./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label15.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_label15.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 d154970bf8f87df5a7a8b8a11de7e4dc3a9f3ce2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:45:10,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 20:45:10,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 20:45:10,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 20:45:10,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 20:45:10,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 20:45:10,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 20:45:10,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 20:45:10,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 20:45:10,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 20:45:10,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 20:45:10,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 20:45:10,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 20:45:10,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 20:45:10,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 20:45:10,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 20:45:10,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 20:45:10,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 20:45:10,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 20:45:10,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 20:45:10,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 20:45:10,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 20:45:10,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 20:45:10,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 20:45:10,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 20:45:10,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 20:45:10,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 20:45:10,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 20:45:10,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 20:45:10,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 20:45:10,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 20:45:10,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 20:45:10,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 20:45:10,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 20:45:10,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 20:45:10,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 20:45:10,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 20:45:10,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 20:45:10,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 20:45:10,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 20:45:10,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 20:45:10,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 20:45:10,816 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 20:45:10,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 20:45:10,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 20:45:10,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 20:45:10,819 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 20:45:10,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 20:45:10,820 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 20:45:10,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 20:45:10,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 20:45:10,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 20:45:10,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 20:45:10,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 20:45:10,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 20:45:10,821 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 20:45:10,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 20:45:10,822 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 20:45:10,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 20:45:10,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 20:45:10,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 20:45:10,823 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 20:45:10,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 20:45:10,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:45:10,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 20:45:10,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 20:45:10,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 20:45:10,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 20:45:10,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 20:45:10,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 20:45:10,826 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 20:45:10,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d154970bf8f87df5a7a8b8a11de7e4dc3a9f3ce2 [2020-10-25 20:45:11,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 20:45:11,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 20:45:11,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 20:45:11,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 20:45:11,232 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 20:45:11,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label15.c [2020-10-25 20:45:11,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12ccf8766/163c1ef523064b42ad989c60d88aca4c/FLAGc17fdc4a8 [2020-10-25 20:45:12,155 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 20:45:12,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label15.c [2020-10-25 20:45:12,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12ccf8766/163c1ef523064b42ad989c60d88aca4c/FLAGc17fdc4a8 [2020-10-25 20:45:12,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12ccf8766/163c1ef523064b42ad989c60d88aca4c [2020-10-25 20:45:12,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 20:45:12,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 20:45:12,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 20:45:12,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 20:45:12,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 20:45:12,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:45:12" (1/1) ... [2020-10-25 20:45:12,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec87c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:12, skipping insertion in model container [2020-10-25 20:45:12,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:45:12" (1/1) ... [2020-10-25 20:45:12,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 20:45:12,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 20:45:12,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:45:13,003 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 20:45:13,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:45:13,214 INFO L208 MainTranslator]: Completed translation [2020-10-25 20:45:13,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:13 WrapperNode [2020-10-25 20:45:13,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 20:45:13,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 20:45:13,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 20:45:13,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 20:45:13,227 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 20:45:13,270 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 20:45:13,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 20:45:13,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 20:45:13,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 20:45:13,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 20:45:13,402 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 20:45:13,403 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 20:45:13,414 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 20:45:13,415 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 20:45:13,468 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 20:45:13,487 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 20:45:13,511 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 20:45:13,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 20:45:13,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 20:45:13,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 20:45:13,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 20:45:13,535 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 20:45:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 20:45:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 20:45:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 20:45:13,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 20:45:15,004 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 20:45:15,005 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 20:45:15,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:45:15 BoogieIcfgContainer [2020-10-25 20:45:15,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 20:45:15,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 20:45:15,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 