./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label26.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem01_label26.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 8e198b4bdd7ce63ff82d99d349e5e88185510800 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:44:24,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 19:44:24,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 19:44:24,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 19:44:24,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 19:44:24,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 19:44:24,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 19:44:24,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 19:44:24,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 19:44:25,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 19:44:25,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 19:44:25,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 19:44:25,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 19:44:25,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 19:44:25,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 19:44:25,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 19:44:25,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 19:44:25,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 19:44:25,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 19:44:25,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 19:44:25,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 19:44:25,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 19:44:25,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 19:44:25,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 19:44:25,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 19:44:25,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 19:44:25,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 19:44:25,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 19:44:25,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 19:44:25,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 19:44:25,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 19:44:25,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 19:44:25,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 19:44:25,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 19:44:25,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 19:44:25,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 19:44:25,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 19:44:25,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 19:44:25,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 19:44:25,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 19:44:25,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 19:44:25,070 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 19:44:25,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 19:44:25,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 19:44:25,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 19:44:25,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 19:44:25,140 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 19:44:25,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 19:44:25,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 19:44:25,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 19:44:25,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 19:44:25,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 19:44:25,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 19:44:25,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 19:44:25,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 19:44:25,143 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 19:44:25,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 19:44:25,143 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 19:44:25,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 19:44:25,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 19:44:25,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 19:44:25,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 19:44:25,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 19:44:25,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 19:44:25,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 19:44:25,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 19:44:25,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 19:44:25,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 19:44:25,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 19:44:25,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 19:44:25,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 19:44:25,147 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e198b4bdd7ce63ff82d99d349e5e88185510800 [2020-10-25 19:44:25,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 19:44:25,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 19:44:25,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 19:44:25,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 19:44:25,574 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 19:44:25,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label26.c [2020-10-25 19:44:25,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2d511215/27fe562c6c6646fa8044236b9a61962f/FLAG46030c836 [2020-10-25 19:44:26,489 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 19:44:26,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label26.c [2020-10-25 19:44:26,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2d511215/27fe562c6c6646fa8044236b9a61962f/FLAG46030c836 [2020-10-25 19:44:26,715 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2d511215/27fe562c6c6646fa8044236b9a61962f [2020-10-25 19:44:26,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 19:44:26,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 19:44:26,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 19:44:26,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 19:44:26,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 19:44:26,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:44:26" (1/1) ... [2020-10-25 19:44:26,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2863488c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:44:26, skipping insertion in model container [2020-10-25 19:44:26,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 07:44:26" (1/1) ... [2020-10-25 19:44:26,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 19:44:26,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 19:44:27,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:44:27,319 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 19:44:27,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 19:44:27,470 INFO L208 MainTranslator]: Completed translation [2020-10-25 19:44:27,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:44:27 WrapperNode [2020-10-25 19:44:27,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 19:44:27,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 19:44:27,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 19:44:27,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 19:44:27,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:44:27" (1/1) ... [2020-10-25 19:44:27,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:44:27" (1/1) ... [2020-10-25 19:44:27,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 19:44:27,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 19:44:27,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 19:44:27,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 19:44:27,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:44:27" (1/1) ... [2020-10-25 19:44:27,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:44:27" (1/1) ... [2020-10-25 19:44:27,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:44:27" (1/1) ... [2020-10-25 19:44:27,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:44:27" (1/1) ... [2020-10-25 19:44:27,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:44:27" (1/1) ... [2020-10-25 