/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:35:30,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:35:30,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:35:30,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:35:30,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:35:30,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:35:30,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:35:30,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:35:30,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:35:30,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:35:30,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:35:30,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:35:30,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:35:30,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:35:30,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:35:30,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:35:30,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:35:30,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:35:30,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:35:30,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:35:30,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:35:30,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:35:30,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:35:30,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:35:30,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:35:30,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:35:30,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:35:30,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:35:30,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:35:30,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:35:30,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:35:30,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:35:30,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:35:30,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:35:30,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:35:30,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:35:30,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:35:30,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:35:30,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:35:30,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:35:30,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:35:30,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:35:30,728 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:35:30,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:35:30,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:35:30,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:35:30,731 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:35:30,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:35:30,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:35:30,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:35:30,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:35:30,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:35:30,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:35:30,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:35:30,733 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:35:30,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:35:30,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:35:30,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:35:30,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:35:30,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:35:30,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:35:30,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:35:30,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:35:30,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:35:30,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:35:30,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:35:30,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:35:30,736 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:35:31,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:35:31,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:35:31,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:35:31,126 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:35:31,127 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:35:31,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2020-12-22 15:35:31,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a56d4cc6b/ea2a0f50577943358102a31ac7ee5fff/FLAGb00ecb6d2 [2020-12-22 15:35:32,496 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:35:32,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2020-12-22 15:35:32,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a56d4cc6b/ea2a0f50577943358102a31ac7ee5fff/FLAGb00ecb6d2 [2020-12-22 15:35:32,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a56d4cc6b/ea2a0f50577943358102a31ac7ee5fff [2020-12-22 15:35:32,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:35:32,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:35:32,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:35:32,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:35:32,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:35:32,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:35:32" (1/1) ... [2020-12-22 15:35:32,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1075c09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:35:32, skipping insertion in model container [2020-12-22 15:35:32,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:35:32" (1/1) ... [2020-12-22 15:35:32,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:35:32,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:35:37,263 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463372,463385] [2020-12-22 15:35:37,267 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463517,463530] [2020-12-22 15:35:37,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:35:37,322 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:35:37,938 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463372,463385] [2020-12-22 15:35:37,939 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463517,463530] [2020-12-22 15:35:37,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:35:38,921 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:35:38,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:35:38 WrapperNode [2020-12-22 15:35:38,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:35:38,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:35:38,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:35:38,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:35:38,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:35:38" (1/1) ... [2020-12-22 15:35:39,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:35:38" (1/1) ... [2020-12-22 15:35:40,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:35:40,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:35:40,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:35:40,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:35:40,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:35:38" (1/1) ... [2020-12-22 15:35:40,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:35:38" (1/1) ... [2020-12-22 15:35:40,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:35:38" (1/1) ... [2020-12-22 15:35:40,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:35:38" (1/1) ... [2020-12-22 15:35:40,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:35:38" (1/1) ... [2020-12-22 15:35:41,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:35:38" (1/1) ... [2020-12-22 