions. [2020-12-22 15:49:49,572 INFO L78 Accepts]: Start accepts. Automaton has 19390 states and 25162 transitions. Word has length 257 [2020-12-22 15:49:49,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:49:49,572 INFO L481 AbstractCegarLoop]: Abstraction has 19390 states and 25162 transitions. [2020-12-22 15:49:49,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:49:49,573 INFO L276 IsEmpty]: Start isEmpty. Operand 19390 states and 25162 transitions. [2020-12-22 15:49:49,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-12-22 15:49:49,580 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:49:49,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:49,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:49:49,581 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:49:49,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:49:49,582 INFO L82 PathProgramCache]: Analyzing trace with hash 728372904, now seen corresponding path program 1 times [2020-12-22 15:49:49,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:49:49,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436883968] [2020-12-22 15:49:49,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:49:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:49:49,923 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 15:49:49,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436883968] [2020-12-22 15:49:49,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:49:49,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:49:49,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239858800] [2020-12-22 15:49:49,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:49:49,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:49:49,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:49:49,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:49:49,926 INFO L87 Difference]: Start difference. First operand 19390 states and 25162 transitions. Second operand 3 states. [2020-12-22 15:49:53,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:49:53,049 INFO L93 Difference]: Finished difference Result 52862 states and 68790 transitions. [2020-12-22 15:49:53,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:49:53,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 258 [2020-12-22 15:49:53,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:49:53,152 INFO L225 Difference]: With dead ends: 52862 [2020-12-22 15:49:53,153 INFO L226 Difference]: Without dead ends: 34068 [2020-12-22 15:49:53,187 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 15:49:53,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34068 states. [2020-12-22 15:49:54,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34068 to 33936. [2020-12-22 15:49:54,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33936 states. [2020-12-22 15:49:54,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33936 states to 33936 states and 44136 transitions. [2020-12-22 15:49:54,835 INFO L78 Accepts]: Start accepts. Automaton has 33936 states and 44136 transitions. Word has length 258 [2020-12-22 15:49:54,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:49:54,836 INFO L481 AbstractCegarLoop]: Abstraction has 33936 states and 44136 transitions. [2020-12-22 15:49:54,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:49:54,837 INFO L276 IsEmpty]: Start isEmpty. Operand 33936 states and 44136 transitions. [2020-12-22 15:49:54,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-12-22 15:49:54,845 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:49:54,845 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:54,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:49:54,846 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:49:54,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:49:54,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1600673176, now seen corresponding path program 1 times [2020-12-22 15:49:54,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:49:54,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411718277] [2020-12-22 15:49:54,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:49:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:49:55,447 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 15:49:55,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411718277] [2020-12-22 15:49:55,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:49:55,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:49:55,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850534637] [2020-12-22 15:49:55,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:49:55,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:49:55,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:49:55,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:49:55,453 INFO L87 Difference]: Start difference. First operand 33936 states and 44136 transitions. Second operand 3 states. [2020-12-22 15:49:58,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:49:58,482 INFO L93 Difference]: Finished difference Result 94590 states and 123243 transitions. [2020-12-22 15:49:58,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:49:58,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 259 [2020-12-22 15:49:58,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:49:58,648 INFO L225 Difference]: With dead ends: 94590 [2020-12-22 15:49:58,648 INFO L226 Difference]: Without dead ends: 61250 [2020-12-22 15:49:58,710 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 15:49:58,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61250 states. [2020-12-22 15:50:01,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61250 to 61116. [2020-12-22 15:50:01,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61116 states. [2020-12-22 15:50:01,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61116 states to 61116 states and 79573 transitions. [2020-12-22 15:50:01,370 INFO L78 Accepts]: Start accepts. Automaton has 61116 states and 79573 transitions. Word has length 259 [2020-12-22 15:50:01,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:50:01,370 INFO L481 AbstractCegarLoop]: Abstraction has 61116 states and 79573 transitions. [2020-12-22 15:50:01,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:50:01,371 INFO L276 IsEmpty]: Start isEmpty. Operand 61116 states and 79573 transitions. [2020-12-22 15:50:01,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-12-22 15:50:01,382 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:50:01,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:50:01,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:50:01,383 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:50:01,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:50:01,387 INFO L82 PathProgramCache]: Analyzing trace with hash 501710317, now seen corresponding path program 1 