/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/forester-heap/sll-buckets-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 03:58:14,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 03:58:14,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 03:58:14,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 03:58:14,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 03:58:14,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 03:58:14,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 03:58:14,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 03:58:14,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 03:58:14,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 03:58:14,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 03:58:14,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 03:58:14,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 03:58:14,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 03:58:14,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 03:58:14,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 03:58:14,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 03:58:14,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 03:58:14,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 03:58:14,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 03:58:14,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 03:58:14,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 03:58:14,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 03:58:14,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 03:58:14,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 03:58:14,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 03:58:14,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 03:58:14,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 03:58:14,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 03:58:14,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 03:58:14,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 03:58:14,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 03:58:14,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 03:58:14,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 03:58:14,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 03:58:14,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 03:58:14,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 03:58:14,305 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 03:58:14,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 03:58:14,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 03:58:14,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 03:58:14,308 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 03:58:14,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 03:58:14,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 03:58:14,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 03:58:14,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 03:58:14,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 03:58:14,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 03:58:14,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 03:58:14,310 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 03:58:14,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 03:58:14,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 03:58:14,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 03:58:14,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 03:58:14,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 03:58:14,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 03:58:14,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 03:58:14,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 03:58:14,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 03:58:14,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 03:58:14,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 03:58:14,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 03:58:14,313 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 03:58:14,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 03:58:14,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 03:58:14,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 03:58:14,757 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 03:58:14,758 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 03:58:14,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-buckets-2.i [2020-12-22 03:58:14,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aed686f4/a8c1df07c1c943a5bfd014b691bd52b3/FLAG5ae6645bb [2020-12-22 03:58:15,527 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 03:58:15,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-buckets-2.i [2020-12-22 03:58:15,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aed686f4/a8c1df07c1c943a5bfd014b691bd52b3/FLAG5ae6645bb [2020-12-22 03:58:15,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aed686f4/a8c1df07c1c943a5bfd014b691bd52b3 [2020-12-22 03:58:15,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 03:58:15,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 03:58:15,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 03:58:15,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 03:58:15,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 03:58:15,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:58:15" (1/1) ... [2020-12-22 03:58:15,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@249e3fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:15, skipping insertion in model container [2020-12-22 03:58:15,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:58:15" (1/1) ... [2020-12-22 03:58:15,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 03:58:15,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 03:58:16,317 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/forester-heap/sll-buckets-2.i[22663,22676] [2020-12-22 03:58:16,329 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-buckets-2.i[22734,22747] [2020-12-22 03:58:16,333 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/forester-heap/sll-buckets-2.i[22862,22875] [2020-12-22 03:58:16,342 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/forester-heap/sll-buckets-2.i[23275,23288] [2020-12-22 03:58:16,346 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/forester-heap/sll-buckets-2.i[23364,23377] [2020-12-22 03:58:16,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:58:16,367 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 03:58:16,412 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/forester-heap/sll-buckets-2.i[22663,22676] [2020-12-22 03:58:16,413 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/forester-heap/sll-buckets-2.i[22734,22747] [2020-12-22 03:58:16,414 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/forester-heap/sll-buckets-2.i[22862,22875] [2020-12-22 03:58:16,419 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/forester-heap/sll-buckets-2.i[23275,23288] [2020-12-22 03:58:16,420 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/forester-heap/sll-buckets-2.i[23364,23377] [2020-12-22 03:58:16,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:58:16,507 INFO L208 MainTranslator]: Completed translation [2020-12-22 03:58:16,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:16 WrapperNode [2020-12-22 03:58:16,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 03:58:16,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 03:58:16,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 03:58:16,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 03:58:16,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:16" (1/1) ... [2020-12-22 03:58:16,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:16" (1/1) ... [2020-12-22 03:58:16,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 03:58:16,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 03:58:16,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 03:58:16,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 03:58:16,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:16" (1/1) ... [2020-12-22 03:58:16,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:16" (1/1) ... [2020-12-22 03:58:16,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:16" (1/1) ... [2020-12-22 03:58:16,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:16" (1/1) ... [2020-12-22 03:58:16,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:16" (1/1) ... [2020-12-22 03:58:16,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:16" (1/1) ... [2020-12-22 03:58:16,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:16" (1/1) ... [2020-12-22 03:58:16,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 03:58:16,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 03:58:16,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 03:58:16,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 03:58:16,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:16" (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 03:58:16,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 03:58:16,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 03:58:16,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 03:58:16,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 03:58:16,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 03:58:16,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 03:58:16,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 03:58:16,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 03:58:16,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 03:58:16,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 03:58:17,595 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 03:58:17,596 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2020-12-22 03:58:17,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:58:17 BoogieIcfgContainer [2020-12-22 03:58:17,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 03:58:17,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 03:58:17,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 03:58:17,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 03:58:17,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:58:15" (1/3) ... [2020-12-22 03:58:17,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a15f6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:58:17, skipping insertion in model container [2020-12-22 03:58:17,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:58:16" (2/3) ... [2020-12-22 03:58:17,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a15f6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:58:17, skipping insertion in model container [2020-12-22 03:58:17,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:58:17" (3/3) ... [2020-12-22 03:58:17,608 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-buckets-2.i [2020-12-22 03:58:17,615 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 03:58:17,621 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-12-22 03:58:17,642 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-22 03:58:17,671 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 03:58:17,671 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 03:58:17,672 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 03:58:17,672 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 03:58:17,672 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 03:58:17,672 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 03:58:17,672 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 03:58:17,672 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 03:58:17,690 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-12-22 03:58:17,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 03:58:17,696 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:58:17,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:58:17,698 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:58:17,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:58:17,705 INFO L82 PathProgramCache]: Analyzing trace with hash 179510098, now seen corresponding path program 1 times [2020-12-22 03:58:17,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:58:17,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415812111] [2020-12-22 03:58:17,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:58:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:58:18,038 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 03:58:18,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415812111] [2020-12-22 03:58:18,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 03:58:18,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 03:58:18,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509545629] [2020-12-22 03:58:18,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 03:58:18,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:58:18,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 