20:45:15,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 20:45:15,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 08:45:12" (1/3) ... [2020-10-25 20:45:15,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db213a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:45:15, skipping insertion in model container [2020-10-25 20:45:15,014 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 20:45:15,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db213a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:45:15, skipping insertion in model container [2020-10-25 20:45:15,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:45:15" (3/3) ... [2020-10-25 20:45:15,016 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label15.c [2020-10-25 20:45:15,028 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 20:45:15,034 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 20:45:15,047 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 20:45:15,076 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 20:45:15,076 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 20:45:15,076 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 20:45:15,077 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 20:45:15,077 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 20:45:15,077 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 20:45:15,077 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 20:45:15,078 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 20:45:15,099 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-25 20:45:15,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-25 20:45:15,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:15,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:15,110 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:15,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:15,117 INFO L82 PathProgramCache]: Analyzing trace with hash 962891993, now seen corresponding path program 1 times [2020-10-25 20:45:15,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:15,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958583785] [2020-10-25 20:45:15,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:15,450 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 20:45:15,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958583785] [2020-10-25 20:45:15,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:15,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:45:15,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049013621] [2020-10-25 20:45:15,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:15,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:15,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:15,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:15,481 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-10-25 20:45:16,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:16,828 INFO L93 Difference]: Finished difference Result 686 states and 1217 transitions. [2020-10-25 20:45:16,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:16,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-10-25 20:45:16,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:16,846 INFO L225 Difference]: With dead ends: 686 [2020-10-25 20:45:16,847 INFO L226 Difference]: Without dead ends: 360 [2020-10-25 20:45:16,852 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 20:45:16,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-25 20:45:16,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-10-25 20:45:16,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-25 20:45:16,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2020-10-25 20:45:16,935 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 65 [2020-10-25 20:45:16,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:16,936 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2020-10-25 20:45:16,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:16,936 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2020-10-25 20:45:16,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-25 20:45:16,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:16,943 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, 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] [2020-10-25 20:45:16,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 20:45:16,944 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:16,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:16,945 INFO L82 PathProgramCache]: Analyzing trace with hash -385467193, now seen corresponding path program 1 times [2020-10-25 20:45:16,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:16,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699767045] [2020-10-25 20:45:16,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:17,345 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:45:17,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699767045] [2020-10-25 20:45:17,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:17,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:45:17,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340849396] [2020-10-25 20:45:17,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:45:17,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:17,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:45:17,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:45:17,352 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 4 states. [2020-10-25 20:45:18,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:18,987 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2020-10-25 20:45:18,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:45:18,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 144 [2020-10-25 20:45:18,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:18,999 INFO L225 Difference]: With dead ends: 1074 [2020-10-25 20:45:18,999 INFO L226 Difference]: Without dead ends: 716 [2020-10-25 20:45:19,002 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 20:45:19,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-25 20:45:19,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-10-25 20:45:19,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-10-25 20:45:19,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2020-10-25 20:45:19,063 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 144 [2020-10-25 20:45:19,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:19,069 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2020-10-25 20:45:19,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:45:19,069 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2020-10-25 20:45:19,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-25 20:45:19,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:19,085 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, 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] [2020-10-25 20:45:19,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 20:45:19,085 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:19,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:19,087 INFO L82 PathProgramCache]: Analyzing trace with hash 194585064, now seen corresponding path program 1 times [2020-10-25 20:45:19,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:19,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488643079] [2020-10-25 20:45:19,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-25 20:45:19,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488643079] [2020-10-25 20:45:19,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105565563] [2020-10-25 20:45:19,393 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 20:45:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:19,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:45:19,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:45:19,699 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-25 20:45:19,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:45:19,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-25 20:45:19,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79248036] [2020-10-25 20:45:19,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:19,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:19,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:19,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:45:19,704 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand 3 states. [2020-10-25 20:45:20,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:20,808 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2020-10-25 20:45:20,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:20,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-10-25 20:45:20,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:20,824 INFO L225 Difference]: With dead ends: 1252 [2020-10-25 20:45:20,831 INFO L226 Difference]: Without dead ends: 1250 [2020-10-25 20:45:20,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 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 20:45:20,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-10-25 20:45:20,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2020-10-25 20:45:20,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-25 20:45:20,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2020-10-25 20:45:20,874 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 170 [2020-10-25 20:45:20,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:20,876 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2020-10-25 20:45:20,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:20,876 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2020-10-25 20:45:20,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-25 20:45:20,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:20,888 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, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:21,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-25 20:45:21,102 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:21,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:21,104 INFO L82 PathProgramCache]: Analyzing trace with hash 401745846, now seen corresponding path program 1 times [2020-10-25 20:45:21,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:21,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805195937] [2020-10-25 20:45:21,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:21,344 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-25 20:45:21,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805195937] [2020-10-25 20:45:21,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:21,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:45:21,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473809155] [2020-10-25 20:45:21,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:45:21,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:21,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:45:21,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:45:21,351 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand 4 states. [2020-10-25 20:45:22,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:22,559 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2020-10-25 20:45:22,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:45:22,559 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 224 [2020-10-25 20:45:22,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:22,566 INFO L225 Difference]: With dead ends: 1993 [2020-10-25 20:45:22,566 INFO L226 Difference]: Without dead ends: 1072 [2020-10-25 20:45:22,568 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 20:45:22,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-10-25 20:45:22,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-10-25 20:45:22,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-10-25 20:45:22,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2020-10-25 20:45:22,593 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 224 [2020-10-25 20:45:22,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:22,594 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2020-10-25 20:45:22,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:45:22,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2020-10-25 20:45:22,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-25 20:45:22,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:22,598 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:22,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 20:45:22,598 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:22,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:22,600 INFO L82 PathProgramCache]: Analyzing trace with hash 236138806, now seen corresponding path program 1 times [2020-10-25 20:45:22,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:22,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843120545] [2020-10-25 20:45:22,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:23,027 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 125 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:45:23,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843120545] [2020-10-25 20:45:23,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282901356] [2020-10-25 20:45:23,029 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 20:45:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:23,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:45:23,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:45:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-25 20:45:23,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:45:23,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-10-25 20:45:23,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777692693] [2020-10-25 20:45:23,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:23,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:23,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:23,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:45:23,317 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand 3 states. [2020-10-25 20:45:24,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:24,170 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2020-10-25 20:45:24,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:24,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-10-25 20:45:24,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:24,177 INFO L225 Difference]: With dead ends: 2320 [2020-10-25 20:45:24,177 INFO L226 Difference]: Without dead ends: 1250 [2020-10-25 20:45:24,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 235 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 20:45:24,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-10-25 20:45:24,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2020-10-25 20:45:24,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-10-25 20:45:24,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2020-10-25 20:45:24,203 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 236 [2020-10-25 20:45:24,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:24,204 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2020-10-25 20:45:24,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:24,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2020-10-25 20:45:24,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-25 20:45:24,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:24,209 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:45:24,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:45:24,424 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:24,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:24,426 INFO L82 PathProgramCache]: Analyzing trace with hash -691544289, now seen corresponding path program 1 times [2020-10-25 20:45:24,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:24,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058279286] [2020-10-25 20:45:24,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:45:24,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058279286] [2020-10-25 20:45:24,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:24,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:45:24,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372760067] [2020-10-25 20:45:24,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:24,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:24,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:24,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:24,672 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand 3 states. [2020-10-25 20:45:25,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:25,600 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2020-10-25 20:45:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:25,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-10-25 20:45:25,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:25,611 INFO L225 Difference]: With dead ends: 2854 [2020-10-25 20:45:25,611 INFO L226 Difference]: Without dead ends: 1784 [2020-10-25 20:45:25,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:25,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2020-10-25 20:45:25,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2020-10-25 20:45:25,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-10-25 20:45:25,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2013 transitions. [2020-10-25 20:45:25,653 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2013 transitions. Word has length 239 [2020-10-25 20:45:25,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:25,656 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 2013 transitions. [2020-10-25 20:45:25,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2013 transitions. [2020-10-25 20:45:25,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-25 20:45:25,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:25,663 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, 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, 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 20:45:25,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 20:45:25,664 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:25,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:25,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1473681241, now seen corresponding path program 1 times [2020-10-25 20:45:25,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:25,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92002559] [2020-10-25 20:45:25,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-10-25 20:45:26,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92002559] [2020-10-25 20:45:26,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:26,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:45:26,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206527539] [2020-10-25 20:45:26,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:45:26,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:26,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:45:26,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:45:26,079 INFO L87 Difference]: Start difference. First operand 1784 states and 2013 transitions. Second operand 4 states. [2020-10-25 20:45:27,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:27,077 INFO L93 Difference]: Finished difference Result 3624 states and 4105 transitions. [2020-10-25 20:45:27,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:45:27,077 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 356 [2020-10-25 20:45:27,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:27,088 INFO L225 Difference]: With dead ends: 3624 [2020-10-25 20:45:27,088 INFO L226 Difference]: Without dead ends: 1962 [2020-10-25 20:45:27,091 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 20:45:27,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-10-25 20:45:27,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2020-10-25 20:45:27,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-10-25 20:45:27,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1934 transitions. [2020-10-25 20:45:27,131 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1934 transitions. Word has length 356 [2020-10-25 20:45:27,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:27,132 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 1934 transitions. [2020-10-25 20:45:27,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:45:27,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1934 transitions. [2020-10-25 20:45:27,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2020-10-25 20:45:27,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:27,143 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, 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, 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, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:27,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 20:45:27,143 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:27,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:27,144 INFO L82 PathProgramCache]: Analyzing trace with hash 226980639, now seen corresponding path program 1 times [2020-10-25 20:45:27,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:27,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663641646] [2020-10-25 20:45:27,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:27,469 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 457 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:45:27,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663641646] [2020-10-25 20:45:27,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:27,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:45:27,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588996390] [2020-10-25 20:45:27,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:27,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:27,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:27,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:27,472 INFO L87 Difference]: Start difference. First operand 1784 states and 1934 transitions. Second operand 3 states. [2020-10-25 20:45:28,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:28,356 INFO L93 Difference]: Finished difference Result 4278 states and 4675 transitions. [2020-10-25 20:45:28,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:28,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 451 [2020-10-25 20:45:28,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:28,369 INFO L225 Difference]: With dead ends: 4278 [2020-10-25 20:45:28,369 INFO L226 Difference]: Without dead ends: 2674 [2020-10-25 20:45:28,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:28,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-10-25 20:45:28,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2140. [2020-10-25 20:45:28,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-10-25 20:45:28,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2293 transitions. [2020-10-25 20:45:28,423 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2293 transitions. Word has length 451 [2020-10-25 20:45:28,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:28,424 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2293 transitions. [2020-10-25 20:45:28,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:28,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2293 transitions. [2020-10-25 20:45:28,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2020-10-25 20:45:28,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:28,432 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:28,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 20:45:28,433 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:28,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:28,433 INFO L82 PathProgramCache]: Analyzing trace with hash 443369256, now seen corresponding path program 1 times [2020-10-25 20:45:28,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:28,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530505437] [2020-10-25 20:45:28,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 457 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:45:28,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530505437] [2020-10-25 20:45:28,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:28,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:45:28,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53162437] [2020-10-25 20:45:28,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:28,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:28,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:28,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:28,836 INFO L87 Difference]: Start difference. First operand 2140 states and 2293 transitions. Second operand 3 states. [2020-10-25 20:45:29,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:29,674 INFO L93 Difference]: Finished difference Result 4634 states and 5045 transitions. [2020-10-25 20:45:29,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:29,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 458 [2020-10-25 20:45:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:29,688 INFO L225 Difference]: With dead ends: 4634 [2020-10-25 20:45:29,688 INFO L226 Difference]: Without dead ends: 2674 [2020-10-25 20:45:29,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:29,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-10-25 20:45:29,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2020-10-25 20:45:29,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-10-25 20:45:29,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2662 transitions. [2020-10-25 20:45:29,747 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2662 transitions. Word has length 458 [2020-10-25 20:45:29,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:29,748 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2662 transitions. [2020-10-25 20:45:29,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:29,748 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2662 transitions. [2020-10-25 20:45:29,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2020-10-25 20:45:29,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:29,754 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:29,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 20:45:29,754 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:29,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:29,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1108606264, now seen corresponding path program 1 times [2020-10-25 20:45:29,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:29,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383231478] [2020-10-25 20:45:29,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:30,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 