./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/Fibonacci03.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/recursive/Fibonacci03.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 c18b98479d83d3111a28d9798b2d068fc51f15fb ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:09:12,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:09:12,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:09:12,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:09:12,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:09:12,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:09:12,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:09:12,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:09:12,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:09:12,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:09:12,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:09:12,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:09:12,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:09:12,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:09:12,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:09:12,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:09:12,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:09:12,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:09:12,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:09:12,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:09:12,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:09:12,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:09:12,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:09:12,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:09:12,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:09:12,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:09:12,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:09:12,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:09:12,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:09:12,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:09:12,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:09:12,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:09:12,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:09:12,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:09:12,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:09:12,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:09:12,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:09:12,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:09:12,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:09:12,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:09:12,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:09:12,457 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:09:12,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:09:12,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:09:12,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:09:12,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:09:12,509 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:09:12,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:09:12,510 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:09:12,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:09:12,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:09:12,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:09:12,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:09:12,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:09:12,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:09:12,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:09:12,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:09:12,513 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:09:12,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:09:12,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:09:12,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:09:12,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:09:12,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:09:12,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:09:12,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:09:12,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:09:12,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:09:12,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:09:12,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:09:12,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:09:12,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:09:12,516 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c18b98479d83d3111a28d9798b2d068fc51f15fb [2020-10-25 23:09:12,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:09:12,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:09:12,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:09:12,984 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:09:12,986 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:09:12,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Fibonacci03.c [2020-10-25 23:09:13,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6027b98b8/3f6c77d8775f43e1b784ba39f3e577f8/FLAG6ef0bcf8e [2020-10-25 23:09:13,797 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:09:13,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci03.c [2020-10-25 23:09:13,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6027b98b8/3f6c77d8775f43e1b784ba39f3e577f8/FLAG6ef0bcf8e [2020-10-25 23:09:14,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6027b98b8/3f6c77d8775f43e1b784ba39f3e577f8 [2020-10-25 23:09:14,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:09:14,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:09:14,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:09:14,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:09:14,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:09:14,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:09:14" (1/1) ... [2020-10-25 23:09:14,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d20455f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:09:14, skipping insertion in model container [2020-10-25 23:09:14,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:09:14" (1/1) ... [2020-10-25 23:09:14,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:09:14,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:09:14,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:09:14,410 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:09:14,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:09:14,442 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:09:14,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:09:14 WrapperNode [2020-10-25 23:09:14,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:09:14,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:09:14,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:09:14,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:09:14,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:09:14" (1/1) ... [2020-10-25 23:09:14,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:09:14" (1/1) ... [2020-10-25 23:09:14,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:09:14,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:09:14,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:09:14,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:09:14,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:09:14" (1/1) ... [2020-10-25 