03:58:18,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 03:58:18,072 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 4 states. [2020-12-22 03:58:18,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:58:18,244 INFO L93 Difference]: Finished difference Result 112 states and 188 transitions. [2020-12-22 03:58:18,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 03:58:18,247 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-22 03:58:18,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:58:18,257 INFO L225 Difference]: With dead ends: 112 [2020-12-22 03:58:18,258 INFO L226 Difference]: Without dead ends: 66 [2020-12-22 03:58:18,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 03:58:18,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-22 03:58:18,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 41. [2020-12-22 03:58:18,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-22 03:58:18,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-12-22 03:58:18,302 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 8 [2020-12-22 03:58:18,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:58:18,302 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-12-22 03:58:18,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 03:58:18,303 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-12-22 03:58:18,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 03:58:18,303 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:58:18,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:58:18,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 03:58:18,304 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:58:18,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:58:18,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1306111283, now seen corresponding path program 1 times [2020-12-22 03:58:18,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:58:18,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524680350] [2020-12-22 03:58:18,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:58:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:58:18,385 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 03:58:18,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524680350] [2020-12-22 03:58:18,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 03:58:18,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 03:58:18,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118717536] [2020-12-22 03:58:18,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 03:58:18,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:58:18,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 03:58:18,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 03:58:18,391 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 3 states. [2020-12-22 03:58:18,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:58:18,456 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2020-12-22 03:58:18,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 03:58:18,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 03:58:18,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:58:18,461 INFO L225 Difference]: With dead ends: 45 [2020-12-22 03:58:18,462 INFO L226 Difference]: Without dead ends: 43 [2020-12-22 03:58:18,463 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 03:58:18,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-22 03:58:18,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2020-12-22 03:58:18,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-22 03:58:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2020-12-22 03:58:18,478 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 9 [2020-12-22 03:58:18,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:58:18,479 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2020-12-22 03:58:18,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 03:58:18,479 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2020-12-22 03:58:18,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 03:58:18,481 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:58:18,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:58:18,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 03:58:18,483 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:58:18,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:58:18,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1834780084, now seen corresponding path program 1 times [2020-12-22 03:58:18,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:58:18,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336846003] [2020-12-22 03:58:18,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:58:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:58:18,748 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 03:58:18,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336846003] [2020-12-22 03:58:18,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 03:58:18,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 03:58:18,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420003835] [2020-12-22 03:58:18,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 03:58:18,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:58:18,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 03:58:18,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 03:58:18,752 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand 5 states. [2020-12-22 03:58:18,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:58:18,986 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2020-12-22 03:58:18,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 03:58:18,987 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 03:58:18,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:58:18,990 INFO L225 Difference]: With dead ends: 60 [2020-12-22 03:58:18,990 INFO L226 Difference]: Without dead ends: 49 [2020-12-22 03:58:18,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 03:58:18,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-12-22 03:58:18,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2020-12-22 03:58:18,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-22 03:58:19,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2020-12-22 03:58:19,001 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 10 [2020-12-22 03:58:19,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:58:19,001 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2020-12-22 03:58:19,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 03:58:19,001 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-12-22 03:58:19,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 03:58:19,002 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:58:19,002 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:58:19,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 03:58:19,003 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:58:19,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:58:19,004 INFO L82 PathProgramCache]: Analyzing trace with hash 710639734, now seen corresponding path program 1 times [2020-12-22 03:58:19,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:58:19,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953223970] [2020-12-22 03:58:19,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:58:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:58:19,099 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 03:58:19,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953223970] [2020-12-22 03:58:19,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 03:58:19,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 03:58:19,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029855783] [2020-12-22 03:58:19,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 03:58:19,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:58:19,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 03:58:19,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 03:58:19,104 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 3 states. [2020-12-22 03:58:19,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:58:19,179 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2020-12-22 03:58:19,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 03:58:19,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 03:58:19,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:58:19,181 INFO L225 Difference]: With dead ends: 45 [2020-12-22 03:58:19,181 INFO L226 Difference]: Without dead ends: 43 [2020-12-22 03:58:19,183 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 03:58:19,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-22 03:58:19,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2020-12-22 03:58:19,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-22 03:58:19,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2020-12-22 03:58:19,200 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 10 [2020-12-22 03:58:19,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:58:19,201 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2020-12-22 03:58:19,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 03:58:19,202 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2020-12-22 03:58:19,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 03:58:19,203 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:58:19,204 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:58:19,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 03:58:19,204 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:58:19,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:58:19,205 INFO L82 PathProgramCache]: Analyzing trace with hash 625501225, now seen corresponding path program 1 times [2020-12-22 03:58:19,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:58:19,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272126592] [2020-12-22 03:58:19,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:58:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:58:19,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:58:19,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272126592] [2020-12-22 03:58:19,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362191463] [2020-12-22 03:58:19,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 03:58:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:58:19,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-22 03:58:19,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 03:58:19,942 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:19,943 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2020-12-22 03:58:19,954 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:20,215 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 03:58:20,216 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:20,225 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_35|, |v_#memory_$Pointer$.offset_36|, |v_#memory_$Pointer$.base_37|, |v_#memory_$Pointer$.base_36|], 1=[|v_#memory_$Pointer$.offset_37|, |v_#memory_$Pointer$.base_35|]} [2020-12-22 03:58:20,236 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:20,424 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-22 03:58:20,425 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:20,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:20,507 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17 [2020-12-22 03:58:20,511 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:20,653 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-22 03:58:20,654 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:20,664 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:20,764 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:20,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:20,809 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17 [2020-12-22 03:58:20,811 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:20,863 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:20,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:20,879 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 58 [2020-12-22 03:58:20,882 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:20,934 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:20,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:20,947 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 58 [2020-12-22 03:58:20,950 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:21,073 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-12-22 03:58:21,075 INFO L625 ElimStorePlain]: treesize reduction 4, result has 96.7 percent of original size [2020-12-22 03:58:21,080 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 6 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:58:21,080 INFO L244 ElimStorePlain]: Needed 8 recursive calls to eliminate 9 variables, input treesize:211, output treesize:154 [2020-12-22 