15:35:41,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:35:38" (1/1) ... [2020-12-22 15:35:41,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:35:41,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:35:41,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:35:41,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:35:41,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:35:38" (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 15:35:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-12-22 15:35:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2020-12-22 15:35:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:35:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:35:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:35:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:35:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_release [2020-12-22 15:35:41,524 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_release [2020-12-22 15:35:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:35:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_commit_done [2020-12-22 15:35:41,527 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_commit_done [2020-12-22 15:35:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:35:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 15:35:41,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 15:35:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:35:41,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:35:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:35:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:35:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:35:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:35:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:35:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_call_done [2020-12-22 15:35:41,529 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_call_done [2020-12-22 15:35:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_release [2020-12-22 15:35:41,529 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_release [2020-12-22 15:35:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_call_done [2020-12-22 15:35:41,529 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_call_done [2020-12-22 15:35:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:35:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-12-22 15:35:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_release [2020-12-22 15:35:41,530 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_release [2020-12-22 15:35:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:35:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 15:35:41,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 15:36:09,112 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 15:36:09,113 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 15:36:09,113 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2020-12-22 15:36:09,113 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 15:36:09,114 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 15:36:09,115 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 15:36:09,184 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:36:09,184 INFO L299 CfgBuilder]: Removed 5315 assume(true) statements. [2020-12-22 15:36:09,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:36:09 BoogieIcfgContainer [2020-12-22 15:36:09,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:36:09,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:36:09,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:36:09,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:36:09,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:35:32" (1/3) ... [2020-12-22 15:36:09,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3372d283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:36:09, skipping insertion in model container [2020-12-22 15:36:09,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:35:38" (2/3) ... [2020-12-22 15:36:09,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3372d283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:36:09, skipping insertion in model container [2020-12-22 15:36:09,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:36:09" (3/3) ... [2020-12-22 15:36:09,205 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2020-12-22 15:36:09,212 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:36:09,226 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-12-22 15:36:09,245 INFO L253 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-12-22 15:36:09,302 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:36:09,303 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:36:09,303 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:36:09,303 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:36:09,304 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:36:09,304 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:36:09,304 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:36:09,304 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:36:09,392 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states. [2020-12-22 15:36:09,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-12-22 15:36:09,413 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:09,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:36:09,414 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:09,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:09,421 INFO L82 PathProgramCache]: Analyzing trace with hash 549224019, now seen corresponding path program 1 times [2020-12-22 15:36:09,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:09,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342576998] [2020-12-22 15:36:09,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:10,493 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 15:36:10,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342576998] [2020-12-22 15:36:10,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:10,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:10,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515968544] [2020-12-22 15:36:10,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:36:10,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:10,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:36:10,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:36:10,524 INFO L87 Difference]: Start difference. First operand 5289 states. Second operand 3 states. [2020-12-22 15:36:13,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:13,553 INFO L93 Difference]: Finished difference Result 13136 states and 18162 transitions. [2020-12-22 15:36:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:13,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-12-22 15:36:13,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:13,629 INFO L225 Difference]: With dead ends: 13136 [2020-12-22 15:36:13,629 INFO L226 Difference]: Without dead ends: 7618 [2020-12-22 15:36:13,656 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 15:36:13,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7618 states. [2020-12-22 15:36:14,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7618 to 7574. [2020-12-22 15:36:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7574 states. [2020-12-22 15:36:14,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7574 states to 7574 states and 10146 transitions. [2020-12-22 15:36:14,042 INFO L78 Accepts]: Start accepts. Automaton has 7574 states and 10146 transitions. Word has length 123 [2020-12-22 15:36:14,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:14,045 INFO L481 AbstractCegarLoop]: Abstraction has 7574 states and 10146 