23:09:14,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:09:14" (1/1) ... [2020-10-25 23:09:14,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:09:14" (1/1) ... [2020-10-25 23:09:14,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:09:14" (1/1) ... [2020-10-25 23:09:14,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:09:14" (1/1) ... [2020-10-25 23:09:14,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:09:14" (1/1) ... [2020-10-25 23:09:14,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:09:14" (1/1) ... [2020-10-25 23:09:14,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:09:14,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:09:14,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:09:14,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:09:14,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:09:14" (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 23:09:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-10-25 23:09:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-10-25 23:09:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:09:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:09:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:09:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:09:14,857 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:09:14,857 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-25 23:09:14,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:09:14 BoogieIcfgContainer [2020-10-25 23:09:14,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:09:14,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:09:14,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:09:14,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:09:14,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:09:14" (1/3) ... [2020-10-25 23:09:14,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765357b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:09:14, skipping insertion in model container [2020-10-25 23:09:14,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:09:14" (2/3) ... [2020-10-25 23:09:14,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765357b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:09:14, skipping insertion in model container [2020-10-25 23:09:14,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:09:14" (3/3) ... [2020-10-25 23:09:14,889 INFO L111 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2020-10-25 23:09:14,921 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:09:14,937 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 23:09:14,975 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 23:09:15,023 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:09:15,024 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:09:15,024 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:09:15,024 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:09:15,024 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:09:15,025 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:09:15,025 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:09:15,025 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:09:15,051 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-25 23:09:15,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 23:09:15,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:09:15,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:09:15,061 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:09:15,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:09:15,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1130427778, now seen corresponding path program 1 times [2020-10-25 23:09:15,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:09:15,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243266207] [2020-10-25 23:09:15,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:09:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:15,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:15,474 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 23:09:15,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243266207] [2020-10-25 23:09:15,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:09:15,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:09:15,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060075762] [2020-10-25 23:09:15,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:09:15,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:09:15,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:09:15,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:09:15,508 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2020-10-25 23:09:15,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:09:15,634 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2020-10-25 23:09:15,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 23:09:15,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-25 23:09:15,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:09:15,647 INFO L225 Difference]: With dead ends: 33 [2020-10-25 23:09:15,647 INFO L226 Difference]: Without dead ends: 19 [2020-10-25 23:09:15,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:09:15,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-25 23:09:15,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-25 23:09:15,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-25 23:09:15,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2020-10-25 23:09:15,700 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 11 [2020-10-25 23:09:15,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:09:15,701 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-10-25 23:09:15,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:09:15,702 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-10-25 23:09:15,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-25 23:09:15,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:09:15,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:09:15,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:09:15,705 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:09:15,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:09:15,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1373030608, now seen corresponding path program 1 times [2020-10-25 23:09:15,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:09:15,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831046606] [2020-10-25 23:09:15,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:09:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:15,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:15,828 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 23:09:15,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831046606] [2020-10-25 23:09:15,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:09:15,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:09:15,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906695550] [2020-10-25 23:09:15,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:09:15,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:09:15,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:09:15,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:09:15,839 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 5 states. [2020-10-25 23:09:15,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:09:15,902 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2020-10-25 