19:44:27,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:44:27" (1/1) ... [2020-10-25 19:44:27,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:44:27" (1/1) ... [2020-10-25 19:44:27,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 19:44:27,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 19:44:27,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 19:44:27,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 19:44:27,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:44:27" (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 19:44:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 19:44:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 19:44:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 19:44:27,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 19:44:29,394 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 19:44:29,394 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 19:44:29,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:44:29 BoogieIcfgContainer [2020-10-25 19:44:29,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 19:44:29,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 19:44:29,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 19:44:29,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 19:44:29,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 07:44:26" (1/3) ... [2020-10-25 19:44:29,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c1a8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:44:29, skipping insertion in model container [2020-10-25 19:44:29,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 07:44:27" (2/3) ... [2020-10-25 19:44:29,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c1a8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 07:44:29, skipping insertion in model container [2020-10-25 19:44:29,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:44:29" (3/3) ... [2020-10-25 19:44:29,406 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2020-10-25 19:44:29,418 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 19:44:29,425 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 19:44:29,440 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 19:44:29,472 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 19:44:29,472 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 19:44:29,472 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 19:44:29,473 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 19:44:29,473 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 19:44:29,473 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 19:44:29,473 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 19:44:29,473 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 19:44:29,495 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-10-25 19:44:29,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-25 19:44:29,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:44:29,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:44:29,510 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:44:29,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:44:29,517 INFO L82 PathProgramCache]: Analyzing trace with hash -583926962, now seen corresponding path program 1 times [2020-10-25 19:44:29,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:44:29,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523361395] [2020-10-25 19:44:29,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:44:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:30,081 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 19:44:30,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523361395] [2020-10-25 19:44:30,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:44:30,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:44:30,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747508204] [2020-10-25 19:44:30,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:44:30,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:44:30,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:44:30,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:44:30,114 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-10-25 19:44:31,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:44:31,363 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-10-25 19:44:31,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:44:31,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-10-25 19:44:31,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:44:31,381 INFO L225 Difference]: With dead ends: 529 [2020-10-25 19:44:31,381 INFO L226 Difference]: Without dead ends: 266 [2020-10-25 19:44:31,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:44:31,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-25 19:44:31,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-25 19:44:31,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-25 19:44:31,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 386 transitions. [2020-10-25 19:44:31,458 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 386 transitions. Word has length 103 [2020-10-25 19:44:31,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:44:31,459 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 386 transitions. [2020-10-25 19:44:31,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:44:31,459 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 386 transitions. [2020-10-25 19:44:31,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-25 19:44:31,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:44:31,462 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:44:31,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 19:44:31,463 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:44:31,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:44:31,464 INFO L82 PathProgramCache]: Analyzing trace with hash 481712025, now seen corresponding path program 1 times [2020-10-25 19:44:31,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:44:31,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452147274] [2020-10-25 19:44:31,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:44:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:31,562 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:44:31,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452147274] [2020-10-25 19:44:31,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:44:31,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:44:31,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828689546] [2020-10-25 19:44:31,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:44:31,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:44:31,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:44:31,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:44:31,566 INFO L87 Difference]: Start difference. First operand 266 states and 386 transitions. Second operand 3 states. [2020-10-25 19:44:32,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:44:32,318 INFO L93 Difference]: Finished difference Result 792 states and 1153 transitions. [2020-10-25 19:44:32,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:44:32,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-10-25 19:44:32,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:44:32,327 INFO L225 Difference]: With dead ends: 792 [2020-10-25 19:44:32,327 INFO L226 Difference]: Without dead ends: 528 [2020-10-25 19:44:32,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:44:32,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-10-25 19:44:32,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-10-25 19:44:32,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-25 19:44:32,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 727 transitions. [2020-10-25 19:44:32,377 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 727 transitions. Word has length 109 [2020-10-25 19:44:32,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:44:32,377 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 727 transitions. [2020-10-25 19:44:32,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:44:32,378 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 727 transitions. [2020-10-25 19:44:32,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-25 19:44:32,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:44:32,383 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:44:32,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 19:44:32,383 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:44:32,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:44:32,384 INFO L82 PathProgramCache]: Analyzing trace with hash -241255271, now seen corresponding path program 1 times [2020-10-25 19:44:32,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:44:32,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464810299] [2020-10-25 19:44:32,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:44:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:32,785 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 19:44:32,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464810299] [2020-10-25 19:44:32,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:44:32,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:44:32,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914631835] [2020-10-25 19:44:32,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 19:44:32,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:44:32,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 19:44:32,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:44:32,806 INFO L87 Difference]: Start difference. First operand 528 states and 727 transitions. Second operand 4 states. [2020-10-25 19:44:33,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:44:33,898 INFO L93 Difference]: Finished difference Result 1411 states and 1930 transitions. [2020-10-25 19:44:33,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 19:44:33,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2020-10-25 19:44:33,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:44:33,904 INFO L225 Difference]: With dead ends: 1411 [2020-10-25 19:44:33,905 INFO L226 Difference]: Without dead ends: 790 [2020-10-25 19:44:33,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 19:44:33,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2020-10-25 19:44:33,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 659. [2020-10-25 19:44:33,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-10-25 19:44:33,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 813 transitions. [2020-10-25 19:44:33,954 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 813 transitions. Word has length 110 [2020-10-25 19:44:33,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:44:33,954 INFO L481 AbstractCegarLoop]: Abstraction has 659 states and 813 transitions. [2020-10-25 19:44:33,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 19:44:33,954 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 813 transitions. [2020-10-25 19:44:33,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-25 19:44:33,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:44:33,961 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:44:33,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 19:44:33,962 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:44:33,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:44:33,963 INFO L82 PathProgramCache]: Analyzing trace with hash 2058278146, now seen corresponding path program 1 times [2020-10-25 19:44:33,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:44:33,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745886503] [2020-10-25 19:44:33,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:44:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:34,102 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-25 19:44:34,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745886503] [2020-10-25 19:44:34,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:44:34,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 19:44:34,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520923243] [2020-10-25 19:44:34,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:44:34,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:44:34,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:44:34,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:44:34,109 INFO L87 Difference]: Start difference. First operand 659 states and 813 transitions. Second operand 3 states. [2020-10-25 19:44:34,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:44:34,806 INFO L93 Difference]: Finished difference Result 1578 states and 1974 transitions. [2020-10-25 19:44:34,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:44:34,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-10-25 19:44:34,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:44:34,814 INFO L225 Difference]: With dead ends: 1578 [2020-10-25 19:44:34,814 INFO L226 Difference]: Without dead ends: 921 [2020-10-25 19:44:34,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:44:34,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-10-25 19:44:34,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 790. [2020-10-25 19:44:34,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-10-25 19:44:34,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 956 transitions. [2020-10-25 19:44:34,858 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 956 transitions. Word has length 120 [2020-10-25 19:44:34,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:44:34,858 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 956 transitions. [2020-10-25 19:44:34,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:44:34,858 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 956 transitions. [2020-10-25 19:44:34,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-25 19:44:34,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:44:34,866 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:44:34,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 19:44:34,866 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:44:34,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:44:34,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1912917346, now seen corresponding path program 1 times [2020-10-25 19:44:34,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:44:34,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053042254] [2020-10-25 19:44:34,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:44:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:35,003 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-25 19:44:35,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053042254] [2020-10-25 19:44:35,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 19:44:35,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 19:44:35,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780504286] [2020-10-25 19:44:35,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:44:35,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:44:35,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:44:35,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:44:35,006 INFO L87 Difference]: Start difference. First operand 790 states and 956 transitions. Second operand 3 states. [2020-10-25 19:44:35,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:44:35,643 INFO L93 Difference]: Finished difference Result 2102 states and 2521 transitions. [2020-10-25 19:44:35,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:44:35,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-10-25 19:44:35,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:44:35,650 INFO L225 Difference]: With dead ends: 2102 [2020-10-25 19:44:35,651 INFO L226 Difference]: Without dead ends: 1314 [2020-10-25 19:44:35,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 19:44:35,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-10-25 19:44:35,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1052. [2020-10-25 19:44:35,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-10-25 19:44:35,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1268 transitions. [2020-10-25 19:44:35,696 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1268 transitions. Word has length 129 [2020-10-25 19:44:35,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:44:35,697 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1268 transitions. [2020-10-25 19:44:35,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:44:35,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1268 transitions. [2020-10-25 19:44:35,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-25 19:44:35,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:44:35,703 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:44:35,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 19:44:35,703 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:44:35,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:44:35,704 INFO L82 PathProgramCache]: Analyzing trace with hash -784284721, now seen corresponding path program 1 times [2020-10-25 19:44:35,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:44:35,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842803165] [2020-10-25 19:44:35,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:44:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:35,818 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-25 19:44:35,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842803165] [2020-10-25 19:44:35,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350743973] [2020-10-25 19:44:35,819 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 19:44:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:35,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:44:35,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:44:36,161 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-25 19:44:36,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:44:36,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-25 19:44:36,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621868983] [2020-10-25 19:44:36,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:44:36,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:44:36,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:44:36,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:44:36,165 INFO L87 Difference]: Start difference. First operand 1052 states and 1268 transitions. Second operand 3 states. [2020-10-25 19:44:36,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:44:36,912 INFO L93 Difference]: Finished difference Result 3019 states and 3665 transitions. [2020-10-25 19:44:36,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:44:36,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-10-25 19:44:36,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:44:36,930 INFO L225 Difference]: With dead ends: 3019 [2020-10-25 19:44:36,931 INFO L226 Difference]: Without dead ends: 1969 [2020-10-25 19:44:36,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:44:36,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-10-25 19:44:37,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1969. [2020-10-25 19:44:37,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-10-25 19:44:37,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2307 transitions. [2020-10-25 19:44:37,018 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2307 transitions. Word has length 135 [2020-10-25 19:44:37,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:44:37,021 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2307 transitions. [2020-10-25 19:44:37,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:44:37,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2307 transitions. [2020-10-25 19:44:37,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-25 19:44:37,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:44:37,028 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:44:37,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-25 19:44:37,244 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:44:37,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:44:37,244 INFO L82 PathProgramCache]: Analyzing trace with hash -728514295, now seen corresponding path program 1 times [2020-10-25 19:44:37,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:44:37,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433098408] [2020-10-25 19:44:37,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:44:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:37,358 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-25 19:44:37,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433098408] [2020-10-25 19:44:37,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37144292] [2020-10-25 19:44:37,360 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 19:44:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:37,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:44:37,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:44:37,609 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-25 19:44:37,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:44:37,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-25 19:44:37,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598716875] [2020-10-25 19:44:37,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:44:37,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:44:37,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:44:37,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:44:37,614 INFO L87 Difference]: Start difference. First operand 1969 states and 2307 transitions. Second operand 3 states. [2020-10-25 19:44:38,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:44:38,430 INFO L93 Difference]: Finished difference Result 4329 states and 5115 transitions. [2020-10-25 19:44:38,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:44:38,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-10-25 19:44:38,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:44:38,444 INFO L225 Difference]: With dead ends: 4329 [2020-10-25 19:44:38,445 INFO L226 Difference]: Without dead ends: 2362 [2020-10-25 19:44:38,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:44:38,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-10-25 19:44:38,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2100. [2020-10-25 19:44:38,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-10-25 19:44:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2462 transitions. [2020-10-25 19:44:38,500 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2462 transitions. Word has length 147 [2020-10-25 19:44:38,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:44:38,501 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2462 transitions. [2020-10-25 19:44:38,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:44:38,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2462 transitions. [2020-10-25 19:44:38,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-25 19:44:38,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:44:38,506 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:44:38,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:44:38,720 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:44:38,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:44:38,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1058769664, now seen corresponding path program 1 times [2020-10-25 19:44:38,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:44:38,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379634942] [2020-10-25 19:44:38,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:44:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:38,816 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-25 19:44:38,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379634942] [2020-10-25 19:44:38,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298325319] [2020-10-25 19:44:38,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:44:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:38,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:44:38,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:44:39,023 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-10-25 19:44:39,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:44:39,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-25 19:44:39,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699506374] [2020-10-25 19:44:39,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:44:39,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:44:39,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:44:39,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:44:39,027 INFO L87 Difference]: Start difference. First operand 2100 states and 2462 transitions. Second operand 3 states. [2020-10-25 19:44:39,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:44:39,639 INFO L93 Difference]: Finished difference Result 4329 states and 5077 transitions. [2020-10-25 19:44:39,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:44:39,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-10-25 19:44:39,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:44:39,651 INFO L225 Difference]: With dead ends: 4329 [2020-10-25 19:44:39,651 INFO L226 Difference]: Without dead ends: 2231 [2020-10-25 19:44:39,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:44:39,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-10-25 19:44:39,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2231. [2020-10-25 19:44:39,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-10-25 19:44:39,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2536 transitions. [2020-10-25 19:44:39,706 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2536 transitions. Word has length 154 [2020-10-25 19:44:39,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:44:39,707 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 2536 transitions. [2020-10-25 19:44:39,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:44:39,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2536 transitions. [2020-10-25 19:44:39,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-25 19:44:39,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:44:39,713 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:44:39,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:44:39,927 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:44:39,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:44:39,929 INFO L82 PathProgramCache]: Analyzing trace with hash -781255763, now seen corresponding path program 1 times [2020-10-25 19:44:39,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:44:39,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31406751] [2020-10-25 19:44:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:44:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:40,023 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 67 proven. 3 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-25 19:44:40,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31406751] [2020-10-25 19:44:40,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971848436] [2020-10-25 19:44:40,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:44:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:40,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:44:40,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:44:40,212 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-10-25 19:44:40,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:44:40,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-25 19:44:40,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186926161] [2020-10-25 19:44:40,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:44:40,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:44:40,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:44:40,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:44:40,215 INFO L87 Difference]: Start difference. First operand 2231 states and 2536 transitions. Second operand 3 states. [2020-10-25 19:44:41,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:44:41,227 INFO L93 Difference]: Finished difference Result 5508 states and 6295 transitions. [2020-10-25 19:44:41,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:44:41,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-10-25 19:44:41,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:44:41,243 INFO L225 Difference]: With dead ends: 5508 [2020-10-25 19:44:41,244 INFO L226 Difference]: Without dead ends: 3279 [2020-10-25 19:44:41,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:44:41,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2020-10-25 19:44:41,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2755. [2020-10-25 19:44:41,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2020-10-25 19:44:41,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3124 transitions. [2020-10-25 19:44:41,338 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3124 transitions. Word has length 163 [2020-10-25 19:44:41,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:44:41,338 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 3124 transitions. [2020-10-25 19:44:41,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:44:41,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3124 transitions. [2020-10-25 19:44:41,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-25 19:44:41,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:44:41,346 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:44:41,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:44:41,561 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:44:41,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:44:41,562 INFO L82 PathProgramCache]: Analyzing trace with hash -308442483, now seen corresponding path program 1 times [2020-10-25 19:44:41,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:44:41,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128044713] [2020-10-25 19:44:41,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:44:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:41,637 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 53 proven. 3 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-10-25 19:44:41,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128044713] [2020-10-25 19:44:41,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302150517] [2020-10-25 19:44:41,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:44:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:41,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:44:41,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:44:41,820 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-25 19:44:41,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:44:41,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-25 19:44:41,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684025755] [2020-10-25 19:44:41,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:44:41,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:44:41,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:44:41,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:44:41,823 INFO L87 Difference]: Start difference. First operand 2755 states and 3124 transitions. Second operand 3 states. [2020-10-25 19:44:42,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:44:42,442 INFO L93 Difference]: Finished difference Result 6032 states and 6829 transitions. [2020-10-25 19:44:42,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:44:42,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2020-10-25 19:44:42,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:44:42,457 INFO L225 Difference]: With dead ends: 6032 [2020-10-25 19:44:42,457 INFO L226 Difference]: Without dead ends: 3148 [2020-10-25 19:44:42,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:44:42,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2020-10-25 19:44:42,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 2362. [2020-10-25 19:44:42,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-10-25 19:44:42,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2604 transitions. [2020-10-25 19:44:42,517 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2604 transitions. Word has length 166 [2020-10-25 19:44:42,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:44:42,518 INFO L481 AbstractCegarLoop]: Abstraction has 2362 states and 2604 transitions. [2020-10-25 19:44:42,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:44:42,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2604 transitions. [2020-10-25 19:44:42,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-25 19:44:42,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 19:44:42,525 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 19:44:42,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-25 19:44:42,741 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 19:44:42,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 19:44:42,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1961853284, now seen corresponding path program 1 times [2020-10-25 19:44:42,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 19:44:42,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054634691] [2020-10-25 19:44:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 19:44:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 86 proven. 3 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-25 19:44:42,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054634691] [2020-10-25 19:44:42,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859514505] [2020-10-25 19:44:42,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:44:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 19:44:43,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 19:44:43,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 19:44:43,091 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-25 19:44:43,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 19:44:43,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-25 19:44:43,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455062712] [2020-10-25 19:44:43,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 19:44:43,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 19:44:43,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 19:44:43,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:44:43,094 INFO L87 Difference]: Start difference. First operand 2362 states and 2604 transitions. Second operand 3 states. [2020-10-25 19:44:43,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 19:44:43,717 INFO L93 Difference]: Finished difference Result 4458 states and 4930 transitions. [2020-10-25 19:44:43,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 19:44:43,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 223 [2020-10-25 19:44:43,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 19:44:43,718 INFO L225 Difference]: With dead ends: 4458 [2020-10-25 19:44:43,718 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 19:44:43,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 19:44:43,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 19:44:43,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 19:44:43,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 19:44:43,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 19:44:43,725 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 223 [2020-10-25 19:44:43,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 19:44:43,726 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 19:44:43,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 19:44:43,726 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 19:44:43,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 19:44:43,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 19:44:43,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 19:44:44,430 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2020-10-25 19:44:44,825 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2020-10-25 19:44:44,829 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,829 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,830 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,830 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,830 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,830 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,830 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-25 19:44:44,830 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-25 19:44:44,830 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-25 19:44:44,830 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-25 19:44:44,830 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-25 19:44:44,831 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-25 19:44:44,831 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-25 19:44:44,831 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-25 19:44:44,831 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-25 19:44:44,831 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-25 19:44:44,831 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 19:44:44,831 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-25 19:44:44,831 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-25 19:44:44,831 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,831 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,832 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,832 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,832 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,832 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,832 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-25 19:44:44,832 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-25 19:44:44,832 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-25 19:44:44,832 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-25 19:44:44,832 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-25 19:44:44,832 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-25 19:44:44,833 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-25 19:44:44,833 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-25 19:44:44,833 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-25 19:44:44,833 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-25 19:44:44,833 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,833 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,833 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,833 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,833 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,833 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,834 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-25 19:44:44,834 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-25 19:44:44,834 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-25 19:44:44,834 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-25 19:44:44,834 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-25 19:44:44,834 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-25 19:44:44,834 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-25 19:44:44,834 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-25 19:44:44,834 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-25 19:44:44,834 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-25 19:44:44,834 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-25 19:44:44,835 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-25 19:44:44,835 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-25 19:44:44,835 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-25 19:44:44,835 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-25 19:44:44,835 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,835 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,835 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,835 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,835 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,835 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-25 19:44:44,836 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-25 19:44:44,836 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-25 19:44:44,836 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-25 19:44:44,836 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-25 19:44:44,836 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-25 19:44:44,836 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-25 19:44:44,836 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-25 19:44:44,836 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-25 19:44:44,837 INFO L270 CegarLoopResult]: At program point L576(lines 32 577) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 0)) (.cse4 (= ~a20~0 1)) (.cse5 (<= ~a8~0 14)) (.cse1 (<= ~a7~0 0)) (.cse2 (<= 15 ~a8~0)) (.cse7 (= ~a21~0 1)) (.cse6 (<= ~a16~0 5)) (.cse8 (= ~a17~0 1)) (.cse3 (<= ~a20~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4) (and .cse5 .cse4) (and .cse6 .cse0 .cse3) (and .cse5 .cse6 .cse3) (and .cse7 (= ~a12~0 8) .cse1 .cse4 .cse8) (and .cse0 .cse4 (<= 5 ~a16~0)) (and .cse5 .cse6 (<= ~a21~0 0)) (and .cse7 .cse1 .cse8 .cse2 .cse3) (and .cse7 .cse6 .cse8 .cse3))) [2020-10-25 19:44:44,837 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,837 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,837 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,837 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,837 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,838 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-25 19:44:44,838 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-25 19:44:44,838 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-25 19:44:44,838 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-25 19:44:44,838 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-25 19:44:44,838 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-25 19:44:44,838 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-25 19:44:44,838 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-25 19:44:44,838 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-25 19:44:44,838 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-25 19:44:44,839 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-25 19:44:44,839 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-25 19:44:44,839 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-25 19:44:44,839 INFO L277 CegarLoopResult]: At program point L579(lines 579 596) the Hoare annotation is: true [2020-10-25 19:44:44,839 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,839 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,839 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,839 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,839 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,839 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-25 19:44:44,840 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-25 19:44:44,840 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-25 19:44:44,840 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-25 19:44:44,840 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-25 19:44:44,840 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-25 19:44:44,840 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-25 19:44:44,840 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-25 19:44:44,840 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 19:44:44,840 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-25 19:44:44,840 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,841 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,841 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,841 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,841 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-25 19:44:44,841 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,841 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-25 19:44:44,841 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-25 19:44:44,841 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-25 19:44:44,841 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-25 19:44:44,841 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-25 19:44:44,842 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-25 19:44:44,842 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-25 19:44:44,842 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-25 19:44:44,842 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-25 19:44:44,842 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-25 19:44:44,842 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-25 19:44:44,842 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-25 19:44:44,842 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-25 19:44:44,842 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,843 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 0)) (.cse4 (= ~a20~0 1)) (.cse5 (<= ~a8~0 14)) (.cse1 (<= ~a7~0 0)) (.cse2 (<= 15 ~a8~0)) (.cse7 (= ~a21~0 1)) (.cse6 (<= ~a16~0 5)) (.cse8 (= ~a17~0 1)) (.cse3 (<= ~a20~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4) (and .cse5 .cse4) (and .cse6 .cse0 .cse3) (and .cse5 .cse6 .cse3) (and .cse7 (= ~a12~0 8) .cse1 .cse4 .cse8) (and .cse0 .cse4 (<= 5 ~a16~0)) (and .cse5 .cse6 (<= ~a21~0 0)) (and .cse7 .cse1 .cse8 .cse2 .cse3) (and .cse7 .cse6 .cse8 .cse3))) [2020-10-25 19:44:44,843 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,843 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,843 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,843 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,843 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-25 19:44:44,843 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-25 19:44:44,843 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-25 19:44:44,843 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-25 19:44:44,844 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-25 19:44:44,844 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-25 19:44:44,844 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-25 19:44:44,844 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 19:44:44,844 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-25 19:44:44,844 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,844 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,844 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,844 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,844 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,845 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-25 19:44:44,845 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-25 19:44:44,845 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-25 19:44:44,845 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-25 19:44:44,845 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-25 19:44:44,845 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-25 19:44:44,845 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-25 19:44:44,845 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-25 19:44:44,845 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-25 19:44:44,845 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-25 19:44:44,846 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 19:44:44,846 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-25 19:44:44,846 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-25 19:44:44,846 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,846 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,846 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,846 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,846 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-25 19:44:44,846 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,846 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,847 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-25 19:44:44,847 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-25 19:44:44,847 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-25 19:44:44,847 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-25 19:44:44,847 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-25 19:44:44,847 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-25 19:44:44,847 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-25 19:44:44,847 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-25 19:44:44,847 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-25 19:44:44,847 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-25 19:44:44,848 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-25 19:44:44,848 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-25 19:44:44,848 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 19:44:44,848 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 19:44:44,848 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,848 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,848 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,848 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,848 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,849 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-25 19:44:44,849 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-25 19:44:44,849 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-25 19:44:44,849 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-25 19:44:44,849 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-25 19:44:44,849 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-25 19:44:44,849 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-25 19:44:44,849 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-25 19:44:44,849 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-25 19:44:44,849 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-25 19:44:44,850 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-25 19:44:44,850 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-25 19:44:44,850 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-25 19:44:44,850 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-25 19:44:44,850 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-25 19:44:44,850 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-25 19:44:44,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 07:44:44 BoogieIcfgContainer [2020-10-25 19:44:44,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 19:44:44,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 19:44:44,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 19:44:44,876 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 19:44:44,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 07:44:29" (3/4) ... [2020-10-25 19:44:44,880 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 19:44:44,916 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 19:44:44,918 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 19:44:44,919 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:44:44,920 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 19:44:45,127 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 19:44:45,127 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 19:44:45,129 INFO L168 Benchmark]: Toolchain (without parser) took 18408.61 ms. Allocated memory was 48.2 MB in the beginning and 257.9 MB in the end (delta: 209.7 MB). Free memory was 31.2 MB in the beginning and 154.9 MB in the end (delta: -123.6 MB). Peak memory consumption was 85.2 MB. Max. memory is 16.1 GB. [2020-10-25 19:44:45,130 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 39.8 MB. Free memory was 25.3 MB in the beginning and 25.3 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 19:44:45,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.72 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 26.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2020-10-25 19:44:45,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.24 ms. Allocated memory is still 48.2 MB. Free memory was 25.8 MB in the beginning and 20.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-25 19:44:45,132 INFO L168 Benchmark]: Boogie Preprocessor took 89.13 ms. Allocated memory is still 48.2 MB. Free memory was 20.2 MB in the beginning and 25.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-10-25 19:44:45,132 INFO L168 Benchmark]: RCFGBuilder took 1745.53 ms. Allocated memory was 48.2 MB in the beginning and 71.3 MB in the end (delta: 23.1 MB). Free memory was 25.1 MB in the beginning and 39.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. [2020-10-25 19:44:45,133 INFO L168 Benchmark]: TraceAbstraction took 15476.41 ms. Allocated memory was 71.3 MB in the beginning and 257.9 MB in the end (delta: 186.6 MB). Free memory was 38.9 MB in the beginning and 170.6 MB in the end (delta: -131.7 MB). Peak memory consumption was 151.8 MB. Max. memory is 16.1 GB. [2020-10-25 19:44:45,133 INFO L168 Benchmark]: Witness Printer took 252.13 ms. Allocated memory is still 257.9 MB. Free memory was 170.6 MB in the beginning and 154.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-10-25 19:44:45,136 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 39.8 MB. Free memory was 25.3 MB in the beginning and 25.3 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 743.72 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 26.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.24 ms. Allocated memory is still 48.2 MB. Free memory was 25.8 MB in the beginning and 20.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.13 ms. Allocated memory is still 48.2 MB. Free memory was 20.2 MB in the beginning and 25.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1745.53 ms. Allocated memory was 48.2 MB in the beginning and 71.3 MB in the end (delta: 23.1 MB). Free memory was 25.1 MB in the beginning and 39.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15476.41 ms. Allocated memory was 71.3 MB in the beginning and 257.9 MB in the end (delta: 186.6 MB). Free memory was 38.9 MB in the beginning and 170.6 MB in the end (delta: -131.7 MB). Peak memory consumption was 151.8 MB. Max. memory is 16.1 GB. * Witness Printer took 252.13 ms. Allocated memory is still 257.9 MB. Free memory was 170.6 MB in the beginning and 154.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 579]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((((((a17 <= 0 && a7 <= 0) && 15 <= a8) && a20 <= 0) || ((a17 <= 0 && a7 <= 0) && a20 == 1)) || (a8 <= 14 && a20 == 1)) || ((a16 <= 5 && a17 <= 0) && a20 <= 0)) || ((a8 <= 14 && a16 <= 5) && a20 <= 0)) || ((((a21 == 1 && a12 == 8) && a7 <= 0) && a20 == 1) && a17 == 1)) || ((a17 <= 0 && a20 == 1) && 5 <= a16)) || ((a8 <= 14 && a16 <= 5) && a21 <= 0)) || ((((a21 == 1 && a7 <= 0) && a17 == 1) && 15 <= a8) && a20 <= 0)) || (((a21 == 1 && a16 <= 5) && a17 == 1) && a20 <= 0) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((a17 <= 0 && a7 <= 0) && 15 <= a8) && a20 <= 0) || ((a17 <= 0 && a7 <= 0) && a20 == 1)) || (a8 <= 14 && a20 == 1)) || ((a16 <= 5 && a17 <= 0) && a20 <= 0)) || ((a8 <= 14 && a16 <= 5) && a20 <= 0)) || ((((a21 == 1 && a12 == 8) && a7 <= 0) && a20 == 1) && a17 == 1)) || ((a17 <= 0 && a20 == 1) && 5 <= a16)) || ((a8 <= 14 && a16 <= 5) && a21 <= 0)) || ((((a21 == 1 && a7 <= 0) && a17 == 1) && 15 <= a8) && a20 <= 0)) || (((a21 == 1 && a16 <= 5) && a17 == 1) && a20 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.4s, OverallIterations: 11, TraceHistogramMax: 7, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 943 SDtfs, 996 SDslu, 63 SDs, 0 SdLazy, 3750 SolverSat, 568 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1012 GetRequests, 988 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2755occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 2096 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 233 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1374 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 462 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 2547 NumberOfCodeBlocks, 2547 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2530 ConstructedInterpolants, 0 QuantifiedInterpolants, 929517 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2258 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 1580/1598 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...