times [2020-12-22 15:50:01,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:50:01,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431212835] [2020-12-22 15:50:01,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:50:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:50:01,827 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 15:50:01,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431212835] [2020-12-22 15:50:01,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:50:01,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:50:01,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746721057] [2020-12-22 15:50:01,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:50:01,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:50:01,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:50:01,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:50:01,831 INFO L87 Difference]: Start difference. First operand 61116 states and 79573 transitions. Second operand 3 states. [2020-12-22 15:50:05,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:50:05,893 INFO L93 Difference]: Finished difference Result 171464 states and 223465 transitions. [2020-12-22 15:50:05,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:50:05,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 260 [2020-12-22 15:50:05,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:50:06,151 INFO L225 Difference]: With dead ends: 171464 [2020-12-22 15:50:06,151 INFO L226 Difference]: Without dead ends: 110944 [2020-12-22 15:50:06,275 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 15:50:06,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110944 states. [2020-12-22 15:50:09,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110944 to 110808. [2020-12-22 15:50:09,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110808 states. [2020-12-22 15:50:09,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110808 states to 110808 states and 144276 transitions. [2020-12-22 15:50:09,783 INFO L78 Accepts]: Start accepts. Automaton has 110808 states and 144276 transitions. Word has length 260 [2020-12-22 15:50:09,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:50:09,784 INFO L481 AbstractCegarLoop]: Abstraction has 110808 states and 144276 transitions. [2020-12-22 15:50:09,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:50:09,784 INFO L276 IsEmpty]: Start isEmpty. Operand 110808 states and 144276 transitions. [2020-12-22 15:50:09,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-12-22 15:50:09,790 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:50:09,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:50:09,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:50:09,791 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:50:09,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:50:09,792 INFO L82 PathProgramCache]: Analyzing trace with hash 593632461, now seen corresponding path program 1 times [2020-12-22 15:50:09,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:50:09,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073306959] [2020-12-22 15:50:09,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:50:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:50:10,379 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 15:50:10,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073306959] [2020-12-22 15:50:10,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:50:10,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:50:10,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679491561] [2020-12-22 15:50:10,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:50:10,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:50:10,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:50:10,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:50:10,382 INFO L87 Difference]: Start difference. First operand 110808 states and 144276 transitions. Second operand 3 states. [2020-12-22 15:50:16,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:50:16,844 INFO L93 Difference]: Finished difference Result 312205 states and 406646 transitions. [2020-12-22 15:50:16,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:50:16,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2020-12-22 15:50:16,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:50:17,304 INFO L225 Difference]: With dead ends: 312205 [2020-12-22 15:50:17,304 INFO L226 Difference]: Without dead ends: 201993 [2020-12-22 15:50:17,470 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 15:50:17,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201993 states. [2020-12-22 15:50:22,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201993 to 201855. [2020-12-22 15:50:22,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201855 states. [2020-12-22 15:50:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201855 states to 201855 states and 262592 transitions. [2020-12-22 15:50:23,354 INFO L78 Accepts]: Start accepts. Automaton has 201855 states and 262592 transitions. Word has length 261 [2020-12-22 15:50:23,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:50:23,355 INFO L481 AbstractCegarLoop]: Abstraction has 201855 states and 262592 transitions. [2020-12-22 15:50:23,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:50:23,355 INFO L276 IsEmpty]: Start isEmpty. Operand 201855 states and 262592 transitions. [2020-12-22 15:50:23,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-12-22 15:50:23,362 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:50:23,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:50:23,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:50:23,363 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:50:23,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:50:23,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1562398350, now seen corresponding path program 1 times [2020-12-22 15:50:23,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:50:23,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305512375] [2020-12-22 15:50:23,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:50:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:50:23,706 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 15:50:23,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305512375] [2020-12-22 15:50:23,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:50:23,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:50:23,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809421799] [2020-12-22 15:50:23,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:50:23,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:50:23,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:50:23,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:50:23,713 INFO L87 Difference]: Start difference. First operand 201855 