23:09:15,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 23:09:15,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-25 23:09:15,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:09:15,904 INFO L225 Difference]: With dead ends: 25 [2020-10-25 23:09:15,905 INFO L226 Difference]: Without dead ends: 21 [2020-10-25 23:09:15,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:09:15,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-25 23:09:15,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2020-10-25 23:09:15,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-25 23:09:15,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2020-10-25 23:09:15,914 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2020-10-25 23:09:15,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:09:15,914 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-10-25 23:09:15,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:09:15,914 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-10-25 23:09:15,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 23:09:15,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:09:15,916 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:09:15,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:09:15,916 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:09:15,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:09:15,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1177011487, now seen corresponding path program 1 times [2020-10-25 23:09:15,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:09:15,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530457661] [2020-10-25 23:09:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:09:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:15,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:16,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:16,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-25 23:09:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:16,089 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-25 23:09:16,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530457661] [2020-10-25 23:09:16,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801478319] [2020-10-25 23:09:16,091 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 23:09:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:16,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-25 23:09:16,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:09:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-25 23:09:16,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 23:09:16,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-10-25 23:09:16,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273616404] [2020-10-25 23:09:16,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-25 23:09:16,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:09:16,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-25 23:09:16,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-25 23:09:16,282 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 9 states. [2020-10-25 23:09:16,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:09:16,413 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2020-10-25 23:09:16,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 23:09:16,414 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-10-25 23:09:16,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:09:16,415 INFO L225 Difference]: With dead ends: 36 [2020-10-25 23:09:16,415 INFO L226 Difference]: Without dead ends: 21 [2020-10-25 23:09:16,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-25 23:09:16,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-25 23:09:16,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-25 23:09:16,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-25 23:09:16,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-10-25 23:09:16,424 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 24 [2020-10-25 23:09:16,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:09:16,424 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-10-25 23:09:16,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-25 23:09:16,425 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-10-25 23:09:16,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-25 23:09:16,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:09:16,427 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:09:16,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-25 23:09:16,641 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:09:16,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:09:16,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1178789999, now seen corresponding path program 1 times [2020-10-25 23:09:16,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:09:16,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191046085] [2020-10-25 23:09:16,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:09:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:16,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:16,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:16,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:16,746 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-25 23:09:16,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191046085] [2020-10-25 23:09:16,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662798924] [2020-10-25 23:09:16,747 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 23:09:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:16,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-25 23:09:16,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:09:16,838 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-25 23:09:16,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 23:09:16,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-10-25 23:09:16,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272108688] [2020-10-25 23:09:16,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-25 23:09:16,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:09:16,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-25 23:09:16,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-25 23:09:16,841 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 7 states. [2020-10-25 23:09:16,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:09:16,968 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-10-25 23:09:16,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 23:09:16,969 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-10-25 23:09:16,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:09:16,972 INFO L225 Difference]: With dead ends: 39 [2020-10-25 23:09:16,972 INFO L226 Difference]: Without dead ends: 35 [2020-10-25 23:09:16,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-25 23:09:16,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-25 23:09:16,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-25 23:09:16,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-25 23:09:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-10-25 23:09:16,985 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 25 [2020-10-25 23:09:16,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:09:16,986 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-10-25 23:09:16,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-25 23:09:16,986 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-10-25 23:09:16,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-25 23:09:16,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:09:16,989 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:09:17,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:09:17,205 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:09:17,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:09:17,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1759764718, now seen corresponding path program 2 times [2020-10-25 23:09:17,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:09:17,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820354102] [2020-10-25 23:09:17,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:09:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:17,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:17,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:17,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:17,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:17,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:17,404 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-25 23:09:17,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820354102] [2020-10-25 23:09:17,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288026130] [2020-10-25 23:09:17,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:09:17,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-25 23:09:17,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-25 23:09:17,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-25 23:09:17,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:09:17,553 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-25 23:09:17,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 23:09:17,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2020-10-25 23:09:17,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901152170] [2020-10-25 23:09:17,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-25 23:09:17,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:09:17,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-25 23:09:17,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-25 23:09:17,557 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 12 states. [2020-10-25 23:09:17,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:09:17,831 INFO L93 Difference]: Finished difference Result 69 states and 104 transitions. [2020-10-25 23:09:17,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-25 23:09:17,832 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-25 23:09:17,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:09:17,834 INFO L225 Difference]: With dead ends: 69 [2020-10-25 23:09:17,834 INFO L226 Difference]: Without dead ends: 36 [2020-10-25 23:09:17,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2020-10-25 23:09:17,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-25 23:09:17,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-25 23:09:17,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-25 23:09:17,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-10-25 23:09:17,844 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 38 [2020-10-25 23:09:17,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:09:17,844 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-10-25 23:09:17,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-25 23:09:17,844 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-10-25 23:09:17,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-25 23:09:17,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:09:17,847 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:09:18,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:09:18,062 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:09:18,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:09:18,063 INFO L82 PathProgramCache]: Analyzing trace with hash 516620815, now seen corresponding path program 3 times [2020-10-25 23:09:18,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:09:18,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037051459] [2020-10-25 23:09:18,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:09:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:18,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:18,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:18,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:18,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:18,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:18,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:18,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:18,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:18,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:18,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:18,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:18,309 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 22 proven. 127 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-10-25 23:09:18,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037051459] [2020-10-25 23:09:18,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007727706] [2020-10-25 23:09:18,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 23:09:18,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2020-10-25 23:09:18,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-25 23:09:18,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-25 23:09:18,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:09:18,473 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 89 proven. 32 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-10-25 23:09:18,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 23:09:18,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2020-10-25 23:09:18,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935974753] [2020-10-25 23:09:18,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-25 23:09:18,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:09:18,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-25 23:09:18,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-25 23:09:18,476 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 11 states. [2020-10-25 23:09:18,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:09:18,761 INFO L93 Difference]: Finished difference Result 94 states and 140 transitions. [2020-10-25 23:09:18,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-25 23:09:18,761 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-10-25 23:09:18,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:09:18,765 INFO L225 Difference]: With dead ends: 94 [2020-10-25 23:09:18,765 INFO L226 Difference]: Without dead ends: 88 [2020-10-25 23:09:18,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-10-25 23:09:18,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-25 23:09:18,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2020-10-25 23:09:18,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-25 23:09:18,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 122 transitions. [2020-10-25 23:09:18,787 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 122 transitions. Word has length 80 [2020-10-25 23:09:18,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:09:18,787 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 122 transitions. [2020-10-25 23:09:18,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-25 23:09:18,788 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 122 transitions. [2020-10-25 23:09:18,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-25 23:09:18,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:09:18,792 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 23, 14, 14, 14, 14, 14, 14, 14, 9, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:09:19,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:09:19,006 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:09:19,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:09:19,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1693198702, now seen corresponding path program 4 times [2020-10-25 23:09:19,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:09:19,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906657629] [2020-10-25 23:09:19,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:09:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-25 23:09:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:19,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2241 backedges. 