transitions. [2020-12-22 15:36:14,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:36:14,045 INFO L276 IsEmpty]: Start isEmpty. Operand 7574 states and 10146 transitions. [2020-12-22 15:36:14,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-12-22 15:36:14,053 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:14,055 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] [2020-12-22 15:36:14,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:36:14,055 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:14,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:14,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1561698784, now seen corresponding path program 1 times [2020-12-22 15:36:14,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:14,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268748065] [2020-12-22 15:36:14,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:14,530 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 15:36:14,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268748065] [2020-12-22 15:36:14,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:14,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:14,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265559343] [2020-12-22 15:36:14,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:36:14,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:14,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:36:14,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:36:14,536 INFO L87 Difference]: Start difference. First operand 7574 states and 10146 transitions. Second operand 3 states. [2020-12-22 15:36:17,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:17,367 INFO L93 Difference]: Finished difference Result 18236 states and 24438 transitions. [2020-12-22 15:36:17,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:17,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-12-22 15:36:17,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:17,437 INFO L225 Difference]: With dead ends: 18236 [2020-12-22 15:36:17,438 INFO L226 Difference]: Without dead ends: 10938 [2020-12-22 15:36:17,460 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 15:36:17,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10938 states. [2020-12-22 15:36:17,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10938 to 10894. [2020-12-22 15:36:17,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10894 states. [2020-12-22 15:36:17,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10894 states to 10894 states and 14566 transitions. [2020-12-22 15:36:17,866 INFO L78 Accepts]: Start accepts. Automaton has 10894 states and 14566 transitions. Word has length 124 [2020-12-22 15:36:17,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:17,876 INFO L481 AbstractCegarLoop]: Abstraction has 10894 states and 14566 transitions. [2020-12-22 15:36:17,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:36:17,877 INFO L276 IsEmpty]: Start isEmpty. Operand 10894 states and 14566 transitions. [2020-12-22 15:36:17,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-12-22 15:36:17,888 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:17,888 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:36:17,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:36:17,889 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:17,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:17,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1898243407, now seen corresponding path program 1 times [2020-12-22 15:36:17,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:17,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616009718] [2020-12-22 15:36:17,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:36:18,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616009718] [2020-12-22 15:36:18,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:18,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:18,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386152455] [2020-12-22 15:36:18,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:36:18,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:18,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:36:18,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:36:18,390 INFO L87 Difference]: Start difference. First operand 10894 states and 14566 transitions. Second operand 3 states. [2020-12-22 15:36:21,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:21,078 INFO L93 Difference]: Finished difference Result 22203 states and 29705 transitions. [2020-12-22 15:36:21,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:21,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-12-22 15:36:21,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:21,170 INFO L225 Difference]: With dead ends: 22203 [2020-12-22 15:36:21,170 INFO L226 Difference]: Without dead ends: 11585 [2020-12-22 15:36:21,200 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 15:36:21,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11585 states. [2020-12-22 15:36:21,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11585 to 11583. [2020-12-22 15:36:21,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11583 states. [2020-12-22 15:36:21,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11583 states to 11583 states and 15442 transitions. [2020-12-22 15:36:21,674 INFO L78 Accepts]: Start accepts. Automaton has 11583 states and 15442 transitions. Word has length 138 [2020-12-22 15:36:21,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:21,675 INFO L481 AbstractCegarLoop]: Abstraction has 11583 states and 15442 transitions. [2020-12-22 15:36:21,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:36:21,675 INFO L276 IsEmpty]: Start isEmpty. Operand 11583 states and 15442 transitions. [2020-12-22 15:36:21,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-12-22 15:36:21,682 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:21,682 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] [2020-12-22 15:36:21,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:36:21,683 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:21,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:21,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1076035440, now seen corresponding path program 1 times [2020-12-22 15:36:21,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:21,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035765743] [2020-12-22 15:36:21,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:22,231 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 15:36:22,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035765743] [2020-12-22 15:36:22,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:22,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:22,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174875394] [2020-12-22 15:36:22,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:36:22,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:22,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:36:22,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:36:22,239 INFO L87 Difference]: Start difference. First operand 11583 states and 15442 transitions. Second operand 3 states. [2020-12-22 15:36:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:25,096 INFO L93 Difference]: Finished difference Result 33205 states and 44472 transitions. [2020-12-22 15:36:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:25,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-12-22 15:36:25,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:25,173 INFO L225 Difference]: With dead ends: 33205 [2020-12-22 15:36:25,174 INFO L226 Difference]: Without dead ends: 21898 [2020-12-22 15:36:25,209 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 15:36:25,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21898 states. [2020-12-22 15:36:25,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21898 to 21786. [2020-12-22 15:36:25,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21786 states. [2020-12-22 15:36:26,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21786 states to 21786 states and 29239 transitions. [2020-12-22 15:36:26,099 INFO L78 Accepts]: Start accepts. Automaton has 21786 states and 29239 transitions. Word has length 145 [2020-12-22 15:36:26,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:26,100 INFO L481 AbstractCegarLoop]: Abstraction has 21786 states and 29239 transitions. [2020-12-22 15:36:26,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:36:26,100 INFO L276 IsEmpty]: Start isEmpty. Operand 21786 states and 29239 transitions. [2020-12-22 15:36:26,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-22 15:36:26,106 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:26,106 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] [2020-12-22 15:36:26,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:36:26,106 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:26,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:26,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1295073280, now seen corresponding path program 1 times [2020-12-22 15:36:26,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:26,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576013862] [2020-12-22 15:36:26,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:26,676 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 15:36:26,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576013862] [2020-12-22 15:36:26,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:26,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:26,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311614322] [2020-12-22 15:36:26,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:36:26,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:26,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:36:26,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:36:26,679 INFO L87 Difference]: Start difference. First operand 21786 states and 29239 transitions. Second operand 3 states. [2020-12-22 15:36:30,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:30,241 INFO L93 Difference]: Finished difference Result 63368 states and 85308 transitions. [2020-12-22 15:36:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:30,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-12-22 15:36:30,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:30,431 INFO L225 Difference]: With dead ends: 63368 [2020-12-22 15:36:30,431 INFO L226 Difference]: Without dead ends: 41858 [2020-12-22 15:36:30,493 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 15:36:30,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41858 states. [2020-12-22 15:36:31,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41858 to 41754. [2020-12-22 15:36:31,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41754 states. [2020-12-22 15:36:32,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41754 states to 41754 states and 56266 transitions. [2020-12-22 15:36:32,088 INFO L78 Accepts]: Start accepts. Automaton has 41754 states and 56266 transitions. Word has length 147 [2020-12-22 15:36:32,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:32,088 INFO L481 AbstractCegarLoop]: Abstraction has 41754 states and 56266 transitions. [2020-12-22 15:36:32,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:36:32,089 INFO L276 IsEmpty]: Start isEmpty. Operand 41754 states and 56266 transitions. [2020-12-22 15:36:32,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-12-22 15:36:32,093 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:32,094 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] [2020-12-22 15:36:32,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:36:32,094 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:32,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:32,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1861881626, now seen corresponding path program 1 times [2020-12-22 15:36:32,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:32,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7337603] [2020-12-22 15:36:32,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:32,741 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 15:36:32,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7337603] [2020-12-22 15:36:32,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:32,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:32,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272810105] [2020-12-22 15:36:32,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:36:32,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:32,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:36:32,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:36:32,744 INFO L87 Difference]: Start difference. First operand 41754 states and 56266 transitions. Second operand 3 states. [2020-12-22 15:36:36,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:36,761 INFO L93 Difference]: Finished difference Result 120960 states and 163443 transitions. [2020-12-22 15:36:36,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:36,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-12-22 15:36:36,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:37,032 INFO L225 Difference]: With dead ends: 120960 [2020-12-22 15:36:37,033 INFO L226 Difference]: Without dead ends: 79482 [2020-12-22 15:36:37,101 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 15:36:37,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79482 states. [2020-12-22 15:36:39,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79482 to 79386. [2020-12-22 15:36:39,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79386 states. [2020-12-22 15:36:39,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79386 states to 79386 states and 107342 transitions. [2020-12-22 15:36:39,818 INFO L78 Accepts]: Start accepts. Automaton has 79386 states and 107342 transitions. Word has length 149 [2020-12-22 15:36:39,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:39,819 INFO L481 AbstractCegarLoop]: Abstraction has 79386 states and 107342 transitions. [2020-12-22 15:36:39,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:36:39,819 INFO L276 IsEmpty]: Start isEmpty. Operand 79386 states and 107342 transitions. [2020-12-22 15:36:39,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-12-22 15:36:39,823 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:39,823 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:36:39,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:36:39,824 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:39,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:39,825 INFO L82 PathProgramCache]: Analyzing trace with hash -2116182261, now seen corresponding path program 1 times [2020-12-22 15:36:39,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:39,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881533970] [2020-12-22 15:36:39,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:40,402 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:36:40,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881533970] [2020-12-22 15:36:40,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:40,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:40,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137640777] [2020-12-22 