./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label16.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label16.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a6f24d554e4b30b3999a30b27ffc0d435c2602d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 20:45:11,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 20:45:11,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 20:45:11,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 20:45:11,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 20:45:11,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 20:45:11,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 20:45:11,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 20:45:11,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 20:45:11,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 20:45:11,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 20:45:11,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 20:45:11,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 20:45:11,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 20:45:11,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 20:45:11,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 20:45:11,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 20:45:11,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 20:45:11,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 20:45:11,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 20:45:11,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 20:45:11,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 20:45:11,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 20:45:11,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 20:45:11,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 20:45:11,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 20:45:11,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 20:45:11,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 20:45:11,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 20:45:11,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 20:45:11,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 20:45:11,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 20:45:11,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 20:45:11,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 20:45:11,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 20:45:11,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 20:45:11,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 20:45:11,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 20:45:11,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 20:45:11,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 20:45:11,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 20:45:11,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 20:45:11,598 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 20:45:11,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 20:45:11,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 20:45:11,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 20:45:11,604 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 20:45:11,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 20:45:11,604 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 20:45:11,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 20:45:11,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 20:45:11,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 20:45:11,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 20:45:11,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 20:45:11,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 20:45:11,607 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 20:45:11,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 20:45:11,608 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 20:45:11,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 20:45:11,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 20:45:11,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 20:45:11,609 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 20:45:11,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 20:45:11,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:45:11,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 20:45:11,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 20:45:11,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 20:45:11,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 20:45:11,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 20:45:11,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 20:45:11,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 20:45:11,611 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a6f24d554e4b30b3999a30b27ffc0d435c2602d [2020-10-25 20:45:12,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 20:45:12,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 20:45:12,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 20:45:12,083 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 20:45:12,085 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 20:45:12,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label16.c [2020-10-25 20:45:12,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1160850f/955c9af590904f69be007b45d5b7d127/FLAG6ee07cf56 [2020-10-25 20:45:12,956 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 20:45:12,962 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label16.c [2020-10-25 20:45:12,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1160850f/955c9af590904f69be007b45d5b7d127/FLAG6ee07cf56 [2020-10-25 20:45:13,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1160850f/955c9af590904f69be007b45d5b7d127 [2020-10-25 20:45:13,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 20:45:13,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 20:45:13,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 20:45:13,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 20:45:13,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 20:45:13,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:45:13" (1/1) ... [2020-10-25 20:45:13,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a3edbbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13, skipping insertion in model container [2020-10-25 20:45:13,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:45:13" (1/1) ... [2020-10-25 20:45:13,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 20:45:13,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 20:45:13,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:45:13,825 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 20:45:13,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:45:13,970 INFO L208 MainTranslator]: Completed translation [2020-10-25 20:45:13,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13 WrapperNode [2020-10-25 20:45:13,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 20:45:13,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 20:45:13,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 20:45:13,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 20:45:13,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13" (1/1) ... [2020-10-25 20:45:14,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13" (1/1) ... [2020-10-25 20:45:14,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 20:45:14,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 20:45:14,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 20:45:14,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 20:45:14,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13" (1/1) ... [2020-10-25 20:45:14,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13" (1/1) ... [2020-10-25 20:45:14,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13" (1/1) ... [2020-10-25 20:45:14,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13" (1/1) ... [2020-10-25 20:45:14,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13" (1/1) ... [2020-10-25 20:45:14,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13" (1/1) ... [2020-10-25 20:45:14,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13" (1/1) ... [2020-10-25 20:45:14,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 20:45:14,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 20:45:14,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 20:45:14,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 20:45:14,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13" (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 [2020-10-25 20:45:14,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 20:45:14,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 20:45:14,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 20:45:14,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 20:45:16,012 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 20:45:16,012 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 20:45:16,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:45:16 BoogieIcfgContainer [2020-10-25 20:45:16,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 20:45:16,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 20:45:16,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 20:45:16,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 