422 proven. 660 refuted. 0 times theorem prover too weak. 1159 trivial. 0 not checked. [2020-10-25 23:09:19,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906657629] [2020-10-25 23:09:19,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250469613] [2020-10-25 23:09:19,901 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 23:09:19,997 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-25 23:09:19,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-25 23:09:19,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 22 conjunts are in the unsatisfiable core [2020-10-25 23:09:20,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:09:20,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2241 backedges. 453 proven. 734 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2020-10-25 23:09:20,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 23:09:20,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 18 [2020-10-25 23:09:20,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950053956] [2020-10-25 23:09:20,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-25 23:09:20,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:09:20,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-25 23:09:20,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2020-10-25 23:09:20,292 INFO L87 Difference]: Start difference. First operand 82 states and 122 transitions. Second operand 18 states. [2020-10-25 23:09:21,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:09:21,138 INFO L93 Difference]: Finished difference Result 166 states and 297 transitions. [2020-10-25 23:09:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-25 23:09:21,139 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 202 [2020-10-25 23:09:21,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:09:21,146 INFO L225 Difference]: With dead ends: 166 [2020-10-25 23:09:21,146 INFO L226 Difference]: Without dead ends: 86 [2020-10-25 23:09:21,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2020-10-25 23:09:21,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-25 23:09:21,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 79. [2020-10-25 23:09:21,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-25 23:09:21,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 104 transitions. [2020-10-25 23:09:21,181 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 104 transitions. Word has length 202 [2020-10-25 23:09:21,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:09:21,182 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 104 transitions. [2020-10-25 23:09:21,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-25 23:09:21,183 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2020-10-25 23:09:21,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-25 23:09:21,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:09:21,187 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 33, 20, 20, 20, 20, 20, 20, 20, 13, 8, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:09:21,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-25 23:09:21,396 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:09:21,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:09:21,397 INFO L82 PathProgramCache]: Analyzing trace with hash -528287288, now seen corresponding path program 5 times [2020-10-25 23:09:21,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:09:21,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692691978] [2020-10-25 23:09:21,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:09:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-25 23:09:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:21,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-25 23:09:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:22,254 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 189 proven. 1130 refuted. 0 times theorem prover too weak. 3249 trivial. 0 not checked. [2020-10-25 23:09:22,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692691978] [2020-10-25 23:09:22,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801980589] [2020-10-25 23:09:22,255 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 23:09:22,440 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 41 check-sat command(s) [2020-10-25 23:09:22,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-25 23:09:22,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-25 23:09:22,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:09:22,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 801 proven. 327 refuted. 0 times theorem prover too weak. 3440 trivial. 0 not checked. [2020-10-25 23:09:22,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 23:09:22,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 13 [2020-10-25 23:09:22,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144605414] [2020-10-25 23:09:22,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-25 23:09:22,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:09:22,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-25 23:09:22,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-25 23:09:22,638 INFO L87 Difference]: Start difference. First operand 79 states and 104 transitions. Second operand 13 states. [2020-10-25 23:09:23,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:09:23,044 INFO L93 Difference]: Finished difference Result 181 states and 285 transitions. [2020-10-25 23:09:23,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-25 23:09:23,045 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 284 [2020-10-25 23:09:23,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:09:23,050 INFO L225 Difference]: With dead ends: 181 [2020-10-25 23:09:23,050 INFO L226 Difference]: Without dead ends: 103 [2020-10-25 23:09:23,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 363 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-10-25 23:09:23,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-25 23:09:23,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 95. [2020-10-25 23:09:23,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-25 23:09:23,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2020-10-25 23:09:23,068 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 284 [2020-10-25 23:09:23,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:09:23,069 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2020-10-25 