15:36:40,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:36:40,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:40,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:36:40,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:36:40,404 INFO L87 Difference]: Start difference. First operand 79386 states and 107342 transitions. Second operand 3 states. [2020-12-22 15:36:46,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:46,036 INFO L93 Difference]: Finished difference Result 236838 states and 320532 transitions. [2020-12-22 15:36:46,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:46,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-12-22 15:36:46,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:46,680 INFO L225 Difference]: With dead ends: 236838 [2020-12-22 15:36:46,680 INFO L226 Difference]: Without dead ends: 157776 [2020-12-22 15:36:46,838 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 15:36:47,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157776 states. [2020-12-22 15:36:51,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157776 to 157704. [2020-12-22 15:36:51,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157704 states. [2020-12-22 15:36:51,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157704 states to 157704 states and 213357 transitions. [2020-12-22 15:36:51,960 INFO L78 Accepts]: Start accepts. Automaton has 157704 states and 213357 transitions. Word has length 161 [2020-12-22 15:36:51,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:51,961 INFO L481 AbstractCegarLoop]: Abstraction has 157704 states and 213357 transitions. [2020-12-22 15:36:51,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:36:51,961 INFO L276 IsEmpty]: Start isEmpty. Operand 157704 states and 213357 transitions. [2020-12-22 15:36:51,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-12-22 15:36:51,981 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:51,981 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:36:51,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:36:51,982 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:51,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:51,983 INFO L82 PathProgramCache]: Analyzing trace with hash 2106398477, now seen corresponding path program 1 times [2020-12-22 15:36:51,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:51,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233311611] [2020-12-22 15:36:51,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:52,366 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:36:52,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233311611] [2020-12-22 15:36:52,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:52,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:52,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788561783] [2020-12-22 15:36:52,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:36:52,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:52,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:36:52,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:36:52,369 INFO L87 Difference]: Start difference. First operand 157704 states and 213357 transitions. Second operand 3 states. [2020-12-22 15:36:59,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:59,687 INFO L93 Difference]: Finished difference Result 393506 states and 532594 transitions. [2020-12-22 15:36:59,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:59,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-12-22 15:36:59,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:37:00,306 INFO L225 Difference]: With dead ends: 393506 [2020-12-22 15:37:00,306 INFO L226 Difference]: Without dead ends: 235800 [2020-12-22 15:37:00,752 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 15:37:00,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235800 states. [2020-12-22 15:37:06,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235800 to 235728. [2020-12-22 15:37:06,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235728 states. [2020-12-22 15:37:07,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235728 states to 235728 states and 319036 transitions. [2020-12-22 15:37:07,027 INFO L78 Accepts]: Start accepts. Automaton has 235728 states and 319036 transitions. Word has length 161 [2020-12-22 15:37:07,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:37:07,028 INFO L481 AbstractCegarLoop]: Abstraction has 235728 states and 319036 transitions. [2020-12-22 15:37:07,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:37:07,028 INFO L276 IsEmpty]: Start isEmpty. Operand 235728 states and 319036 transitions. [2020-12-22 15:37:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-12-22 15:37:07,032 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:37:07,032 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:37:07,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:37:07,033 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:37:07,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:37:07,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1524407422, now seen corresponding path program 1 times [2020-12-22 15:37:07,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:37:07,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446292182] [2020-12-22 15:37:07,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:37:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:37:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-22 15:37:07,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446292182] [2020-12-22 15:37:07,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:37:07,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:37:07,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929395210] [2020-12-22 15:37:07,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:37:07,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:37:07,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:37:07,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:37:07,384 INFO L87 Difference]: Start difference. First operand 235728 states and 319036 transitions. Second operand 3 states. [2020-12-22 15:37:16,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:37:16,562 INFO L93 Difference]: Finished difference Result 549362 states and 743600 transitions. [2020-12-22 15:37:16,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:37:16,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-12-22 15:37:16,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:37:17,502 INFO L225 Difference]: With dead ends: 549362 [2020-12-22 15:37:17,502 INFO L226 Difference]: Without dead ends: 313824 [2020-12-22 15:37:17,768 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 15:37:18,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313824 states. [2020-12-22 15:37:24,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313824 to 235728. [2020-12-22 15:37:24,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235728 states. [2020-12-22 15:37:25,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235728 states to 235728 states and 319035 transitions. [2020-12-22 15:37:25,431 INFO L78 Accepts]: Start accepts. Automaton has 235728 states and 319035 transitions. Word has length 177 [2020-12-22 15:37:25,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:37:25,431 INFO L481 AbstractCegarLoop]: Abstraction has 235728 states and 319035 transitions. [2020-12-22 15:37:25,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:37:25,431 INFO L276 IsEmpty]: Start isEmpty. Operand 235728 states and 319035 transitions. [2020-12-22 15:37:25,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-12-22 15:37:25,435 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:37:25,435 