589 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2020-10-25 20:45:30,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383231478] [2020-10-25 20:45:30,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:30,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:45:30,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274633958] [2020-10-25 20:45:30,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:30,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:30,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:30,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:30,336 INFO L87 Difference]: Start difference. First operand 2496 states and 2662 transitions. Second operand 3 states. [2020-10-25 20:45:31,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:31,203 INFO L93 Difference]: Finished difference Result 5524 states and 5973 transitions. [2020-10-25 20:45:31,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:31,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 613 [2020-10-25 20:45:31,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:31,217 INFO L225 Difference]: With dead ends: 5524 [2020-10-25 20:45:31,217 INFO L226 Difference]: Without dead ends: 3208 [2020-10-25 20:45:31,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:31,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-10-25 20:45:31,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2020-10-25 20:45:31,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-10-25 20:45:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3228 transitions. [2020-10-25 20:45:31,275 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3228 transitions. Word has length 613 [2020-10-25 20:45:31,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:31,276 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3228 transitions. [2020-10-25 20:45:31,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:31,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3228 transitions. [2020-10-25 20:45:31,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2020-10-25 20:45:31,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:31,283 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:45:31,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 20:45:31,283 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:31,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:31,284 INFO L82 PathProgramCache]: Analyzing trace with hash 322501083, now seen corresponding path program 1 times [2020-10-25 20:45:31,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:31,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368817480] [2020-10-25 20:45:31,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:31,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 849 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2020-10-25 20:45:31,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368817480] [2020-10-25 20:45:31,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:31,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:45:31,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157823898] [2020-10-25 20:45:31,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:31,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:31,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:31,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:31,970 INFO L87 Difference]: Start difference. First operand 3030 states and 3228 transitions. Second operand 3 states. [2020-10-25 20:45:32,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:32,798 INFO L93 Difference]: Finished difference Result 6592 states and 7097 transitions. [2020-10-25 20:45:32,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:32,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 631 [2020-10-25 20:45:32,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:32,816 INFO L225 Difference]: With dead ends: 6592 [2020-10-25 20:45:32,816 INFO L226 Difference]: Without dead ends: 3742 [2020-10-25 20:45:32,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:32,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-10-25 20:45:32,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3386. [2020-10-25 20:45:32,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-10-25 20:45:32,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3621 transitions. [2020-10-25 20:45:32,885 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3621 transitions. Word has length 631 [2020-10-25 20:45:32,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:32,887 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3621 transitions. [2020-10-25 20:45:32,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:32,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3621 transitions. [2020-10-25 20:45:32,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2020-10-25 20:45:32,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:32,894 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 4, 3, 3, 3, 3, 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] [2020-10-25 20:45:32,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 20:45:32,895 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:32,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:32,895 INFO L82 PathProgramCache]: Analyzing trace with hash 2018449179, now seen corresponding path program 1 times [2020-10-25 20:45:32,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:32,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730868684] [2020-10-25 20:45:32,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1381 backedges. 957 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:45:33,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730868684] [2020-10-25 20:45:33,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811952530] [2020-10-25 20:45:33,562 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 20:45:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:33,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:45:33,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:45:34,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1381 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2020-10-25 20:45:34,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:45:34,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:45:34,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15124556] [2020-10-25 20:45:34,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:34,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:34,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:34,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:45:34,108 INFO L87 Difference]: Start difference. First operand 3386 states and 3621 transitions. Second operand 3 states. [2020-10-25 20:45:34,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:34,977 INFO L93 Difference]: Finished difference Result 7304 states and 7883 transitions. [2020-10-25 20:45:34,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:34,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 654 [2020-10-25 20:45:34,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:34,994 INFO L225 Difference]: With dead ends: 7304 [2020-10-25 20:45:34,994 INFO L226 Difference]: Without dead ends: 4098 [2020-10-25 20:45:34,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:45:35,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-10-25 20:45:35,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3920. [2020-10-25 20:45:35,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-10-25 20:45:35,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4192 transitions. [2020-10-25 20:45:35,067 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4192 transitions. Word has length 654 [2020-10-25 20:45:35,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:35,068 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4192 transitions. [2020-10-25 20:45:35,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:35,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4192 transitions. [2020-10-25 20:45:35,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2020-10-25 20:45:35,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:35,079 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2020-10-25 20:45:35,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-25 20:45:35,294 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:35,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:35,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1210498663, now seen corresponding path program 1 times [2020-10-25 20:45:35,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:35,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119929310] [2020-10-25 20:45:35,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:36,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 1369 proven. 155 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2020-10-25 20:45:36,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119929310] [2020-10-25 20:45:36,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17090445] [2020-10-25 20:45:36,162 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 20:45:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:36,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:45:36,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:45:36,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2020-10-25 20:45:36,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:45:36,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:45:36,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920077133] [2020-10-25 20:45:36,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:36,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:36,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:36,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:45:36,842 INFO L87 Difference]: Start difference. First operand 3920 states and 4192 transitions. Second operand 3 states. [2020-10-25 20:45:37,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:37,606 INFO L93 Difference]: Finished difference Result 5346 states and 5684 transitions. [2020-10-25 20:45:37,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:37,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 801 [2020-10-25 20:45:37,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:37,629 INFO L225 Difference]: With dead ends: 5346 [2020-10-25 20:45:37,629 INFO L226 Difference]: Without dead ends: 5344 [2020-10-25 20:45:37,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 801 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:45:37,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2020-10-25 20:45:37,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4098. [2020-10-25 20:45:37,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2020-10-25 20:45:37,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4374 transitions. [2020-10-25 20:45:37,701 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4374 transitions. Word has length 801 [2020-10-25 20:45:37,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:37,702 INFO L481 AbstractCegarLoop]: Abstraction has 4098 states and 4374 transitions. [2020-10-25 20:45:37,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:37,702 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4374 transitions. [2020-10-25 20:45:37,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2020-10-25 20:45:37,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:37,713 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 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, 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] [2020-10-25 20:45:37,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:45:37,927 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:37,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:37,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1906340564, now seen corresponding path program 1 times [2020-10-25 20:45:37,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:37,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922228564] [2020-10-25 20:45:37,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:38,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1991 backedges. 1459 proven. 155 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2020-10-25 20:45:38,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922228564] [2020-10-25 20:45:38,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620624052] [2020-10-25 20:45:38,669 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 20:45:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:38,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:45:38,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:45:39,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1991 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 1614 trivial. 0 not checked. [2020-10-25 20:45:39,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:45:39,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:45:39,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298611278] [2020-10-25 20:45:39,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:39,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:39,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:39,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:45:39,446 INFO L87 Difference]: Start difference. First operand 4098 states and 4374 transitions. Second operand 3 states. [2020-10-25 20:45:40,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:40,285 INFO L93 Difference]: Finished difference Result 8906 states and 9534 transitions. [2020-10-25 20:45:40,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:40,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 819 [2020-10-25 20:45:40,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:40,299 INFO L225 Difference]: With dead ends: 8906 [2020-10-25 20:45:40,299 INFO L226 Difference]: Without dead ends: 4988 [2020-10-25 20:45:40,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 819 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:45:40,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-10-25 20:45:40,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4632. [2020-10-25 20:45:40,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-10-25 20:45:40,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4940 transitions. [2020-10-25 20:45:40,371 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4940 transitions. Word has length 819 [2020-10-25 20:45:40,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:40,372 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4940 transitions. [2020-10-25 20:45:40,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:40,372 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4940 transitions. [2020-10-25 20:45:40,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 987 [2020-10-25 20:45:40,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:40,387 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 3, 3, 3, 3, 3, 3, 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] [2020-10-25 20:45:40,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-10-25 20:45:40,603 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:40,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:40,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1048080930, now seen corresponding path program 1 times [2020-10-25 20:45:40,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:40,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409240354] [2020-10-25 20:45:40,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:42,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2840 backedges. 1280 proven. 642 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2020-10-25 20:45:42,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409240354] [2020-10-25 20:45:42,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682803735] [2020-10-25 20:45:42,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:45:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:42,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:45:42,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:45:43,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2840 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 2400 trivial. 0 not checked. [2020-10-25 20:45:43,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:45:43,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-25 20:45:43,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514497021] [2020-10-25 20:45:43,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:43,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:43,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:43,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:45:43,649 INFO L87 Difference]: Start difference. First operand 4632 states and 4940 transitions. Second operand 3 states. [2020-10-25 20:45:44,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:44,503 INFO L93 Difference]: Finished difference Result 9260 states and 9877 transitions. [2020-10-25 20:45:44,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:44,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 986 [2020-10-25 20:45:44,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:44,505 INFO L225 Difference]: With dead ends: 9260 [2020-10-25 20:45:44,505 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 20:45:44,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 991 GetRequests, 985 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:45:44,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 20:45:44,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 20:45:44,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 20:45:44,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 20:45:44,514 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 986 [2020-10-25 20:45:44,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:44,515 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 20:45:44,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:44,515 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 20:45:44,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 20:45:44,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:45:44,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 20:45:45,087 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 28 [2020-10-25 20:45:45,310 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 28 [2020-10-25 20:45:45,315 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-25 20:45:45,315 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-25 20:45:45,315 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-25 20:45:45,315 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-25 20:45:45,315 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-25 20:45:45,315 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-25 20:45:45,315 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-25 20:45:45,315 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,315 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-25 20:45:45,316 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-25 20:45:45,317 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-25 20:45:45,317 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-25 20:45:45,317 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-25 20:45:45,317 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-25 20:45:45,317 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-25 20:45:45,318 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-25 20:45:45,318 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,319 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,319 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,319 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-25 20:45:45,319 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-25 20:45:45,319 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-25 20:45:45,319 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-25 20:45:45,320 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-25 20:45:45,320 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-25 20:45:45,320 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-25 20:45:45,320 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-25 20:45:45,320 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-25 20:45:45,320 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,320 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,320 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,320 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-25 20:45:45,320 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-25 20:45:45,320 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-25 20:45:45,320 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-25 20:45:45,321 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-25 20:45:45,322 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-25 20:45:45,322 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,322 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,322 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,322 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-25 20:45:45,322 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-25 20:45:45,322 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-25 20:45:45,322 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-25 20:45:45,322 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-25 20:45:45,322 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-25 20:45:45,322 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-25 20:45:45,322 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-25 20:45:45,322 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,323 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-25 20:45:45,324 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-25 20:45:45,325 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-25 20:45:45,325 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-25 20:45:45,325 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-25 20:45:45,325 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-25 20:45:45,325 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-25 20:45:45,325 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,325 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,325 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,325 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 20:45:45,325 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 20:45:45,325 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-25 20:45:45,325 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-25 20:45:45,326 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-25 20:45:45,327 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-25 20:45:45,327 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 20:45:45,327 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-25 20:45:45,327 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-25 20:45:45,327 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,331 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,331 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,331 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-25 20:45:45,331 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-25 20:45:45,331 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-25 20:45:45,331 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-25 20:45:45,331 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-25 20:45:45,331 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-25 20:45:45,331 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-25 20:45:45,332 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-25 20:45:45,333 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-25 20:45:45,333 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-25 20:45:45,333 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-25 20:45:45,333 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-25 20:45:45,333 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,333 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,333 INFO L270 CegarLoopResult]: At program point L873(lines 22 874) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= (+ ~a12~0 49) 0)) (.cse2 (<= ~a15~0 8)) (.cse3 (<= ~a21~0 6))) (or (and (<= 7 ~a15~0) .cse0) (and .cse1 .cse2 (<= 10 ~a21~0)) (and .cse0 (<= ~a12~0 80)) (and (<= 8 ~a21~0) .cse0) (and .cse0 .cse3) (and .cse1 .cse2 .cse3))) [2020-10-25 20:45:45,333 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-25 20:45:45,334 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-25 20:45:45,334 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-25 20:45:45,334 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-25 20:45:45,334 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-25 20:45:45,334 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-25 20:45:45,334 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-25 20:45:45,335 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-25 20:45:45,335 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,335 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,335 INFO L277 CegarLoopResult]: At program point L876(lines 876 892) the Hoare annotation is: true [2020-10-25 20:45:45,335 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-25 20:45:45,335 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-25 20:45:45,335 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-25 20:45:45,336 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-25 20:45:45,336 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-25 20:45:45,336 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-25 20:45:45,336 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-25 20:45:45,336 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 20:45:45,336 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,336 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,337 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-25 20:45:45,337 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-25 20:45:45,337 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-25 20:45:45,337 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-25 20:45:45,337 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-25 20:45:45,337 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-25 20:45:45,337 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,338 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,338 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-25 20:45:45,338 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,338 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-25 20:45:45,338 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= (+ ~a12~0 49) 0)) (.cse2 (<= ~a15~0 8)) (.cse3 (<= ~a21~0 6))) (or (and (<= 7 ~a15~0) .cse0) (and .cse1 .cse2 (<= 10 ~a21~0)) (and .cse0 (<= ~a12~0 80)) (and (<= 8 ~a21~0) .cse0) (and .cse0 .cse3) (and .cse1 .cse2 .cse3))) [2020-10-25 20:45:45,338 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-25 20:45:45,339 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-25 20:45:45,339 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-25 20:45:45,339 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-25 20:45:45,339 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-25 20:45:45,339 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-25 20:45:45,339 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-25 20:45:45,339 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-25 20:45:45,340 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-25 20:45:45,340 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,340 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,340 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,340 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-25 20:45:45,340 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-25 20:45:45,340 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-25 20:45:45,341 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-25 20:45:45,341 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-25 20:45:45,341 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 20:45:45,341 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-25 20:45:45,341 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-25 20:45:45,341 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-25 20:45:45,341 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-25 20:45:45,342 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,342 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,342 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,342 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-25 20:45:45,342 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-25 20:45:45,342 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-25 20:45:45,343 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-25 20:45:45,343 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-25 20:45:45,343 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-25 20:45:45,343 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-25 20:45:45,343 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-25 20:45:45,343 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,343 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,344 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,344 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-25 20:45:45,344 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-25 20:45:45,344 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-25 20:45:45,344 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-25 20:45:45,344 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-25 20:45:45,344 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-25 20:45:45,344 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-25 20:45:45,344 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-25 20:45:45,344 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-25 20:45:45,345 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,345 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,345 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:45:45,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 08:45:45 BoogieIcfgContainer [2020-10-25 20:45:45,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 20:45:45,385 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 20:45:45,385 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 20:45:45,386 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 20:45:45,386 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:45:15" (3/4) ... [2020-10-25 20:45:45,390 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 20:45:45,431 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 20:45:45,433 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 20:45:45,435 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:45:45,436 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:45:45,661 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 20:45:45,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 20:45:45,663 INFO L168 Benchmark]: Toolchain (without parser) took 33306.26 ms. Allocated memory was 44.0 MB in the beginning and 1.8 GB in the end (delta: 1.7 GB). Free memory was 27.3 MB in the beginning and 1.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 344.6 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:45,663 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 44.0 MB. Free memory is still 28.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 20:45:45,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 849.44 ms. Allocated memory was 44.0 MB in the beginning and 56.6 MB in the end (delta: 12.6 MB). Free memory was 26.6 MB in the beginning and 29.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:45,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 143.53 ms. Allocated memory is still 56.6 MB. Free memory was 29.6 MB in the beginning and 20.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:45,665 INFO L168 Benchmark]: Boogie Preprocessor took 170.20 ms. Allocated memory is still 56.6 MB. Free memory was 20.1 MB in the beginning and 28.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:45,666 INFO L168 Benchmark]: RCFGBuilder took 1474.04 ms. Allocated memory was 56.6 MB in the beginning and 92.3 MB in the end (delta: 35.7 MB). Free memory was 28.4 MB in the beginning and 58.7 MB in the end (delta: -30.3 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:45,666 INFO L168 Benchmark]: TraceAbstraction took 30375.63 ms. Allocated memory was 92.3 MB in the beginning and 1.8 GB in the end (delta: 1.7 GB). Free memory was 58.0 MB in the beginning and 1.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 307.5 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:45,667 INFO L168 Benchmark]: Witness Printer took 276.34 ms. Allocated memory is still 1.8 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-10-25 20:45:45,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 44.0 MB. Free memory is still 28.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 849.44 ms. Allocated memory was 44.0 MB in the beginning and 56.6 MB in the end (delta: 12.6 MB). Free memory was 26.6 MB in the beginning and 29.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 143.53 ms. Allocated memory is still 56.6 MB. Free memory was 29.6 MB in the beginning and 20.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 170.20 ms. Allocated memory is still 56.6 MB. Free memory was 20.1 MB in the beginning and 28.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1474.04 ms. Allocated memory was 56.6 MB in the beginning and 92.3 MB in the end (delta: 35.7 MB). Free memory was 28.4 MB in the beginning and 58.7 MB in the end (delta: -30.3 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 30375.63 ms. Allocated memory was 92.3 MB in the beginning and 1.8 GB in the end (delta: 1.7 GB). Free memory was 58.0 MB in the beginning and 1.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 307.5 MB. Max. memory is 16.1 GB. * Witness Printer took 276.34 ms. Allocated memory is still 1.8 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 18.9 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: (((((7 <= a15 && a24 == 1) || ((a12 + 49 <= 0 && a15 <= 8) && 10 <= a21)) || (a24 == 1 && a12 <= 80)) || (8 <= a21 && a24 == 1)) || (a24 == 1 && a21 <= 6)) || ((a12 + 49 <= 0 && a15 <= 8) && a21 <= 6) - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: (((((7 <= a15 && a24 == 1) || ((a12 + 49 <= 0 && a15 <= 8) && 10 <= a21)) || (a24 == 1 && a12 <= 80)) || (8 <= a21 && a24 == 1)) || (a24 == 1 && a21 <= 6)) || ((a12 + 49 <= 0 && a15 <= 8) && a21 <= 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.6s, OverallIterations: 15, TraceHistogramMax: 8, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1988 SDtfs, 1946 SDslu, 81 SDs, 0 SdLazy, 7729 SolverSat, 940 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3712 GetRequests, 3677 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4632occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 15 MinimizatonAttempts, 3738 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 65 NumberOfFragments, 107 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3578 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 518 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 10513 NumberOfCodeBlocks, 10513 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 10492 ConstructedInterpolants, 0 QuantifiedInterpolants, 16977933 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4681 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 21 InterpolantComputations, 15 PerfectInterpolantSequences, 20456/21633 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...