23:09:23,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-25 23:09:23,069 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2020-10-25 23:09:23,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2020-10-25 23:09:23,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:09:23,081 INFO L422 BasicCegarLoop]: trace histogram [77, 77, 62, 38, 38, 38, 38, 38, 38, 38, 24, 15, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:09:23,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:09:23,295 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:09:23,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:09:23,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1789205782, now seen corresponding path program 6 times [2020-10-25 23:09:23,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:09:23,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474310450] [2020-10-25 23:09:23,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:09:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:23,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:23,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-25 23:09:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-25 23:09:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-25 23:09:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-25 23:09:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-25 23:09:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:24,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:25,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:25,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:25,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:25,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:25,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:25,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:25,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:25,597 INFO L134 CoverageAnalysis]: Checked inductivity of 16407 backedges. 2940 proven. 2962 refuted. 0 times theorem prover too weak. 10505 trivial. 0 not checked. [2020-10-25 23:09:25,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474310450] [2020-10-25 23:09:25,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718556592] [2020-10-25 23:09:25,598 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:09:25,785 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2020-10-25 23:09:25,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-25 23:09:25,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-25 23:09:25,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:09:26,129 INFO L134 CoverageAnalysis]: Checked inductivity of 16407 backedges. 533 proven. 2177 refuted. 0 times theorem prover too weak. 13697 trivial. 0 not checked. [2020-10-25 23:09:26,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 23:09:26,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11] total 21 [2020-10-25 23:09:26,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289342450] [2020-10-25 23:09:26,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-25 23:09:26,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:09:26,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-25 23:09:26,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2020-10-25 23:09:26,140 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand 21 states. [2020-10-25 23:09:27,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:09:27,380 INFO L93 Difference]: Finished difference Result 222 states and 390 transitions. [2020-10-25 23:09:27,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-25 23:09:27,381 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 529 [2020-10-25 23:09:27,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:09:27,385 INFO L225 Difference]: With dead ends: 222 [2020-10-25 23:09:27,385 INFO L226 Difference]: Without dead ends: 131 [2020-10-25 23:09:27,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=481, Invalid=1871, Unknown=0, NotChecked=0, Total=2352 [2020-10-25 23:09:27,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-25 23:09:27,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 113. [2020-10-25 23:09:27,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-25 23:09:27,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 161 transitions. [2020-10-25 23:09:27,417 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 161 transitions. Word has length 529 [2020-10-25 23:09:27,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:09:27,419 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 161 transitions. [2020-10-25 23:09:27,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-25 23:09:27,419 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 161 transitions. [2020-10-25 23:09:27,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1034 [2020-10-25 23:09:27,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:09:27,472 INFO L422 BasicCegarLoop]: trace histogram [151, 151, 122, 75, 75, 75, 75, 75, 75, 75, 47, 29, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:09:27,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:09:27,686 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:09:27,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:09:27,687 INFO L82 PathProgramCache]: Analyzing trace with hash -821876979, now seen corresponding path program 7 times [2020-10-25 23:09:27,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:09:27,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001131661] [2020-10-25 23:09:27,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:09:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:28,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-25 23:09:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-25 23:09:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-25 23:09:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:29,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-25 23:09:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2020-10-25 23:09:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:30,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-25 23:09:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-25 23:09:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-25 23:09:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2020-10-25 23:09:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-25 23:09:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:31,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:32,915 INFO L134 CoverageAnalysis]: Checked inductivity of 63781 backedges. 4264 proven. 7122 refuted. 0 times theorem prover too weak. 52395 trivial. 0 not checked. [2020-10-25 23:09:32,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001131661] [2020-10-25 23:09:32,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953954192] [2020-10-25 23:09:32,916 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:09:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:33,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 2324 conjuncts, 34 conjunts are in the unsatisfiable core [2020-10-25 23:09:33,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:09:34,049 INFO L134 CoverageAnalysis]: Checked inductivity of 63781 backedges. 4165 proven. 8809 refuted. 0 times theorem prover too weak. 50807 trivial. 0 not checked. [2020-10-25 23:09:34,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 23:09:34,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 23 [2020-10-25 23:09:34,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298428573] [2020-10-25 23:09:34,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-25 23:09:34,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:09:34,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-25 23:09:34,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2020-10-25 23:09:34,057 INFO L87 Difference]: Start difference. First operand 113 states and 161 transitions. Second operand 23 states. [2020-10-25 23:09:35,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:09:35,552 INFO L93 Difference]: Finished difference Result 256 states and 442 transitions. [2020-10-25 23:09:35,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-10-25 23:09:35,553 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 1033 [2020-10-25 23:09:35,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:09:35,558 INFO L225 Difference]: With dead ends: 256 [2020-10-25 23:09:35,558 INFO L226 Difference]: Without dead ends: 149 [2020-10-25 23:09:35,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1387 GetRequests, 1332 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=653, Invalid=2539, Unknown=0, NotChecked=0, Total=3192 [2020-10-25 23:09:35,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-25 23:09:35,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 127. [2020-10-25 23:09:35,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-25 23:09:35,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 183 transitions. [2020-10-25 23:09:35,583 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 183 transitions. Word has length 1033 [2020-10-25 23:09:35,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:09:35,585 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 183 transitions. [2020-10-25 23:09:35,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-25 23:09:35,585 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2020-10-25 23:09:35,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 748 [2020-10-25 23:09:35,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:09:35,592 INFO L422 BasicCegarLoop]: trace histogram [109, 109, 88, 54, 54, 54, 54, 54, 54, 54, 34, 21, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:09:35,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-25 23:09:35,802 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:09:35,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:09:35,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1513590258, now seen corresponding path program 8 times [2020-10-25 23:09:35,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:09:35,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909199500] [2020-10-25 23:09:35,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:09:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:36,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:36,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-25 23:09:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-25 23:09:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-25 23:09:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:37,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-25 23:09:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2020-10-25 23:09:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-25 23:09:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-25 23:09:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-25 23:09:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-25 23:09:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-25 23:09:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-25 23:09:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:38,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-25 23:09:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:09:40,114 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2020-10-25 23:09:40,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909199500] [2020-10-25 23:09:40,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513172122] [2020-10-25 23:09:40,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:09:40,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-25 23:09:40,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-25 23:09:40,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 220 conjunts are in the unsatisfiable core [2020-10-25 23:09:40,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:09:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2020-10-25 23:09:41,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 23:09:41,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 36 [2020-10-25 23:09:41,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881872829] [2020-10-25 23:09:41,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-25 23:09:41,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:09:41,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-25 23:09:41,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=1013, Unknown=0, NotChecked=0, Total=1260 [2020-10-25 23:09:41,340 INFO L87 Difference]: Start difference. First operand 127 states and 183 transitions. Second operand 36 states. [2020-10-25 23:09:41,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:09:41,676 INFO L93 Difference]: Finished difference Result 128 states and 184 transitions. [2020-10-25 23:09:41,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-25 23:09:41,677 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 747 [2020-10-25 23:09:41,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:09:41,679 INFO L225 Difference]: With dead ends: 128 [2020-10-25 23:09:41,679 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 23:09:41,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1186 GetRequests, 1151 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=271, Invalid=1061, Unknown=0, NotChecked=0, Total=1332 [2020-10-25 23:09:41,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 23:09:41,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 23:09:41,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 23:09:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 23:09:41,687 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 747 [2020-10-25 23:09:41,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:09:41,688 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 23:09:41,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-25 23:09:41,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 23:09:41,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 23:09:41,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:09:41,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 23:09:42,600 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 45 [2020-10-25 23:09:42,813 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 6 [2020-10-25 23:09:42,848 INFO L274 CegarLoopResult]: For program point fibonacciFINAL(lines 16 24) no Hoare annotation was computed. [2020-10-25 23:09:42,848 INFO L277 CegarLoopResult]: At program point fibonacciENTRY(lines 16 24) the Hoare annotation is: true [2020-10-25 23:09:42,848 INFO L270 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (and (= fibonacci_~n |fibonacci_#in~n|) (<= 2 |fibonacci_#in~n|)) [2020-10-25 23:09:42,848 INFO L274 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-10-25 23:09:42,849 INFO L270 CegarLoopResult]: At program point L22-2(line 22) the Hoare annotation is: (let ((.cse0 (= fibonacci_~n |fibonacci_#in~n|)) (.cse1 (<= 1 |fibonacci_#t~ret7|))) (or (and (<= 5 |fibonacci_#in~n|) .cse0 (<= 3 |fibonacci_#t~ret7|) (<= |fibonacci_#in~n| 5)) (and (<= 5 |fibonacci_#t~ret7|) .cse0 (<= fibonacci_~n 6) (<= 6 |fibonacci_#in~n|)) (and (<= 13 |fibonacci_#t~ret7|) (<= |fibonacci_#in~n| 8) .cse0 (<= 7 fibonacci_~n)) (and .cse0 (<= 8 |fibonacci_#t~ret7|) (<= 7 |fibonacci_#in~n|) (<= |fibonacci_#in~n| 7)) (and (<= 4 |fibonacci_#in~n|) (<= 2 |fibonacci_#t~ret7|) .cse0 (<= |fibonacci_#in~n| 4)) (and (<= 8 |fibonacci_#in~n|) .cse0 (<= 21 |fibonacci_#t~ret7|)) (and (<= |fibonacci_#in~n| 2) .cse0 .cse1 (<= 2 |fibonacci_#in~n|)) (and (<= |fibonacci_#in~n| 3) .cse0 (<= 3 |fibonacci_#in~n|) .cse1))) [2020-10-25 23:09:42,849 INFO L274 CegarLoopResult]: For program point L19(lines 19 23) no Hoare annotation was computed. [2020-10-25 23:09:42,849 INFO L274 CegarLoopResult]: For program point L22-3(line 22) no Hoare annotation was computed. [2020-10-25 23:09:42,849 INFO L274 CegarLoopResult]: For program point fibonacciEXIT(lines 16 24) no Hoare annotation was computed. [2020-10-25 23:09:42,849 INFO L274 CegarLoopResult]: For program point L17(lines 17 23) no Hoare annotation was computed. [2020-10-25 23:09:42,849 INFO L274 CegarLoopResult]: For program point L33(lines 33 37) no Hoare annotation was computed. [2020-10-25 23:09:42,849 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 23:09:42,849 INFO L277 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: true [2020-10-25 23:09:42,849 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 23:09:42,850 INFO L274 CegarLoopResult]: For program point L32-1(line 32) no Hoare annotation was computed. [2020-10-25 23:09:42,850 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 23:09:42,850 INFO L274 CegarLoopResult]: For program point L29(lines 29 31) no Hoare annotation was computed. [2020-10-25 23:09:42,852 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 23:09:42,852 INFO L277 CegarLoopResult]: At program point L27(lines 27 38) the Hoare annotation is: true [2020-10-25 23:09:42,852 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 23:09:42,852 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-25 23:09:42,852 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 23:09:42,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:09:42 BoogieIcfgContainer [2020-10-25 23:09:42,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:09:42,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:09:42,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:09:42,864 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:09:42,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:09:14" (3/4) ... [2020-10-25 23:09:42,868 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 23:09:42,875 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fibonacci [2020-10-25 23:09:42,881 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-25 23:09:42,882 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 23:09:42,882 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 23:09:42,882 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 23:09:42,924 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:09:42,924 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:09:42,925 INFO L168 Benchmark]: Toolchain (without parser) took 28774.89 ms. Allocated memory was 44.0 MB in the beginning and 1.6 GB in the end (delta: 1.6 GB). Free memory was 21.9 MB in the beginning and 634.4 MB in the end (delta: -612.5 MB). Peak memory consumption was 955.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:09:42,926 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 44.0 MB. Free memory was 29.3 MB in the beginning and 29.3 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:09:42,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.47 ms. Allocated memory is still 44.0 MB. Free memory was 21.2 MB in the beginning and 23.4 MB in the end (delta: -2.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-25 23:09:42,927 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.07 ms. Allocated memory is still 44.0 MB. Free memory was 23.4 MB in the beginning and 22.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:09:42,927 INFO L168 Benchmark]: Boogie Preprocessor took 36.39 ms. Allocated memory is still 44.0 MB. Free memory was 22.0 MB in the beginning and 21.0 MB in the end (delta: 936.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:09:42,928 INFO L168 Benchmark]: RCFGBuilder took 339.79 ms. Allocated memory is still 44.0 MB. Free memory was 21.0 MB in the beginning and 19.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:09:42,929 INFO L168 Benchmark]: TraceAbstraction took 27996.03 ms. Allocated memory was 54.5 MB in the beginning and 1.6 GB in the end (delta: 1.6 GB). Free memory was 39.1 MB in the beginning and 636.5 MB in the end (delta: -597.4 MB). Peak memory consumption was 956.8 MB. Max. memory is 16.1 GB. [2020-10-25 23:09:42,929 INFO L168 Benchmark]: Witness Printer took 60.96 ms. Allocated memory is still 1.6 GB. Free memory was 636.5 MB in the beginning and 634.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:09:42,932 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 44.0 MB. Free memory was 29.3 MB in the beginning and 29.3 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 285.47 ms. Allocated memory is still 44.0 MB. Free memory was 21.2 MB in the beginning and 23.4 MB in the end (delta: -2.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.07 ms. Allocated memory is still 44.0 MB. Free memory was 23.4 MB in the beginning and 22.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.39 ms. Allocated memory is still 44.0 MB. Free memory was 22.0 MB in the beginning and 21.0 MB in the end (delta: 936.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 339.79 ms. Allocated memory is still 44.0 MB. Free memory was 21.0 MB in the beginning and 19.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27996.03 ms. Allocated memory was 54.5 MB in the beginning and 1.6 GB in the end (delta: 1.6 GB). Free memory was 39.1 MB in the beginning and 636.5 MB in the end (delta: -597.4 MB). Peak memory consumption was 956.8 MB. Max. memory is 16.1 GB. * Witness Printer took 60.96 ms. Allocated memory is still 1.6 GB. Free memory was 636.5 MB in the beginning and 634.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 27]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.8s, OverallIterations: 11, TraceHistogramMax: 151, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 272 SDtfs, 856 SDslu, 1158 SDs, 0 SdLazy, 2181 SolverSat, 900 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4254 GetRequests, 4004 SyntacticMatches, 2 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2052 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 63 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 287 PreInvPairs, 378 NumberOfFragments, 112 HoareAnnotationTreeSize, 287 FomulaSimplifications, 776 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 5 FomulaSimplificationsInter, 2535 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 5947 NumberOfCodeBlocks, 5574 NumberOfCodeBlocksAsserted, 94 NumberOfCheckSat, 5927 ConstructedInterpolants, 0 QuantifiedInterpolants, 6253183 SizeOfPredicates, 57 NumberOfNonLiveVariables, 5971 ConjunctsInSsa, 334 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 206909/240922 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...