states and 262592 transitions. Second operand 3 states. [2020-12-22 15:50:34,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:50:34,086 INFO L93 Difference]: Finished difference Result 568290 states and 739641 transitions. [2020-12-22 15:50:34,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:50:34,087 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 262 [2020-12-22 15:50:34,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:50:34,936 INFO L225 Difference]: With dead ends: 568290 [2020-12-22 15:50:34,936 INFO L226 Difference]: Without dead ends: 367031 [2020-12-22 15:50:35,223 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 15:50:35,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367031 states. [2020-12-22 15:50:44,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367031 to 366891. [2020-12-22 15:50:44,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366891 states. [2020-12-22 15:50:45,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366891 states to 366891 states and 476949 transitions. [2020-12-22 15:50:45,391 INFO L78 Accepts]: Start accepts. Automaton has 366891 states and 476949 transitions. Word has length 262 [2020-12-22 15:50:45,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:50:45,392 INFO L481 AbstractCegarLoop]: Abstraction has 366891 states and 476949 transitions. [2020-12-22 15:50:45,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:50:45,392 INFO L276 IsEmpty]: Start isEmpty. Operand 366891 states and 476949 transitions. [2020-12-22 15:50:45,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-12-22 15:50:45,396 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:50:45,396 INFO L422 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:50:45,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 15:50:45,397 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:50:45,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:50:45,397 INFO L82 PathProgramCache]: Analyzing trace with hash -376994717, now seen corresponding path program 1 times [2020-12-22 15:50:45,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:50:45,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704332401] [2020-12-22 15:50:45,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:50:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:50:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:50:46,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704332401] [2020-12-22 15:50:46,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:50:46,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:50:46,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442673691] [2020-12-22 15:50:46,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:50:46,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:50:46,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:50:46,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:50:46,418 INFO L87 Difference]: Start difference. First operand 366891 states and 476949 transitions. Second operand 3 states. [2020-12-22 15:51:04,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:51:04,397 INFO L93 Difference]: Finished difference Result 1072093 states and 1397670 transitions. [2020-12-22 15:51:04,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:51:04,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2020-12-22 15:51:04,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:51:06,968 INFO L225 Difference]: With dead ends: 1072093 [2020-12-22 15:51:06,969 INFO L226 Difference]: Without dead ends: 705995 [2020-12-22 15:51:07,931 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 15:51:09,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705995 states. [2020-12-22 15:51:29,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705995 to 705963. [2020-12-22 15:51:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705963 states. [2020-12-22 15:51:31,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705963 states to 705963 states and 920341 transitions. [2020-12-22 15:51:31,974 INFO L78 Accepts]: Start accepts. Automaton has 705963 states and 920341 transitions. Word has length 276 [2020-12-22 15:51:31,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:51:31,975 INFO L481 AbstractCegarLoop]: Abstraction has 705963 states and 920341 transitions. [2020-12-22 15:51:31,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:51:31,975 INFO L276 IsEmpty]: Start isEmpty. Operand 705963 states and 920341 transitions. [2020-12-22 15:51:31,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-12-22 15:51:31,993 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:51:31,994 INFO L422 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:51:31,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 15:51:31,995 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:51:31,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:51:31,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1398063071, now seen corresponding path program 1 times [2020-12-22 15:51:31,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:51:31,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599676584] [2020-12-22 15:51:31,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:51:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:51:33,291 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 15:51:33,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599676584] [2020-12-22 15:51:33,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:51:33,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:51:33,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214485141] [2020-12-22 15:51:33,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:51:33,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:51:33,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:51:33,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:51:33,296 INFO L87 Difference]: Start difference. First operand 705963 states and 920341 transitions. Second operand 4 states. [2020-12-22 15:51:52,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:51:52,408 INFO L93 Difference]: Finished difference Result 705963 states and 920341 transitions. [2020-12-22 15:51:52,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 15:51:52,409 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 276 [2020-12-22 15:51:52,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:51:54,196 INFO L225 Difference]: With dead ends: 705963 [2020-12-22 15:51:54,196 INFO L226 Difference]: Without dead ends: 705957 [2020-12-22 15:51:54,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:51:55,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705957 states. [2020-12-22 15:52:13,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705957 to 705957. [2020-12-22 15:52:13,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705957 states.