20:45:16,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 08:45:13" (1/3) ... [2020-10-25 20:45:16,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e241cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:45:16, skipping insertion in model container [2020-10-25 20:45:16,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13" (2/3) ... [2020-10-25 20:45:16,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e241cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:45:16, skipping insertion in model container [2020-10-25 20:45:16,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:45:16" (3/3) ... [2020-10-25 20:45:16,025 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label16.c [2020-10-25 20:45:16,037 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 20:45:16,042 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 20:45:16,056 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 20:45:16,086 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 20:45:16,086 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 20:45:16,086 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 20:45:16,087 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 20:45:16,087 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 20:45:16,087 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 20:45:16,087 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 20:45:16,087 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 20:45:16,112 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-25 20:45:16,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-25 20:45:16,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:16,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:16,125 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:16,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:16,132 INFO L82 PathProgramCache]: Analyzing trace with hash 291089130, now seen corresponding path program 1 times [2020-10-25 20:45:16,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:16,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843021344] [2020-10-25 20:45:16,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:45:16,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843021344] [2020-10-25 20:45:16,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:16,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:45:16,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761722164] [2020-10-25 20:45:16,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:16,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:16,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:16,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:16,487 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-10-25 20:45:17,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:17,851 INFO L93 Difference]: Finished difference Result 686 states and 1217 transitions. [2020-10-25 20:45:17,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:17,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-25 20:45:17,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:17,871 INFO L225 Difference]: With dead ends: 686 [2020-10-25 20:45:17,871 INFO L226 Difference]: Without dead ends: 360 [2020-10-25 20:45:17,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:17,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-25 20:45:17,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-10-25 20:45:17,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-25 20:45:17,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2020-10-25 20:45:17,950 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 46 [2020-10-25 20:45:17,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:17,950 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2020-10-25 20:45:17,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:17,951 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2020-10-25 20:45:17,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-25 20:45:17,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:17,956 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:17,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 20:45:17,957 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:17,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:17,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1332472033, now seen corresponding path program 1 times [2020-10-25 20:45:17,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:17,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764083928] [2020-10-25 20:45:17,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:18,307 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:45:18,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764083928] [2020-10-25 20:45:18,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:18,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:45:18,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199496076] [2020-10-25 20:45:18,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:45:18,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:18,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:45:18,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:45:18,312 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 4 states. [2020-10-25 20:45:20,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:20,060 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2020-10-25 20:45:20,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:45:20,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 125 [2020-10-25 20:45:20,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:20,065 INFO L225 Difference]: With dead ends: 1074 [2020-10-25 20:45:20,066 INFO L226 Difference]: Without dead ends: 716 [2020-10-25 20:45:20,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:45:20,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-25 20:45:20,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-10-25 20:45:20,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-10-25 20:45:20,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2020-10-25 20:45:20,117 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 125 [2020-10-25 20:45:20,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:20,119 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2020-10-25 20:45:20,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:45:20,120 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2020-10-25 20:45:20,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-25 20:45:20,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:20,132 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:20,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 20:45:20,133 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:20,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:20,134 INFO L82 PathProgramCache]: Analyzing trace with hash 31802846, now seen corresponding path program 1 times [2020-10-25 20:45:20,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:20,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719760223] [2020-10-25 20:45:20,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:20,476 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:45:20,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719760223] [2020-10-25 20:45:20,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419558477] [2020-10-25 20:45:20,477 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 [2020-10-25 20:45:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:20,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:45:20,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:45:20,747 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:45:20,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:45:20,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-25 20:45:20,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178837004] [2020-10-25 20:45:20,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:20,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:20,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:20,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:45:20,756 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand 3 states. [2020-10-25 20:45:21,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:21,947 INFO L93 Difference]: Finished difference Result 1964 states and 2499 transitions. [2020-10-25 20:45:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:21,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2020-10-25 20:45:21,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:21,963 INFO L225 Difference]: With dead ends: 1964 [2020-10-25 20:45:21,966 INFO L226 Difference]: Without dead ends: 1250 [2020-10-25 20:45:21,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:45:21,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-10-25 20:45:22,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-10-25 20:45:22,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-10-25 20:45:22,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2020-10-25 20:45:22,006 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 151 [2020-10-25 20:45:22,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:22,007 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2020-10-25 20:45:22,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:22,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2020-10-25 20:45:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-25 20:45:22,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:22,013 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:22,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-25 20:45:22,227 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:22,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:22,228 INFO L82 PathProgramCache]: Analyzing trace with hash 289729523, now seen corresponding path program 1 times [2020-10-25 20:45:22,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:22,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221558311] [2020-10-25 20:45:22,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:22,524 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-25 20:45:22,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221558311] [2020-10-25 20:45:22,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:22,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:45:22,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479247696] [2020-10-25 20:45:22,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:45:22,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:22,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:45:22,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:45:22,533 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand 4 states. [2020-10-25 20:45:23,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:23,811 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2020-10-25 20:45:23,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:45:23,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 205 [2020-10-25 20:45:23,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:23,820 INFO L225 Difference]: With dead ends: 2705 [2020-10-25 20:45:23,820 INFO L226 Difference]: Without dead ends: 1606 [2020-10-25 20:45:23,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:45:23,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-10-25 20:45:23,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-10-25 20:45:23,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-10-25 20:45:23,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2020-10-25 20:45:23,859 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 205 [2020-10-25 20:45:23,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:23,859 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2020-10-25 20:45:23,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:45:23,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2020-10-25 20:45:23,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-10-25 20:45:23,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:23,866 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:23,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 20:45:23,866 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:23,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:23,867 INFO L82 PathProgramCache]: Analyzing trace with hash 282915776, now seen corresponding path program 1 times [2020-10-25 20:45:23,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:23,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281800153] [2020-10-25 20:45:23,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:24,400 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 179 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-25 20:45:24,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281800153] [2020-10-25 20:45:24,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872313145] [2020-10-25 20:45:24,401 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 [2020-10-25 20:45:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:24,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:45:24,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:45:24,794 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-25 20:45:24,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:45:24,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-10-25 20:45:24,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172558956] [2020-10-25 20:45:24,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:24,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:24,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:24,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:45:24,804 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand 3 states. [2020-10-25 20:45:25,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:25,750 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2020-10-25 20:45:25,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:25,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 332 [2020-10-25 20:45:25,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:25,762 INFO L225 Difference]: With dead ends: 3388 [2020-10-25 20:45:25,762 INFO L226 Difference]: Without dead ends: 1962 [2020-10-25 20:45:25,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:45:25,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-10-25 20:45:25,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2020-10-25 20:45:25,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-10-25 20:45:25,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2018 transitions. [2020-10-25 20:45:25,804 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2018 transitions. Word has length 332 [2020-10-25 20:45:25,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:25,805 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 2018 transitions. [2020-10-25 20:45:25,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:25,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2018 transitions. [2020-10-25 20:45:25,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-10-25 20:45:25,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:25,812 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:26,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:45:26,027 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:26,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:26,029 INFO L82 PathProgramCache]: Analyzing trace with hash -649782730, now seen corresponding path program 1 times [2020-10-25 20:45:26,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:26,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301214367] [2020-10-25 20:45:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:26,806 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 262 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:45:26,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301214367] [2020-10-25 20:45:26,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706191369] [2020-10-25 20:45:26,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-25 20:45:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:27,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:45:27,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:45:27,164 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-10-25 20:45:27,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:45:27,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-25 20:45:27,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189034487] [2020-10-25 20:45:27,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:27,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:27,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:27,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:45:27,170 INFO L87 Difference]: Start difference. First operand 1784 states and 2018 transitions. Second operand 3 states. [2020-10-25 20:45:28,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:28,044 INFO L93 Difference]: Finished difference Result 2320 states and 2616 transitions. [2020-10-25 20:45:28,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:28,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 336 [2020-10-25 20:45:28,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:28,058 INFO L225 Difference]: With dead ends: 2320 [2020-10-25 20:45:28,059 INFO L226 Difference]: Without dead ends: 2318 [2020-10-25 20:45:28,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:45:28,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-10-25 20:45:28,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1962. [2020-10-25 20:45:28,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-10-25 20:45:28,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2232 transitions. [2020-10-25 20:45:28,117 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2232 transitions. Word has length 336 [2020-10-25 20:45:28,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:28,118 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2232 transitions. [2020-10-25 20:45:28,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:28,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2232 transitions. [2020-10-25 20:45:28,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2020-10-25 20:45:28,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:28,128 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:28,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:45:28,343 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:28,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:28,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1039277736, now seen corresponding path program 1 times [2020-10-25 20:45:28,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:28,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475588853] [2020-10-25 20:45:28,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:29,175 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 599 proven. 130 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-25 20:45:29,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475588853] [2020-10-25 20:45:29,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325579208] [2020-10-25 20:45:29,176 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 [2020-10-25 20:45:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:29,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:45:29,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:45:29,533 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2020-10-25 20:45:29,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:45:29,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-25 20:45:29,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822897073] [2020-10-25 20:45:29,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:29,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:29,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:29,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:45:29,536 INFO L87 Difference]: Start difference. First operand 1962 states and 2232 transitions. Second operand 3 states. [2020-10-25 20:45:30,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:30,460 INFO L93 Difference]: Finished difference Result 4456 states and 5168 transitions. [2020-10-25 20:45:30,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:30,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 460 [2020-10-25 20:45:30,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:30,477 INFO L225 Difference]: With dead ends: 4456 [2020-10-25 20:45:30,477 INFO L226 Difference]: Without dead ends: 2674 [2020-10-25 20:45:30,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:45:30,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-10-25 20:45:30,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2318. [2020-10-25 20:45:30,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2020-10-25 20:45:30,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2678 transitions. [2020-10-25 20:45:30,532 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2678 transitions. Word has length 460 [2020-10-25 20:45:30,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:30,533 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2678 transitions. [2020-10-25 20:45:30,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:30,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2678 transitions. [2020-10-25 20:45:30,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2020-10-25 20:45:30,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:30,546 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:30,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:45:30,759 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:30,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:30,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1583661625, now seen corresponding path program 1 times [2020-10-25 20:45:30,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:30,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309093426] [2020-10-25 20:45:30,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:31,485 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 633 proven. 130 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-25 20:45:31,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309093426] [2020-10-25 20:45:31,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845818739] [2020-10-25 20:45:31,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-25 20:45:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:31,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:45:31,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:45:31,860 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2020-10-25 20:45:31,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:45:31,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-25 20:45:31,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550250298] [2020-10-25 20:45:31,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:31,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:31,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:31,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:45:31,862 INFO L87 Difference]: Start difference. First operand 2318 states and 2678 transitions. Second operand 3 states. [2020-10-25 20:45:32,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:32,947 INFO L93 Difference]: Finished difference Result 5344 states and 6268 transitions. [2020-10-25 20:45:32,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:32,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 530 [2020-10-25 20:45:32,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:32,949 INFO L225 Difference]: With dead ends: 5344 [2020-10-25 20:45:32,950 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 20:45:32,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:45:32,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 20:45:32,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 20:45:32,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 20:45:32,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 20:45:32,957 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 530 [2020-10-25 20:45:32,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:32,957 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 20:45:32,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:32,957 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 20:45:32,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 20:45:33,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:45:33,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 20:45:33,306 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-25 20:45:33,306 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-25 20:45:33,306 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-25 20:45:33,307 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-25 20:45:33,307 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-25 20:45:33,307 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-25 20:45:33,307 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-25 20:45:33,307 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,307 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,307 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,307 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-25 20:45:33,308 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-25 20:45:33,308 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-25 20:45:33,308 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-25 20:45:33,312 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-25 20:45:33,312 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-25 20:45:33,312 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-25 20:45:33,312 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-25 20:45:33,313 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,313 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,313 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,313 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-25 20:45:33,313 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-25 20:45:33,313 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-25 20:45:33,313 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-25 20:45:33,313 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-25 20:45:33,313 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-25 20:45:33,314 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-25 20:45:33,314 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-25 20:45:33,314 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,314 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,314 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,314 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-25 20:45:33,314 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-25 20:45:33,314 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-25 20:45:33,314 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-25 20:45:33,315 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-25 20:45:33,315 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-25 20:45:33,315 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-25 20:45:33,315 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-25 20:45:33,317 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-25 20:45:33,317 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,317 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,317 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,317 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-25 20:45:33,317 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-25 20:45:33,317 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-25 20:45:33,317 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-25 20:45:33,317 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-25 20:45:33,318 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-25 20:45:33,318 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-25 20:45:33,318 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,320 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,320 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,321 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-25 20:45:33,321 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-25 20:45:33,321 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-25 20:45:33,321 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-25 20:45:33,321 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-25 20:45:33,321 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-25 20:45:33,321 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-25 20:45:33,321 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-25 20:45:33,321 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-25 20:45:33,321 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,322 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,322 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,322 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-25 20:45:33,322 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-25 20:45:33,322 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-25 20:45:33,322 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-25 20:45:33,322 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-25 20:45:33,322 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-25 20:45:33,322 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-25 20:45:33,323 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-25 20:45:33,323 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,323 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,323 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,323 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-25 20:45:33,323 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-25 20:45:33,323 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-25 20:45:33,323 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-25 20:45:33,323 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-25 20:45:33,323 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-25 20:45:33,324 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 20:45:33,324 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-25 20:45:33,324 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-25 20:45:33,324 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,324 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,324 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,324 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-25 20:45:33,324 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-25 20:45:33,324 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-25 20:45:33,325 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-25 20:45:33,325 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-25 20:45:33,325 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-25 20:45:33,325 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-25 20:45:33,325 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-25 20:45:33,325 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,325 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,325 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,325 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-25 20:45:33,326 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-25 20:45:33,326 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-25 20:45:33,326 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-25 20:45:33,330 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-25 20:45:33,330 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-25 20:45:33,330 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-25 20:45:33,330 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-25 20:45:33,330 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,331 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,331 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,331 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 20:45:33,331 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 20:45:33,331 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-25 20:45:33,331 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-25 20:45:33,331 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-25 20:45:33,331 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-25 20:45:33,332 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-25 20:45:33,332 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-25 20:45:33,332 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-25 20:45:33,332 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-25 20:45:33,332 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,332 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,332 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,332 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-25 20:45:33,332 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-25 20:45:33,332 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-25 20:45:33,333 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-25 20:45:33,333 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-25 20:45:33,333 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-25 20:45:33,333 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 20:45:33,333 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-25 20:45:33,333 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-25 20:45:33,333 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,333 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,334 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,334 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-25 20:45:33,334 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-25 20:45:33,334 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-25 20:45:33,334 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-25 20:45:33,334 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-25 20:45:33,334 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-25 20:45:33,334 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-25 20:45:33,334 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-25 20:45:33,335 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,335 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,335 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-25 20:45:33,335 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-25 20:45:33,335 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-25 20:45:33,335 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-25 20:45:33,335 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-25 20:45:33,335 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-25 20:45:33,335 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-25 20:45:33,335 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-25 20:45:33,336 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,336 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,336 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-25 20:45:33,336 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-25 20:45:33,336 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-25 20:45:33,336 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-25 20:45:33,336 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-25 20:45:33,336 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-25 20:45:33,336 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,336 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,337 INFO L270 CegarLoopResult]: At program point L873(lines 22 874) the Hoare annotation is: (or (<= ~a21~0 7) (<= 6 ~a15~0) (<= 10 ~a21~0) (<= ~a12~0 80)) [2020-10-25 20:45:33,337 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-25 20:45:33,337 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-25 20:45:33,337 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-25 20:45:33,337 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-25 20:45:33,337 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-25 20:45:33,338 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-25 20:45:33,338 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-25 20:45:33,338 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-25 20:45:33,338 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,338 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,338 INFO L277 CegarLoopResult]: At program point L876(lines 876 892) the Hoare annotation is: true [2020-10-25 20:45:33,338 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-25 20:45:33,338 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-25 20:45:33,338 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-25 20:45:33,338 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-25 20:45:33,339 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-25 20:45:33,339 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-25 20:45:33,339 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-25 20:45:33,339 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 20:45:33,339 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,339 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,339 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-25 20:45:33,339 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-25 20:45:33,339 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-25 20:45:33,339 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-25 20:45:33,340 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-25 20:45:33,340 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-25 20:45:33,340 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,340 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,340 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-25 20:45:33,340 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,340 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-25 20:45:33,342 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (or (<= ~a21~0 7) (<= 6 ~a15~0) (<= 10 ~a21~0) (<= ~a12~0 80)) [2020-10-25 20:45:33,342 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-25 20:45:33,342 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-25 20:45:33,342 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-25 20:45:33,342 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-25 20:45:33,342 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-25 20:45:33,342 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-25 20:45:33,342 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-25 20:45:33,343 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-25 20:45:33,343 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-25 20:45:33,343 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,343 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,343 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,343 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-25 20:45:33,343 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-25 20:45:33,343 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-25 20:45:33,343 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-25 20:45:33,343 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-25 20:45:33,344 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 20:45:33,344 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-25 20:45:33,344 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-25 20:45:33,344 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-25 20:45:33,344 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-25 20:45:33,344 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,344 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,344 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,344 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-25 20:45:33,344 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-25 20:45:33,345 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-25 20:45:33,345 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-25 20:45:33,345 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-25 20:45:33,345 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-25 20:45:33,345 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-25 20:45:33,345 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-25 20:45:33,345 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,345 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,345 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,345 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-25 20:45:33,346 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-25 20:45:33,346 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-25 20:45:33,346 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-25 20:45:33,346 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-25 20:45:33,346 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-25 20:45:33,346 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-25 20:45:33,346 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-25 20:45:33,346 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-25 20:45:33,346 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,347 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,347 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:33,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 08:45:33 BoogieIcfgContainer [2020-10-25 20:45:33,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 20:45:33,374 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 20:45:33,374 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 20:45:33,374 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 20:45:33,375 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:45:16" (3/4) ... [2020-10-25 20:45:33,379 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 20:45:33,423 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 20:45:33,425 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 20:45:33,427 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:45:33,429 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:45:33,713 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 20:45:33,713 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 20:45:33,716 INFO L168 Benchmark]: Toolchain (without parser) took 20542.35 ms. Allocated memory was 48.2 MB in the beginning and 572.5 MB in the end (delta: 524.3 MB). Free memory was 30.5 MB in the beginning and 403.6 MB in the end (delta: -373.0 MB). Peak memory consumption was 150.5 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:33,717 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 39.8 MB. Free memory was 25.2 MB in the beginning and 25.2 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 20:45:33,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.66 ms. Allocated memory is still 48.2 MB. Free memory was 29.8 MB in the beginning and 20.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:33,718 INFO L168 Benchmark]: Boogie Procedure Inliner took 151.90 ms. Allocated memory is still 48.2 MB. Free memory was 20.1 MB in the beginning and 21.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:33,718 INFO L168 Benchmark]: Boogie Preprocessor took 100.83 ms. Allocated memory is still 48.2 MB. Free memory was 21.6 MB in the beginning and 15.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:33,719 INFO L168 Benchmark]: RCFGBuilder took 1788.59 ms. Allocated memory was 48.2 MB in the beginning and 71.3 MB in the end (delta: 23.1 MB). Free memory was 15.1 MB in the beginning and 31.4 MB in the end (delta: -16.3 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:33,719 INFO L168 Benchmark]: TraceAbstraction took 17355.41 ms. Allocated memory was 71.3 MB in the beginning and 572.5 MB in the end (delta: 501.2 MB). Free memory was 30.9 MB in the beginning and 423.5 MB in the end (delta: -392.5 MB). Peak memory consumption was 108.6 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:33,719 INFO L168 Benchmark]: Witness Printer took 339.56 ms. Allocated memory is still 572.5 MB. Free memory was 423.5 MB in the beginning and 403.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:33,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 39.8 MB. Free memory was 25.2 MB in the beginning and 25.2 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 788.66 ms. Allocated memory is still 48.2 MB. Free memory was 29.8 MB in the beginning and 20.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 151.90 ms. Allocated memory is still 48.2 MB. Free memory was 20.1 MB in the beginning and 21.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 100.83 ms. Allocated memory is still 48.2 MB. Free memory was 21.6 MB in the beginning and 15.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1788.59 ms. Allocated memory was 48.2 MB in the beginning and 71.3 MB in the end (delta: 23.1 MB). Free memory was 15.1 MB in the beginning and 31.4 MB in the end (delta: -16.3 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17355.41 ms. Allocated memory was 71.3 MB in the beginning and 572.5 MB in the end (delta: 501.2 MB). Free memory was 30.9 MB in the beginning and 423.5 MB in the end (delta: -392.5 MB). Peak memory consumption was 108.6 MB. Max. memory is 16.1 GB. * Witness Printer took 339.56 ms. Allocated memory is still 572.5 MB. Free memory was 423.5 MB in the beginning and 403.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((a21 <= 7 || 6 <= a15) || 10 <= a21) || a12 <= 80 - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: ((a21 <= 7 || 6 <= a15) || 10 <= a21) || a12 <= 80 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.0s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 796 SDtfs, 1366 SDslu, 45 SDs, 0 SdLazy, 4429 SolverSat, 756 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1835 GetRequests, 1807 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2318occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 890 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 27 HoareAnnotationTreeSize, 3 FomulaSimplifications, 756 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 3994 NumberOfCodeBlocks, 3994 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3981 ConstructedInterpolants, 0 QuantifiedInterpolants, 5552483 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2467 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 4443/5006 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 correct! Received shutdown request...