03:58:21,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:21,225 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 03:58:21,328 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-12-22 03:58:21,330 INFO L348 Elim1Store]: treesize reduction 8, result has 91.6 percent of original size [2020-12-22 03:58:21,330 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 142 treesize of output 171 [2020-12-22 03:58:21,341 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:21,437 INFO L625 ElimStorePlain]: treesize reduction 8, result has 95.4 percent of original size [2020-12-22 03:58:21,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:21,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:21,448 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 03:58:21,450 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 87 [2020-12-22 03:58:21,456 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:21,493 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:21,495 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:58:21,496 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:176, output treesize:154 [2020-12-22 03:58:21,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:21,639 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 03:58:21,709 INFO L348 Elim1Store]: treesize reduction 16, result has 76.5 percent of original size [2020-12-22 03:58:21,710 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 171 treesize of output 126 [2020-12-22 03:58:21,724 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:21,726 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:21,728 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 03:58:21,736 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 03:58:21,739 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 03:58:21,741 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 03:58:21,743 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 03:58:21,746 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 03:58:21,747 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 03:58:21,749 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 03:58:21,753 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 03:58:21,756 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 03:58:21,762 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:21,767 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 03:58:21,773 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 03:58:21,782 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 03:58:21,785 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 03:58:21,791 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 03:58:21,802 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 03:58:21,812 INFO L547 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:21,841 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:21,857 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:21,858 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 43 [2020-12-22 03:58:21,863 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:21,876 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:21,880 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:58:21,880 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:189, output treesize:7 [2020-12-22 03:58:21,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:58:21,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 03:58:21,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2020-12-22 03:58:21,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585351295] [2020-12-22 03:58:21,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 03:58:21,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:58:21,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 03:58:21,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-12-22 03:58:21,914 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 10 states. [2020-12-22 03:58:22,160 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-12-22 03:58:22,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:58:22,374 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2020-12-22 03:58:22,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 03:58:22,375 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-12-22 03:58:22,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:58:22,376 INFO L225 Difference]: With dead ends: 66 [2020-12-22 03:58:22,376 INFO L226 Difference]: Without dead ends: 55 [2020-12-22 03:58:22,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-12-22 03:58:22,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-12-22 03:58:22,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2020-12-22 03:58:22,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-22 03:58:22,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2020-12-22 03:58:22,384 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 15 [2020-12-22 03:58:22,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:58:22,385 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2020-12-22 03:58:22,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 03:58:22,385 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2020-12-22 03:58:22,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 03:58:22,386 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:58:22,386 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:58:22,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 03:58:22,601 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:58:22,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:58:22,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1157082046, now seen corresponding path program 1 times [2020-12-22 03:58:22,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:58:22,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425119755] [2020-12-22 03:58:22,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:58:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:58:22,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:58:22,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425119755] [2020-12-22 03:58:22,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133405007] [2020-12-22 03:58:22,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 03:58:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:58:22,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-22 03:58:22,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 03:58:23,013 INFO L348 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2020-12-22 03:58:23,014 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 42 [2020-12-22 03:58:23,017 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:23,150 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-12-22 03:58:23,150 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:23,153 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_41|], 4=[|v_#memory_$Pointer$.base_42|], 6=[|v_#memory_$Pointer$.base_40|]} [2020-12-22 03:58:23,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:23,186 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 17 [2020-12-22 03:58:23,188 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:23,247 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:23,252 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:23,295 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:23,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:23,346 INFO L348 Elim1Store]: treesize reduction 96, result has 22.6 percent of original size [2020-12-22 03:58:23,346 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 64 [2020-12-22 03:58:23,349 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:23,386 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:23,432 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:23,432 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:145, output treesize:129 [2020-12-22 03:58:23,537 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:23,538 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2020-12-22 03:58:23,541 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 03:58:23,542 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 03:58:23,545 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 03:58:23,548 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:23,582 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:23,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:24,040 WARN L197 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-12-22 03:58:24,041 INFO L348 Elim1Store]: treesize reduction 20, result has 93.9 percent of original size [2020-12-22 03:58:24,042 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 130 treesize of output 374 [2020-12-22 03:58:24,057 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 13 disjuncts [2020-12-22 03:58:24,059 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 13 disjuncts [2020-12-22 03:58:24,061 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:58:24,062 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-22 03:58:24,063 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:58:24,065 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:24,066 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:24,067 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:24,069 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 03:58:24,070 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:24,073 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:24,075 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:24,076 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:24,078 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 03:58:24,079 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:24,082 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 03:58:24,083 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:24,085 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:58:24,086 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 03:58:24,087 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:24,090 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:58:24,092 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:24,093 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:24,094 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:24,096 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 03:58:24,097 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:24,100 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 03:58:24,101 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:24,102 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:58:24,104 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 03:58:24,105 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:24,108 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:24,110 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:24,111 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:24,112 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 03:58:24,114 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:24,118 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:58:24,120 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-22 03:58:24,122 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:58:24,123 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:24,124 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:24,125 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:24,126 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 03:58:24,127 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:24,131 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 03:58:24,132 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:24,133 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:58:24,135 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 03:58:24,136 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:24,139 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:24,140 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:24,142 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:24,143 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 03:58:24,144 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:24,148 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:58:24,149 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-22 03:58:24,151 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:58:24,152 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:58:24,153 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:24,154 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:24,156 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:24,157 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 03:58:24,158 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:24,161 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:24,162 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:24,163 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:58:24,164 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 03:58:24,166 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:24,175 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:58:24,230 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:24,234 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:24,234 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:145, output treesize:133 [2020-12-22 03:58:24,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:24,741 WARN L197 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 103 [2020-12-22 03:58:24,742 INFO L348 Elim1Store]: treesize reduction 202, result has 55.5 percent of original size [2020-12-22 03:58:24,743 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 23 case distinctions, treesize of input 145 treesize of output 313 [2020-12-22 03:58:24,756 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 13 disjuncts [2020-12-22 03:58:24,758 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:58:24,759 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 03:58:24,760 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:58:24,761 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:24,762 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:58:24,763 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:24,764 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:58:24,765 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:24,766 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:24,770 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 03:58:24,771 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:58:24,773 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:24,774 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:58:24,775 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:24,776 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:58:24,777 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:24,778 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:24,788 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:58:24,817 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:24,825 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:24,825 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:152, output treesize:133 [2020-12-22 03:58:25,415 WARN L197 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2020-12-22 03:58:25,417 INFO L348 Elim1Store]: treesize reduction 20, result has 91.4 percent of original size [2020-12-22 03:58:25,418 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 131 treesize of output 261 [2020-12-22 03:58:25,428 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:58:25,429 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:58:25,430 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:25,431 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:25,432 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 03:58:25,433 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 03:58:25,435 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:25,436 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 03:58:25,437 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 03:58:25,439 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:58:25,441 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:25,441 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:25,442 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 03:58:25,443 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 03:58:25,445 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:25,446 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 03:58:25,447 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-22 03:58:25,456 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:25,463 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:25,465 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:58:25,465 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:135, output treesize:4 [2020-12-22 03:58:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:58:25,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 03:58:25,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 10 [2020-12-22 03:58:25,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638117105] [2020-12-22 03:58:25,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 03:58:25,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:58:25,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 03:58:25,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-22 03:58:25,480 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand 10 states. [2020-12-22 03:58:34,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:58:34,772 INFO L93 Difference]: Finished difference Result 160 states and 199 transitions. [2020-12-22 03:58:34,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 03:58:34,773 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-12-22 03:58:34,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:58:34,775 INFO L225 Difference]: With dead ends: 160 [2020-12-22 03:58:34,775 INFO L226 Difference]: Without dead ends: 158 [2020-12-22 03:58:34,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2020-12-22 03:58:34,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-12-22 03:58:34,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 76. [2020-12-22 03:58:34,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-12-22 03:58:34,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 93 transitions. [2020-12-22 03:58:34,788 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 93 transitions. Word has length 16 [2020-12-22 03:58:34,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:58:34,789 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 93 transitions. [2020-12-22 03:58:34,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 03:58:34,789 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2020-12-22 03:58:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 03:58:34,790 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:58:34,790 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:58:35,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 03:58:35,006 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:58:35,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:58:35,006 INFO L82 PathProgramCache]: Analyzing trace with hash 442135079, now seen corresponding path program 2 times [2020-12-22 03:58:35,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:58:35,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501790388] [2020-12-22 03:58:35,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:58:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:58:35,193 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:58:35,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501790388] [2020-12-22 03:58:35,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456032831] [2020-12-22 03:58:35,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 03:58:35,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 03:58:35,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 03:58:35,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 39 conjunts are in the unsatisfiable core [2020-12-22 03:58:35,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 03:58:35,621 INFO L348 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2020-12-22 03:58:35,622 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 42 [2020-12-22 03:58:35,626 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:35,787 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 03:58:35,788 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:35,795 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_int_36|, |v_#memory_int_38|], 2=[|v_#memory_int_33|, |v_#memory_int_37|], 4=[|v_#memory_int_34|, |v_#memory_int_35|]} [2020-12-22 03:58:35,804 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:35,896 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:35,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:35,919 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2020-12-22 03:58:35,922 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:35,989 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:36,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:36,010 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-12-22 03:58:36,012 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:36,058 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:36,063 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:36,098 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:36,115 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2020-12-22 03:58:36,117 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:36,186 INFO L625 ElimStorePlain]: treesize reduction 4, result has 94.9 percent of original size [2020-12-22 03:58:36,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:36,194 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 03:58:36,245 INFO L348 Elim1Store]: treesize reduction 82, result has 24.8 percent of original size [2020-12-22 03:58:36,246 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 59 [2020-12-22 03:58:36,259 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:36,319 INFO L625 ElimStorePlain]: treesize reduction 4, result has 94.4 percent of original size [2020-12-22 03:58:36,327 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 6 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:36,327 INFO L244 ElimStorePlain]: Needed 8 recursive calls to eliminate 10 variables, input treesize:146, output treesize:52 [2020-12-22 03:58:36,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:36,424 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:36,425 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 37 [2020-12-22 03:58:36,427 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 03:58:36,429 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 03:58:36,430 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 03:58:36,432 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:36,455 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:36,466 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 03:58:36,470 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:36,471 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43 [2020-12-22 03:58:36,473 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:36,510 INFO L625 ElimStorePlain]: treesize reduction 18, result has 73.1 percent of original size [2020-12-22 03:58:36,514 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:36,515 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:72, output treesize:49 [2020-12-22 03:58:36,570 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 03:58:36,575 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:36,576 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 52 [2020-12-22 03:58:36,578 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:36,644 INFO L625 ElimStorePlain]: treesize reduction 4, result has 93.5 percent of original size [2020-12-22 03:58:36,648 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:36,649 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:62, output treesize:58 [2020-12-22 03:58:36,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 03:58:36,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 03:58:36,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2020-12-22 03:58:36,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332069170] [2020-12-22 03:58:36,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 03:58:36,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:58:36,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 03:58:36,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-12-22 03:58:36,900 INFO L87 Difference]: Start difference. First operand 76 states and 93 transitions. Second operand 7 states. [2020-12-22 03:58:41,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:58:41,454 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2020-12-22 03:58:41,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 03:58:41,455 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-12-22 03:58:41,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:58:41,456 INFO L225 Difference]: With dead ends: 142 [2020-12-22 03:58:41,456 INFO L226 Difference]: Without dead ends: 107 [2020-12-22 03:58:41,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-12-22 03:58:41,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-22 03:58:41,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 83. [2020-12-22 03:58:41,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-12-22 03:58:41,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 100 transitions. [2020-12-22 03:58:41,468 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 100 transitions. Word has length 18 [2020-12-22 03:58:41,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:58:41,468 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 100 transitions. [2020-12-22 03:58:41,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 03:58:41,469 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2020-12-22 03:58:41,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 03:58:41,469 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:58:41,470 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:58:41,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 03:58:41,683 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:58:41,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:58:41,684 INFO L82 PathProgramCache]: Analyzing trace with hash -482453053, now seen corresponding path program 1 times [2020-12-22 03:58:41,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:58:41,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505666631] [2020-12-22 03:58:41,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:58:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:58:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:58:41,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505666631] [2020-12-22 03:58:41,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506871336] [2020-12-22 03:58:41,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 03:58:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:58:41,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 37 conjunts are in the unsatisfiable core [2020-12-22 03:58:41,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 03:58:42,772 INFO L244 Elim1Store]: Index analysis took 371 ms [2020-12-22 03:58:42,808 INFO L348 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2020-12-22 03:58:42,809 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 42 [2020-12-22 03:58:42,814 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:43,497 WARN L197 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-12-22 03:58:43,497 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:43,499 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_41|, |v_#memory_$Pointer$.base_46|], 4=[|v_#memory_$Pointer$.offset_40|, |v_#memory_$Pointer$.base_47|], 6=[|v_#memory_$Pointer$.offset_42|, |v_#memory_$Pointer$.base_45|]} [2020-12-22 03:58:43,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:43,717 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 17 [2020-12-22 03:58:43,718 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:44,127 WARN L197 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-12-22 03:58:44,127 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:44,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:44,195 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 17 [2020-12-22 03:58:44,196 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:44,322 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-12-22 03:58:44,322 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:44,335 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:44,441 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 03:58:44,441 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:44,450 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:44,531 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:44,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:44,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:44,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:44,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:44,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:44,547 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 64 [2020-12-22 03:58:44,549 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:44,623 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:44,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:44,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:44,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:44,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:44,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:44,636 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 64 [2020-12-22 03:58:44,638 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:44,705 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:44,712 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 6 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:44,713 INFO L244 ElimStorePlain]: Needed 8 recursive calls to eliminate 12 variables, input treesize:251, output treesize:227 [2020-12-22 03:58:44,836 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:44,836 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 53 [2020-12-22 03:58:44,839 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 03:58:44,840 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 03:58:44,840 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 03:58:44,843 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:44,906 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:44,908 INFO L443 ElimStorePlain]: Different costs {30=[|v_#memory_$Pointer$.offset_43|], 42=[|v_#memory_$Pointer$.base_48|]} [2020-12-22 03:58:44,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:45,121 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-12-22 03:58:45,122 INFO L348 Elim1Store]: treesize reduction 10, result has 94.2 percent of original size [2020-12-22 03:58:45,122 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 203 treesize of output 320 [2020-12-22 03:58:45,140 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:45,198 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:45,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:45,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:45,739 WARN L197 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2020-12-22 03:58:45,740 INFO L348 Elim1Store]: treesize reduction 10, result has 97.4 percent of original size [2020-12-22 03:58:45,740 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 219 treesize of output 467 [2020-12-22 03:58:45,754 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-22 03:58:45,756 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-22 03:58:45,757 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 14 disjuncts [2020-12-22 03:58:45,758 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 13 disjuncts [2020-12-22 03:58:45,764 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 03:58:45,765 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:58:45,766 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:58:45,767 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-22 03:58:45,768 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 03:58:45,769 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:58:45,773 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-22 03:58:45,774 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:58:45,775 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:58:45,776 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:58:45,785 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:58:45,838 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:45,840 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:45,841 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:254, output treesize:238 [2020-12-22 03:58:45,940 INFO L443 ElimStorePlain]: Different costs {42=[|v_#memory_$Pointer$.offset_44|], 56=[|v_#memory_$Pointer$.base_49|]} [2020-12-22 03:58:45,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:45,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:46,169 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2020-12-22 03:58:46,170 INFO L348 Elim1Store]: treesize reduction 62, result has 71.4 percent of original size [2020-12-22 03:58:46,171 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 11 case distinctions, treesize of input 218 treesize of output 317 [2020-12-22 03:58:46,193 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:46,262 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:46,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:46,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:46,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:58:46,829 WARN L197 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 120 [2020-12-22 03:58:46,830 INFO L348 Elim1Store]: treesize reduction 130, result has 73.1 percent of original size [2020-12-22 03:58:46,831 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 234 treesize of output 450 [2020-12-22 03:58:46,843 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 19 disjuncts [2020-12-22 03:58:46,844 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 18 disjuncts [2020-12-22 03:58:46,845 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2020-12-22 03:58:46,846 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-22 03:58:46,847 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-22 03:58:46,848 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-22 03:58:46,849 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-22 03:58:46,850 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 13 disjuncts [2020-12-22 03:58:46,851 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:58:46,852 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-22 03:58:46,853 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:58:46,854 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:58:46,855 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:46,857 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:58:46,858 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-22 03:58:46,859 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:58:46,860 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:58:46,861 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:58:46,873 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:58:46,930 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:46,935 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:46,936 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:276, output treesize:238 [2020-12-22 03:58:47,316 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-12-22 03:58:47,316 INFO L348 Elim1Store]: treesize reduction 10, result has 91.9 percent of original size [2020-12-22 03:58:47,317 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 204 treesize of output 244 [2020-12-22 03:58:47,322 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:47,355 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:47,361 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-22 03:58:47,361 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:245, output treesize:139 [2020-12-22 03:58:47,796 WARN L197 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2020-12-22 03:58:47,796 INFO L348 Elim1Store]: treesize reduction 20, result has 91.4 percent of original size [2020-12-22 03:58:47,797 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 139 treesize of output 261 [2020-12-22 03:58:47,806 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-22 03:58:47,807 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:58:47,807 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:58:47,808 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:58:47,809 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:47,810 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:47,810 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 03:58:47,811 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 03:58:47,814 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:58:47,814 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:58:47,815 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:47,816 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:47,816 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 03:58:47,817 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 03:58:47,820 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:58:47,821 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:58:47,822 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:58:47,822 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:47,823 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:47,824 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 03:58:47,824 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 03:58:47,827 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:58:47,828 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:58:47,829 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:58:47,829 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-22 03:58:47,830 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-22 03:58:47,831 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 03:58:47,845 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:58:47,853 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:58:47,854 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:58:47,854 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:143, output treesize:4 [2020-12-22 03:58:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:58:47,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 03:58:47,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-12-22 03:58:47,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721113249] [2020-12-22 03:58:47,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 03:58:47,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:58:47,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 03:58:47,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-12-22 03:58:47,869 INFO L87 Difference]: Start difference. First operand 83 states and 100 transitions. Second operand 13 states. [2020-12-22 03:58:53,025 WARN L197 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-12-22 03:58:53,339 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-12-22 03:58:58,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:58:58,424 INFO L93 Difference]: Finished difference Result 161 states and 203 transitions. [2020-12-22 03:58:58,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 03:58:58,425 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2020-12-22 03:58:58,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:58:58,426 INFO L225 Difference]: With dead ends: 161 [2020-12-22 03:58:58,427 INFO L226 Difference]: Without dead ends: 159 [2020-12-22 03:58:58,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2020-12-22 03:58:58,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-12-22 03:58:58,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 85. [2020-12-22 03:58:58,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-12-22 03:58:58,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 103 transitions. [2020-12-22 03:58:58,458 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 103 transitions. Word has length 19 [2020-12-22 03:58:58,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:58:58,458 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 103 transitions. [2020-12-22 03:58:58,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 03:58:58,458 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 103 transitions. [2020-12-22 03:58:58,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 03:58:58,460 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:58:58,460 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:58:58,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 03:58:58,661 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:58:58,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:58:58,662 INFO L82 PathProgramCache]: Analyzing trace with hash 220535656, now seen corresponding path program 2 times [2020-12-22 03:58:58,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:58:58,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235889336] [2020-12-22 03:58:58,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:58:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:58:58,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 03:58:58,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235889336] [2020-12-22 03:58:58,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029434589] [2020-12-22 03:58:58,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 03:58:59,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 03:58:59,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 03:58:59,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 55 conjunts are in the unsatisfiable core [2020-12-22 03:58:59,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 03:58:59,887 INFO L244 Elim1Store]: Index analysis took 197 ms [2020-12-22 03:58:59,927 INFO L348 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2020-12-22 03:58:59,928 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 42 [2020-12-22 03:58:59,931 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:00,657 WARN L197 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-12-22 03:59:00,658 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:00,663 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_52|, |v_#memory_int_41|, |v_#memory_int_42|, |v_#memory_int_43|, |v_#memory_int_44|, |v_#memory_$Pointer$.offset_46|, |v_#memory_$Pointer$.base_51|, |v_#memory_$Pointer$.offset_45|], 1=[|v_#memory_$Pointer$.base_50|, |v_#memory_$Pointer$.offset_47|]} [2020-12-22 03:59:00,673 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:59:01,517 WARN L197 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-22 03:59:01,518 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:01,622 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2020-12-22 03:59:01,623 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:02,122 WARN L197 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-12-22 03:59:02,123 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:02,135 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:59:02,573 WARN L197 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-12-22 03:59:02,573 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:02,710 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 25 [2020-12-22 03:59:02,711 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:03,409 WARN L197 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-12-22 03:59:03,410 INFO L625 ElimStorePlain]: treesize reduction 4, result has 98.3 percent of original size [2020-12-22 03:59:03,469 INFO L348 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2020-12-22 03:59:03,470 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 43 [2020-12-22 03:59:03,472 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:04,004 WARN L197 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-12-22 03:59:04,005 INFO L625 ElimStorePlain]: treesize reduction 4, result has 98.2 percent of original size [2020-12-22 03:59:04,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:04,063 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17 [2020-12-22 03:59:04,064 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:04,209 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-22 03:59:04,210 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:04,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:04,251 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17 [2020-12-22 03:59:04,252 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:04,337 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:04,342 INFO L547 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:59:04,434 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:04,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:04,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:04,446 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 58 [2020-12-22 03:59:04,449 INFO L547 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:04,587 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-12-22 03:59:04,588 INFO L625 ElimStorePlain]: treesize reduction 4, result has 97.4 percent of original size [2020-12-22 03:59:04,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:04,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:04,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:04,600 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 58 [2020-12-22 03:59:04,602 INFO L547 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:04,675 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:04,678 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 10 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:59:04,678 INFO L244 ElimStorePlain]: Needed 12 recursive calls to eliminate 13 variables, input treesize:285, output treesize:187 [2020-12-22 03:59:04,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:04,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:04,819 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:04,820 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2020-12-22 03:59:04,822 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 03:59:04,823 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 03:59:04,824 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 03:59:04,826 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:04,906 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:04,911 INFO L443 ElimStorePlain]: Different costs {5=[|v_#memory_int_45|], 32=[|v_#memory_$Pointer$.base_53|, |v_#memory_$Pointer$.offset_48|]} [2020-12-22 03:59:04,935 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:04,936 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 53 [2020-12-22 03:59:04,937 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:05,083 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-12-22 03:59:05,084 INFO L625 ElimStorePlain]: treesize reduction 40, result has 83.7 percent of original size [2020-12-22 03:59:05,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:05,096 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 03:59:05,207 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-22 03:59:05,208 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:05,208 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 172 treesize of output 268 [2020-12-22 03:59:05,218 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-22 03:59:05,219 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 03:59:05,219 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 03:59:05,223 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 03:59:05,224 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:59:05,224 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 03:59:05,229 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 03:59:05,230 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:59:05,231 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:59:05,239 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:59:05,369 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2020-12-22 03:59:05,369 INFO L625 ElimStorePlain]: treesize reduction 52, result has 79.5 percent of original size [2020-12-22 03:59:05,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:05,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:05,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:05,380 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 94 [2020-12-22 03:59:05,382 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:05,436 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:05,438 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:59:05,439 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:229, output treesize:198 [2020-12-22 03:59:05,560 INFO L443 ElimStorePlain]: Different costs {5=[|v_#memory_int_46|], 46=[|v_#memory_$Pointer$.base_54|, |v_#memory_$Pointer$.offset_49|]} [2020-12-22 03:59:05,575 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:05,575 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 62 [2020-12-22 03:59:05,577 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:05,756 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-12-22 03:59:05,757 INFO L625 ElimStorePlain]: treesize reduction 40, result has 86.0 percent of original size [2020-12-22 03:59:05,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:05,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:05,773 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 03:59:06,041 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2020-12-22 03:59:06,042 INFO L348 Elim1Store]: treesize reduction 96, result has 63.2 percent of original size [2020-12-22 03:59:06,042 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 187 treesize of output 263 [2020-12-22 03:59:06,049 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 03:59:06,050 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-22 03:59:06,051 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 03:59:06,052 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 03:59:06,053 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 03:59:06,054 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:59:06,054 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:59:06,055 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:59:06,061 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:59:06,227 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2020-12-22 03:59:06,227 INFO L625 ElimStorePlain]: treesize reduction 52, result has 81.3 percent of original size [2020-12-22 03:59:06,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:06,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:06,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:06,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:06,239 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 97 [2020-12-22 03:59:06,242 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:06,307 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:06,308 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:59:06,308 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:249, output treesize:207 [2020-12-22 03:59:06,624 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:06,625 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 173 treesize of output 175 [2020-12-22 03:59:06,630 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 03:59:06,631 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 03:59:06,632 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 03:59:06,632 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-22 03:59:06,635 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 03:59:06,636 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 03:59:06,637 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:59:06,725 INFO L625 ElimStorePlain]: treesize reduction 12, result has 89.3 percent of original size [2020-12-22 03:59:06,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:06,731 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 25 [2020-12-22 03:59:06,735 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:06,754 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:06,755 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:59:06,756 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:214, output treesize:35 [2020-12-22 03:59:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 03:59:06,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 03:59:06,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-12-22 03:59:06,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597441513] [2020-12-22 03:59:06,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-22 03:59:06,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:59:06,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-22 03:59:06,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-12-22 03:59:06,867 INFO L87 Difference]: Start difference. First operand 85 states and 103 transitions. Second operand 14 states. [2020-12-22 03:59:07,577 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2020-12-22 03:59:08,117 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-22 03:59:08,426 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2020-12-22 03:59:08,686 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-12-22 03:59:09,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:59:09,744 INFO L93 Difference]: Finished difference Result 233 states and 290 transitions. [2020-12-22 03:59:09,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 03:59:09,745 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2020-12-22 03:59:09,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:59:09,747 INFO L225 Difference]: With dead ends: 233 [2020-12-22 03:59:09,747 INFO L226 Difference]: Without dead ends: 198 [2020-12-22 03:59:09,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2020-12-22 03:59:09,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-12-22 03:59:09,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 128. [2020-12-22 03:59:09,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-12-22 03:59:09,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 157 transitions. [2020-12-22 03:59:09,764 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 157 transitions. Word has length 21 [2020-12-22 03:59:09,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:59:09,764 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 157 transitions. [2020-12-22 03:59:09,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-22 03:59:09,765 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 157 transitions. [2020-12-22 03:59:09,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 03:59:09,767 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:59:09,767 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:59:09,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 03:59:09,981 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:59:09,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:59:09,981 INFO L82 PathProgramCache]: Analyzing trace with hash -800532698, now seen corresponding path program 1 times [2020-12-22 03:59:09,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:59:09,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730292012] [2020-12-22 03:59:09,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:59:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:59:10,195 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:59:10,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730292012] [2020-12-22 03:59:10,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743178330] [2020-12-22 03:59:10,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 03:59:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:59:10,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 51 conjunts are in the unsatisfiable core [2020-12-22 03:59:10,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 03:59:10,965 INFO L244 Elim1Store]: Index analysis took 320 ms [2020-12-22 03:59:11,006 INFO L348 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2020-12-22 03:59:11,006 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 42 [2020-12-22 03:59:11,009 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:12,003 WARN L197 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-22 03:59:12,003 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:12,006 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_51|, |v_#memory_$Pointer$.offset_50|, |v_#memory_int_47|, |v_#memory_int_48|, |v_#memory_$Pointer$.base_57|, |v_#memory_$Pointer$.base_56|], 6=[|v_#memory_$Pointer$.base_55|, |v_#memory_$Pointer$.offset_52|]} [2020-12-22 03:59:12,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:12,188 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 17 [2020-12-22 03:59:12,189 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:12,624 WARN L197 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-12-22 03:59:12,624 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:12,633 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:59:12,954 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-22 03:59:12,954 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:13,011 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2020-12-22 03:59:13,017 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:13,302 WARN L197 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-22 03:59:13,302 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:13,317 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-12-22 03:59:13,317 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:13,548 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-22 03:59:13,549 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:13,557 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:59:13,706 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-22 03:59:13,706 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:13,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:13,745 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 17 [2020-12-22 03:59:13,746 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:13,819 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:13,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:13,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:13,834 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 60 [2020-12-22 03:59:13,836 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:13,917 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:13,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:13,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:13,926 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 60 [2020-12-22 03:59:13,927 INFO L547 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:13,989 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:13,991 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 8 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:59:13,992 INFO L244 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:268, output treesize:241 [2020-12-22 03:59:14,133 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:14,133 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 53 [2020-12-22 03:59:14,135 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 03:59:14,135 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 03:59:14,136 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 03:59:14,139 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:14,226 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:14,228 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_int_49|], 40=[|v_#memory_$Pointer$.offset_53|, |v_#memory_$Pointer$.base_58|]} [2020-12-22 03:59:14,236 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2020-12-22 03:59:14,237 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:14,312 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:14,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:14,321 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 03:59:14,410 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:14,411 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 217 treesize of output 328 [2020-12-22 03:59:14,423 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:14,498 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:14,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:14,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:14,518 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 03:59:14,736 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-22 03:59:14,737 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:14,737 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 233 treesize of output 427 [2020-12-22 03:59:14,745 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-22 03:59:14,746 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-22 03:59:14,746 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-22 03:59:14,747 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-22 03:59:14,748 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 14 disjuncts [2020-12-22 03:59:14,748 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 03:59:14,749 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:59:14,750 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 03:59:14,751 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:59:14,751 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:59:14,753 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:59:14,755 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 03:59:14,756 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:59:14,757 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 03:59:14,757 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:59:14,758 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:59:14,769 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:59:14,839 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:14,841 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:59:14,841 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:283, output treesize:252 [2020-12-22 03:59:14,977 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_int_50|], 54=[|v_#memory_$Pointer$.offset_54|, |v_#memory_$Pointer$.base_59|]} [2020-12-22 03:59:14,983 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2020-12-22 03:59:14,984 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:15,085 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:15,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:15,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:15,096 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 03:59:15,296 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-12-22 03:59:15,297 INFO L348 Elim1Store]: treesize reduction 48, result has 75.4 percent of original size [2020-12-22 03:59:15,297 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 232 treesize of output 327 [2020-12-22 03:59:15,304 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:15,387 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:15,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:15,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:15,399 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-22 03:59:15,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:15,859 WARN L197 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 107 [2020-12-22 03:59:15,860 INFO L348 Elim1Store]: treesize reduction 116, result has 72.3 percent of original size [2020-12-22 03:59:15,860 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 248 treesize of output 412 [2020-12-22 03:59:15,869 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2020-12-22 03:59:15,870 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-22 03:59:15,871 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-22 03:59:15,872 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-22 03:59:15,873 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 13 disjuncts [2020-12-22 03:59:15,874 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:59:15,875 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-22 03:59:15,876 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 03:59:15,877 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 03:59:15,877 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:59:15,881 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 15 disjuncts [2020-12-22 03:59:15,882 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-22 03:59:15,883 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-22 03:59:15,884 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 13 disjuncts [2020-12-22 03:59:15,884 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:59:15,885 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-22 03:59:15,886 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 03:59:15,887 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-22 03:59:15,888 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:59:15,894 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:59:15,953 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:15,955 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:59:15,955 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:303, output treesize:261 [2020-12-22 03:59:16,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-22 03:59:16,454 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-22 03:59:16,455 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:16,455 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 257 treesize of output 311 [2020-12-22 03:59:16,463 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-22 03:59:16,464 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:59:16,465 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-22 03:59:16,466 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:59:16,466 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:59:16,467 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:59:16,468 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 03:59:16,470 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2020-12-22 03:59:16,471 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-12-22 03:59:16,471 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2020-12-22 03:59:16,472 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-22 03:59:16,473 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-22 03:59:16,473 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 03:59:16,479 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 03:59:16,517 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:16,527 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:16,528 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 38 [2020-12-22 03:59:16,532 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:16,550 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:16,551 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:59:16,552 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:284, output treesize:24 [2020-12-22 03:59:16,596 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2020-12-22 03:59:16,598 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 03:59:16,604 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 03:59:16,605 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 03:59:16,605 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:37, output treesize:7 [2020-12-22 03:59:16,647 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:59:16,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 03:59:16,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-12-22 03:59:16,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147639980] [2020-12-22 03:59:16,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 03:59:16,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:59:16,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 03:59:16,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-12-22 03:59:16,649 INFO L87 Difference]: Start difference. First operand 128 states and 157 transitions. Second operand 16 states. [2020-12-22 03:59:17,295 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2020-12-22 03:59:17,882 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-22 03:59:18,132 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-12-22 03:59:18,295 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-22 03:59:18,576 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-12-22 03:59:19,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:59:19,101 INFO L93 Difference]: Finished difference Result 200 states and 249 transitions. [2020-12-22 03:59:19,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 03:59:19,101 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-12-22 03:59:19,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:59:19,106 INFO L225 Difference]: With dead ends: 200 [2020-12-22 03:59:19,106 INFO L226 Difference]: Without dead ends: 165 [2020-12-22 03:59:19,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2020-12-22 03:59:19,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-12-22 03:59:19,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 128. [2020-12-22 03:59:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-12-22 03:59:19,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 157 transitions. [2020-12-22 03:59:19,134 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 157 transitions. Word has length 21 [2020-12-22 03:59:19,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:59:19,137 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 157 transitions. [2020-12-22 03:59:19,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 03:59:19,137 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 157 transitions. [2020-12-22 03:59:19,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 03:59:19,143 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:59:19,144 INFO L422 BasicCegarLoop]: trace histogram [2, 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 03:59:19,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 03:59:19,358 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:59:19,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:59:19,359 INFO L82 PathProgramCache]: Analyzing trace with hash -962615628, now seen corresponding path program 1 times [2020-12-22 03:59:19,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:59:19,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15159811] [2020-12-22 03:59:19,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:59:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:59:19,395 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:59:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:59:19,427 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:59:19,455 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 03:59:19,455 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 03:59:19,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 03:59:19,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 03:59:19 BoogieIcfgContainer [2020-12-22 03:59:19,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 03:59:19,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 03:59:19,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 03:59:19,498 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 03:59:19,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:58:17" (3/4) ... [2020-12-22 03:59:19,501 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 03:59:19,558 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/forester-heap/sll-buckets-2.i-witness.graphml [2020-12-22 03:59:19,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 03:59:19,559 INFO L168 Benchmark]: Toolchain (without parser) took 63723.99 ms. Allocated memory was 164.6 MB in the beginning and 264.2 MB in the end (delta: 99.6 MB). Free memory was 138.5 MB in the beginning and 187.3 MB in the end (delta: -48.8 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. [2020-12-22 03:59:19,559 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 164.6 MB. Free memory is still 135.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:59:19,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.96 ms. Allocated memory is still 164.6 MB. Free memory was 138.3 MB in the beginning and 115.6 MB in the end (delta: 22.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:59:19,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.04 ms. Allocated memory is still 164.6 MB. Free memory was 115.3 MB in the beginning and 113.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:59:19,560 INFO L168 Benchmark]: Boogie Preprocessor took 104.41 ms. Allocated memory is still 164.6 MB. Free memory was 113.3 MB in the beginning and 147.9 MB in the end (delta: -34.6 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:59:19,561 INFO L168 Benchmark]: RCFGBuilder took 864.35 ms. Allocated memory is still 164.6 MB. Free memory was 147.9 MB in the beginning and 116.3 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2020-12-22 03:59:19,561 INFO L168 Benchmark]: TraceAbstraction took 61897.88 ms. Allocated memory was 164.6 MB in the beginning and 264.2 MB in the end (delta: 99.6 MB). Free memory was 115.8 MB in the beginning and 190.5 MB in the end (delta: -74.7 MB). Peak memory consumption was 25.4 MB. Max. memory is 8.0 GB. [2020-12-22 03:59:19,561 INFO L168 Benchmark]: Witness Printer took 60.28 ms. Allocated memory is still 264.2 MB. Free memory was 190.5 MB in the beginning and 187.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:59:19,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 164.6 MB. Free memory is still 135.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 669.96 ms. Allocated memory is still 164.6 MB. Free memory was 138.3 MB in the beginning and 115.6 MB in the end (delta: 22.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 111.04 ms. Allocated memory is still 164.6 MB. Free memory was 115.3 MB in the beginning and 113.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 104.41 ms. Allocated memory is still 164.6 MB. Free memory was 113.3 MB in the beginning and 147.9 MB in the end (delta: -34.6 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 864.35 ms. Allocated memory is still 164.6 MB. Free memory was 147.9 MB in the beginning and 116.3 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 61897.88 ms. Allocated memory was 164.6 MB in the beginning and 264.2 MB in the end (delta: 99.6 MB). Free memory was 115.8 MB in the beginning and 190.5 MB in the end (delta: -74.7 MB). Peak memory consumption was 25.4 MB. Max. memory is 8.0 GB. * Witness Printer took 60.28 ms. Allocated memory is still 264.2 MB. Free memory was 190.5 MB in the beginning and 187.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1061]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1004] BCK* bucket = malloc(sizeof(BCK)); [L1005] bucket->data = 0 [L1006] bucket->list = ((void*)0) [L1008] bucket->next = malloc(sizeof(BCK)) [L1009] EXPR bucket->next [L1009] BCK* bcki = bucket->next; [L1010] bcki->data = 1 [L1011] bcki->list = ((void*)0) [L1013] bcki->next = malloc(sizeof(BCK)) [L1014] EXPR bcki->next [L1014] bcki = bcki->next [L1015] bcki->data = 2 [L1016] bcki->list = ((void*)0) [L1017] bcki->next = ((void*)0) [L1019] struct TSLL* item = ((void*)0); [L1020] struct TSLL* itr = ((void*)0); [L1021] COND TRUE __VERIFIER_nondet_int() [L1023] item = malloc(sizeof(SLL)) [L1024] item->next = ((void*)0) [L1025] COND TRUE __VERIFIER_nondet_int() [L1026] item->data = 0 [L1032] bcki = bucket [L1034] COND FALSE !(!(bcki != ((void*)0))) [L1035] COND FALSE !(!(item != ((void*)0))) [L1036] EXPR bcki->data [L1036] EXPR item->data [L1036] COND FALSE !(bcki->data != item->data) [L1038] COND FALSE !(!(bcki != ((void*)0))) [L1040] EXPR bcki->list [L1040] COND TRUE bcki->list == ((void*)0) [L1041] bcki->list = item [L1021] COND FALSE !(__VERIFIER_nondet_int()) [L1052] bcki = bucket [L1053] COND TRUE bcki != ((void*)0) [L1055] EXPR bcki->list [L1055] item = bcki->list [L1056] bcki->list = ((void*)0) [L1057] COND TRUE item != ((void*)0) [L1059] itr = item [L1060] EXPR item->next [L1060] item = item->next [L1061] EXPR itr->data [L1061] EXPR bcki->data [L1061] COND TRUE !(itr->data != bcki->data) [L1061] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 61.7s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 30.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 351 SDtfs, 1166 SDslu, 1344 SDs, 0 SdLazy, 1987 SolverSat, 246 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 25.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 93 SyntacticMatches, 3 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 325 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 27.5s InterpolantComputationTime, 281 NumberOfCodeBlocks, 281 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 241 ConstructedInterpolants, 38 QuantifiedInterpolants, 251319 SizeOfPredicates, 86 NumberOfNonLiveVariables, 835 ConjunctsInSsa, 249 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 38/80 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...