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:37:25,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 15:37:25,436 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:37:25,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:37:25,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1452020864, now seen corresponding path program 1 times [2020-12-22 15:37:25,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:37:25,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886090612] [2020-12-22 15:37:25,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:37:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:37:25,778 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-22 15:37:25,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886090612] [2020-12-22 15:37:25,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:37:25,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:37:25,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844084405] [2020-12-22 15:37:25,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:37:25,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:37:25,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:37:25,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:37:25,781 INFO L87 Difference]: Start difference. First operand 235728 states and 319035 transitions. Second operand 3 states. [2020-12-22 15:37:35,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:37:35,913 INFO L93 Difference]: Finished difference Result 543332 states and 734657 transitions. [2020-12-22 15:37:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:37:35,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-12-22 15:37:35,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:37:37,225 INFO L225 Difference]: With dead ends: 543332 [2020-12-22 15:37:37,226 INFO L226 Difference]: Without dead ends: 307928 [2020-12-22 15:37:37,999 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 15:37:38,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307928 states. [2020-12-22 15:37:47,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307928 to 307842. [2020-12-22 15:37:47,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307842 states. [2020-12-22 15:37:48,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307842 states to 307842 states and 415726 transitions. [2020-12-22 15:37:48,929 INFO L78 Accepts]: Start accepts. Automaton has 307842 states and 415726 transitions. Word has length 177 [2020-12-22 15:37:48,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:37:48,930 INFO L481 AbstractCegarLoop]: Abstraction has 307842 states and 415726 transitions. [2020-12-22 15:37:48,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:37:48,930 INFO L276 IsEmpty]: Start isEmpty. Operand 307842 states and 415726 transitions. [2020-12-22 15:37:48,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-12-22 15:37:48,933 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:37:48,933 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:37:48,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 15:37:48,934 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:37:48,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:37:48,934 INFO L82 PathProgramCache]: Analyzing trace with hash 655199635, now seen corresponding path program 1 times [2020-12-22 15:37:48,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:37:48,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272485281] [2020-12-22 15:37:48,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:37:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:37:49,294 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-22 15:37:49,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272485281] [2020-12-22 15:37:49,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:37:49,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:37:49,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218384596] [2020-12-22 15:37:49,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:37:49,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:37:49,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:37:49,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:37:49,298 INFO L87 Difference]: Start difference. First operand 307842 states and 415726 transitions. Second operand 3 states. [2020-12-22 15:38:00,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:38:00,781 INFO L93 Difference]: Finished difference Result 698620 states and 941952 transitions. [2020-12-22 15:38:00,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:38:00,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-12-22 15:38:00,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:38:02,246 INFO L225 Difference]: With dead ends: 698620 [2020-12-22 15:38:02,247 INFO L226 Difference]: Without dead ends: 391102 [2020-12-22 15:38:02,667 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 15:38:03,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391102 states. [2020-12-22 15:38:13,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391102 to 391002. [2020-12-22 15:38:13,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391002 states. [2020-12-22 15:38:14,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391002 states to 391002 states and 526219 transitions. [2020-12-22 15:38:14,842 INFO L78 Accepts]: Start accepts. Automaton has 391002 states and 526219 transitions. Word has length 178 [2020-12-22 15:38:14,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:38:14,843 INFO L481 AbstractCegarLoop]: Abstraction has 391002 states and 526219 transitions. [2020-12-22 15:38:14,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:38:14,843 INFO L276 IsEmpty]: Start isEmpty. Operand 391002 states and 526219 transitions. [2020-12-22 15:38:14,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-12-22 15:38:14,870 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:38:14,871 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-22 15:38:14,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 15:38:14,871 INFO L429 AbstractCegarLoop]: === Iteration 12 === [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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:38:14,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:38:14,872 INFO L82 PathProgramCache]: Analyzing trace with hash 79747424, now seen corresponding path program 1 times [2020-12-22 15:38:14,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:38:14,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722911727] [2020-12-22 15:38:14,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:38:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:38:15,261 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-22 15:38:15,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722911727] [2020-12-22 15:38:15,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:38:15,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:38:15,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314185499] [2020-12-22 15:38:15,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:38:15,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:38:15,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:38:15,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:38:15,263 INFO L87 Difference]: Start difference. First operand 391002 states and 526219 transitions. Second operand 3 states. [2020-12-22 15:38:32,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:38:32,153 INFO L93 Difference]: Finished difference Result 866150 states and 1164579 transitions. [2020-12-22 15:38:32,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:38:32,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-12-22 15:38:32,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted.