./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label29.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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_label29.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 2f0f9ff38f9b3a9f7f39491e79843407ac53fbed ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 22:30:08,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:30:08,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:30:08,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:30:08,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:30:08,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:30:08,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:30:08,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:30:08,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:30:08,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:30:08,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:30:08,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:30:08,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:30:08,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:30:08,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:30:08,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:30:08,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:30:08,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:30:08,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:30:08,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:30:08,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:30:08,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:30:08,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:30:08,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:30:08,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:30:08,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:30:08,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:30:08,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:30:08,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:30:08,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:30:08,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:30:08,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:30:08,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:30:08,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:30:08,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:30:08,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:30:08,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:30:08,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:30:08,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:30:08,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:30:08,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:30:08,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:30:08,462 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:30:08,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:30:08,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:30:08,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:30:08,466 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:30:08,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:30:08,466 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:30:08,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:30:08,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:30:08,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:30:08,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:30:08,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:30:08,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:30:08,468 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:30:08,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:30:08,469 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:30:08,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:30:08,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:30:08,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:30:08,470 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:30:08,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:30:08,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:30:08,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:30:08,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:30:08,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:30:08,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:30:08,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:30:08,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:30:08,471 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:30:08,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 2f0f9ff38f9b3a9f7f39491e79843407ac53fbed [2020-10-19 22:30:08,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:30:08,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:30:08,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:30:08,699 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:30:08,699 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:30:08,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label29.c [2020-10-19 22:30:08,774 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c84b2bbfe/81b6d45e7bd949df969ca14fe7f36f45/FLAG5142955f8 [2020-10-19 22:30:09,435 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:30:09,435 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label29.c [2020-10-19 22:30:09,449 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c84b2bbfe/81b6d45e7bd949df969ca14fe7f36f45/FLAG5142955f8 [2020-10-19 22:30:09,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c84b2bbfe/81b6d45e7bd949df969ca14fe7f36f45 [2020-10-19 22:30:09,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:30:09,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:30:09,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:30:09,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:30:09,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:30:09,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:30:09" (1/1) ... [2020-10-19 22:30:09,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a90c230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:09, skipping insertion in model container [2020-10-19 22:30:09,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:30:09" (1/1) ... [2020-10-19 22:30:09,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:30:09,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:30:10,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:30:10,194 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:30:10,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:30:10,349 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:30:10,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:10 WrapperNode [2020-10-19 22:30:10,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:30:10,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:30:10,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:30:10,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:30:10,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:10" (1/1) ... [2020-10-19 22:30:10,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:10" (1/1) ... [2020-10-19 22:30:10,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:30:10,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:30:10,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:30:10,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:30:10,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:10" (1/1) ... [2020-10-19 22:30:10,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:10" (1/1) ... [2020-10-19 22:30:10,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:10" (1/1) ... [2020-10-19 22:30:10,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:10" (1/1) ... [2020-10-19 22:30:10,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:10" (1/1) ... [2020-10-19 22:30:10,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:10" (1/1) ... [2020-10-19 22:30:10,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:10" (1/1) ... [2020-10-19 22:30:10,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:30:10,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:30:10,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:30:10,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:30:10,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:10" (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 [2020-10-19 22:30:10,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:30:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:30:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:30:10,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:30:11,920 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:30:11,920 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:30:11,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:30:11 BoogieIcfgContainer [2020-10-19 22:30:11,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:30:11,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:30:11,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:30:11,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:30:11,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:30:09" (1/3) ... [2020-10-19 22:30:11,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f189f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:30:11, skipping insertion in model container [2020-10-19 22:30:11,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:10" (2/3) ... [2020-10-19 22:30:11,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f189f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:30:11, skipping insertion in model container [2020-10-19 22:30:11,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:30:11" (3/3) ... [2020-10-19 22:30:11,932 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label29.c [2020-10-19 22:30:11,945 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:30:11,953 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:30:11,968 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:30:11,996 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:30:11,996 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:30:11,996 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:30:11,997 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:30:11,997 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:30:11,997 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:30:11,997 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:30:11,997 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:30:12,022 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-10-19 22:30:12,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-19 22:30:12,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:12,035 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] [2020-10-19 22:30:12,036 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:12,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:12,043 INFO L82 PathProgramCache]: Analyzing trace with hash 620620582, now seen corresponding path program 1 times [2020-10-19 22:30:12,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:12,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626020640] [2020-10-19 22:30:12,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:12,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:30:12,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626020640] [2020-10-19 22:30:12,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:12,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:30:12,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17151677] [2020-10-19 22:30:12,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:12,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:12,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:12,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:12,648 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-10-19 22:30:13,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:13,531 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-10-19 22:30:13,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:13,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2020-10-19 22:30:13,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:13,567 INFO L225 Difference]: With dead ends: 529 [2020-10-19 22:30:13,567 INFO L226 Difference]: Without dead ends: 266 [2020-10-19 22:30:13,577 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 [2020-10-19 22:30:13,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-19 22:30:13,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-19 22:30:13,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-19 22:30:13,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 386 transitions. [2020-10-19 22:30:13,682 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 386 transitions. Word has length 101 [2020-10-19 22:30:13,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:13,683 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 386 transitions. [2020-10-19 22:30:13,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:13,684 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 386 transitions. [2020-10-19 22:30:13,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-19 22:30:13,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:13,694 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] [2020-10-19 22:30:13,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:30:13,695 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:13,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:13,695 INFO L82 PathProgramCache]: Analyzing trace with hash -839721423, now seen corresponding path program 1 times [2020-10-19 22:30:13,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:13,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602069974] [2020-10-19 22:30:13,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:13,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:30:13,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602069974] [2020-10-19 22:30:13,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:13,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:30:13,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856053449] [2020-10-19 22:30:13,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:13,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:13,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:13,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:13,799 INFO L87 Difference]: Start difference. First operand 266 states and 386 transitions. Second operand 3 states. [2020-10-19 22:30:14,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:14,353 INFO L93 Difference]: Finished difference Result 792 states and 1153 transitions. [2020-10-19 22:30:14,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:14,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-10-19 22:30:14,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:14,359 INFO L225 Difference]: With dead ends: 792 [2020-10-19 22:30:14,361 INFO L226 Difference]: Without dead ends: 528 [2020-10-19 22:30:14,363 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 [2020-10-19 22:30:14,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-10-19 22:30:14,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-10-19 22:30:14,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-19 22:30:14,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 726 transitions. [2020-10-19 22:30:14,400 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 726 transitions. Word has length 107 [2020-10-19 22:30:14,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:14,401 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 726 transitions. [2020-10-19 22:30:14,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:14,401 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 726 transitions. [2020-10-19 22:30:14,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-19 22:30:14,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:14,404 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:14,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:30:14,405 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:14,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:14,406 INFO L82 PathProgramCache]: Analyzing trace with hash 356361780, now seen corresponding path program 1 times [2020-10-19 22:30:14,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:14,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253648864] [2020-10-19 22:30:14,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:14,574 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:30:14,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253648864] [2020-10-19 22:30:14,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:14,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:30:14,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549802622] [2020-10-19 22:30:14,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:14,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:14,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:14,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:14,577 INFO L87 Difference]: Start difference. First operand 528 states and 726 transitions. Second operand 3 states. [2020-10-19 22:30:15,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:15,185 INFO L93 Difference]: Finished difference Result 1578 states and 2173 transitions. [2020-10-19 22:30:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:15,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-10-19 22:30:15,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:15,191 INFO L225 Difference]: With dead ends: 1578 [2020-10-19 22:30:15,192 INFO L226 Difference]: Without dead ends: 1052 [2020-10-19 22:30:15,193 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 [2020-10-19 22:30:15,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-10-19 22:30:15,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2020-10-19 22:30:15,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-10-19 22:30:15,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1376 transitions. [2020-10-19 22:30:15,224 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1376 transitions. Word has length 122 [2020-10-19 22:30:15,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:15,224 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1376 transitions. [2020-10-19 22:30:15,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:15,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1376 transitions. [2020-10-19 22:30:15,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-19 22:30:15,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:15,230 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2020-10-19 22:30:15,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 22:30:15,230 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:15,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:15,231 INFO L82 PathProgramCache]: Analyzing trace with hash -799468791, now seen corresponding path program 1 times [2020-10-19 22:30:15,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:15,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455603380] [2020-10-19 22:30:15,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:15,336 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-19 22:30:15,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455603380] [2020-10-19 22:30:15,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:15,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:30:15,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362187070] [2020-10-19 22:30:15,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:15,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:15,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:15,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:15,340 INFO L87 Difference]: Start difference. First operand 1052 states and 1376 transitions. Second operand 3 states. [2020-10-19 22:30:15,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:15,959 INFO L93 Difference]: Finished difference Result 2495 states and 3288 transitions. [2020-10-19 22:30:15,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:15,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-10-19 22:30:15,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:15,968 INFO L225 Difference]: With dead ends: 2495 [2020-10-19 22:30:15,968 INFO L226 Difference]: Without dead ends: 1445 [2020-10-19 22:30:15,970 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 [2020-10-19 22:30:15,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2020-10-19 22:30:16,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2020-10-19 22:30:16,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2020-10-19 22:30:16,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1842 transitions. [2020-10-19 22:30:16,016 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1842 transitions. Word has length 129 [2020-10-19 22:30:16,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:16,018 INFO L481 AbstractCegarLoop]: Abstraction has 1445 states and 1842 transitions. [2020-10-19 22:30:16,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:16,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1842 transitions. [2020-10-19 22:30:16,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-19 22:30:16,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:16,026 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2020-10-19 22:30:16,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:30:16,026 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:16,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:16,026 INFO L82 PathProgramCache]: Analyzing trace with hash 12485887, now seen corresponding path program 1 times [2020-10-19 22:30:16,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:16,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219366906] [2020-10-19 22:30:16,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:16,193 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 22:30:16,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219366906] [2020-10-19 22:30:16,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:16,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:30:16,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842185833] [2020-10-19 22:30:16,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:16,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:16,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:16,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:16,195 INFO L87 Difference]: Start difference. First operand 1445 states and 1842 transitions. Second operand 3 states. [2020-10-19 22:30:16,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:16,720 INFO L93 Difference]: Finished difference Result 2888 states and 3682 transitions. [2020-10-19 22:30:16,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:16,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-10-19 22:30:16,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:16,730 INFO L225 Difference]: With dead ends: 2888 [2020-10-19 22:30:16,731 INFO L226 Difference]: Without dead ends: 1445 [2020-10-19 22:30:16,733 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 [2020-10-19 22:30:16,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2020-10-19 22:30:16,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2020-10-19 22:30:16,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2020-10-19 22:30:16,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1818 transitions. [2020-10-19 22:30:16,770 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1818 transitions. Word has length 133 [2020-10-19 22:30:16,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:16,771 INFO L481 AbstractCegarLoop]: Abstraction has 1445 states and 1818 transitions. [2020-10-19 22:30:16,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:16,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1818 transitions. [2020-10-19 22:30:16,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-19 22:30:16,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:16,776 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2020-10-19 22:30:16,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:30:16,776 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:16,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:16,777 INFO L82 PathProgramCache]: Analyzing trace with hash 2109706154, now seen corresponding path program 1 times [2020-10-19 22:30:16,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:16,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634667054] [2020-10-19 22:30:16,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:16,825 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-19 22:30:16,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634667054] [2020-10-19 22:30:16,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:16,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:16,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513101786] [2020-10-19 22:30:16,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:16,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:16,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:16,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:16,838 INFO L87 Difference]: Start difference. First operand 1445 states and 1818 transitions. Second operand 3 states. [2020-10-19 22:30:17,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:17,484 INFO L93 Difference]: Finished difference Result 3543 states and 4434 transitions. [2020-10-19 22:30:17,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:17,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2020-10-19 22:30:17,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:17,496 INFO L225 Difference]: With dead ends: 3543 [2020-10-19 22:30:17,497 INFO L226 Difference]: Without dead ends: 1707 [2020-10-19 22:30:17,500 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 [2020-10-19 22:30:17,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2020-10-19 22:30:17,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1314. [2020-10-19 22:30:17,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-10-19 22:30:17,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1463 transitions. [2020-10-19 22:30:17,544 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1463 transitions. Word has length 134 [2020-10-19 22:30:17,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:17,544 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1463 transitions. [2020-10-19 22:30:17,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:17,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1463 transitions. [2020-10-19 22:30:17,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-19 22:30:17,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:17,550 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:17,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:30:17,551 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:17,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:17,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1282529925, now seen corresponding path program 1 times [2020-10-19 22:30:17,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:17,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355303835] [2020-10-19 22:30:17,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 22:30:17,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355303835] [2020-10-19 22:30:17,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:17,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:17,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296341053] [2020-10-19 22:30:17,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:30:17,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:17,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:30:17,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:30:17,671 INFO L87 Difference]: Start difference. First operand 1314 states and 1463 transitions. Second operand 4 states. [2020-10-19 22:30:18,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:18,596 INFO L93 Difference]: Finished difference Result 3543 states and 3972 transitions. [2020-10-19 22:30:18,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:30:18,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2020-10-19 22:30:18,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:18,609 INFO L225 Difference]: With dead ends: 3543 [2020-10-19 22:30:18,609 INFO L226 Difference]: Without dead ends: 2231 [2020-10-19 22:30:18,612 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 [2020-10-19 22:30:18,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-10-19 22:30:18,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1576. [2020-10-19 22:30:18,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2020-10-19 22:30:18,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1749 transitions. [2020-10-19 22:30:18,656 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1749 transitions. Word has length 137 [2020-10-19 22:30:18,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:18,656 INFO L481 AbstractCegarLoop]: Abstraction has 1576 states and 1749 transitions. [2020-10-19 22:30:18,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:30:18,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1749 transitions. [2020-10-19 22:30:18,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-19 22:30:18,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:18,661 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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] [2020-10-19 22:30:18,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 22:30:18,661 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:18,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:18,662 INFO L82 PathProgramCache]: Analyzing trace with hash -2102335383, now seen corresponding path program 1 times [2020-10-19 22:30:18,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:18,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987502878] [2020-10-19 22:30:18,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:18,730 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-19 22:30:18,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987502878] [2020-10-19 22:30:18,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:18,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:18,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997260736] [2020-10-19 22:30:18,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:18,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:18,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:18,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:18,733 INFO L87 Difference]: Start difference. First operand 1576 states and 1749 transitions. Second operand 3 states. [2020-10-19 22:30:19,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:19,221 INFO L93 Difference]: Finished difference Result 4067 states and 4514 transitions. [2020-10-19 22:30:19,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:19,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-10-19 22:30:19,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:19,235 INFO L225 Difference]: With dead ends: 4067 [2020-10-19 22:30:19,235 INFO L226 Difference]: Without dead ends: 2493 [2020-10-19 22:30:19,238 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 [2020-10-19 22:30:19,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2020-10-19 22:30:19,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2100. [2020-10-19 22:30:19,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-10-19 22:30:19,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2333 transitions. [2020-10-19 22:30:19,285 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2333 transitions. Word has length 146 [2020-10-19 22:30:19,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:19,286 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2333 transitions. [2020-10-19 22:30:19,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:19,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2333 transitions. [2020-10-19 22:30:19,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-19 22:30:19,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:19,292 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 22:30:19,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:30:19,292 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:19,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:19,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1795966815, now seen corresponding path program 1 times [2020-10-19 22:30:19,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:19,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84720252] [2020-10-19 22:30:19,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:19,387 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-19 22:30:19,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84720252] [2020-10-19 22:30:19,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:19,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:30:19,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243830045] [2020-10-19 22:30:19,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:19,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:19,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:19,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:19,390 INFO L87 Difference]: Start difference. First operand 2100 states and 2333 transitions. Second operand 3 states. [2020-10-19 22:30:19,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:19,881 INFO L93 Difference]: Finished difference Result 4460 states and 4954 transitions. [2020-10-19 22:30:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:19,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2020-10-19 22:30:19,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:19,897 INFO L225 Difference]: With dead ends: 4460 [2020-10-19 22:30:19,898 INFO L226 Difference]: Without dead ends: 2362 [2020-10-19 22:30:19,901 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 [2020-10-19 22:30:19,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-10-19 22:30:19,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2362. [2020-10-19 22:30:19,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-10-19 22:30:19,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2613 transitions. [2020-10-19 22:30:19,965 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2613 transitions. Word has length 162 [2020-10-19 22:30:19,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:19,965 INFO L481 AbstractCegarLoop]: Abstraction has 2362 states and 2613 transitions. [2020-10-19 22:30:19,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:19,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2613 transitions. [2020-10-19 22:30:19,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-19 22:30:19,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:19,973 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 22:30:19,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 22:30:19,973 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:19,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:19,974 INFO L82 PathProgramCache]: Analyzing trace with hash -646031141, now seen corresponding path program 1 times [2020-10-19 22:30:19,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:19,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379237901] [2020-10-19 22:30:19,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:20,134 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-19 22:30:20,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379237901] [2020-10-19 22:30:20,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:20,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:20,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998472412] [2020-10-19 22:30:20,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:30:20,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:20,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:30:20,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:30:20,136 INFO L87 Difference]: Start difference. First operand 2362 states and 2613 transitions. Second operand 4 states. [2020-10-19 22:30:20,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:20,795 INFO L93 Difference]: Finished difference Result 5377 states and 5940 transitions. [2020-10-19 22:30:20,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:30:20,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-10-19 22:30:20,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:20,808 INFO L225 Difference]: With dead ends: 5377 [2020-10-19 22:30:20,808 INFO L226 Difference]: Without dead ends: 3017 [2020-10-19 22:30:20,811 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 [2020-10-19 22:30:20,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2020-10-19 22:30:20,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 2755. [2020-10-19 22:30:20,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2020-10-19 22:30:20,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3023 transitions. [2020-10-19 22:30:20,864 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3023 transitions. Word has length 166 [2020-10-19 22:30:20,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:20,864 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 3023 transitions. [2020-10-19 22:30:20,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:30:20,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3023 transitions. [2020-10-19 22:30:20,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-19 22:30:20,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:20,870 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:20,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 22:30:20,871 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:20,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:20,871 INFO L82 PathProgramCache]: Analyzing trace with hash -87724684, now seen corresponding path program 1 times [2020-10-19 22:30:20,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:20,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709917390] [2020-10-19 22:30:20,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:21,047 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-19 22:30:21,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709917390] [2020-10-19 22:30:21,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:21,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:21,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527447441] [2020-10-19 22:30:21,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:21,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:21,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:21,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:21,051 INFO L87 Difference]: Start difference. First operand 2755 states and 3023 transitions. Second operand 3 states. [2020-10-19 22:30:21,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:21,515 INFO L93 Difference]: Finished difference Result 6032 states and 6628 transitions. [2020-10-19 22:30:21,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:21,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-10-19 22:30:21,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:21,530 INFO L225 Difference]: With dead ends: 6032 [2020-10-19 22:30:21,530 INFO L226 Difference]: Without dead ends: 3148 [2020-10-19 22:30:21,534 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 [2020-10-19 22:30:21,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2020-10-19 22:30:21,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 1838. [2020-10-19 22:30:21,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-10-19 22:30:21,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2027 transitions. [2020-10-19 22:30:21,585 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2027 transitions. Word has length 183 [2020-10-19 22:30:21,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:21,585 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 2027 transitions. [2020-10-19 22:30:21,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:21,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2027 transitions. [2020-10-19 22:30:21,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-19 22:30:21,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:21,593 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 22:30:21,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 22:30:21,594 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:21,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:21,594 INFO L82 PathProgramCache]: Analyzing trace with hash 736506349, now seen corresponding path program 1 times [2020-10-19 22:30:21,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:21,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695498348] [2020-10-19 22:30:21,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:22,040 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 129 proven. 142 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-19 22:30:22,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695498348] [2020-10-19 22:30:22,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379302285] [2020-10-19 22:30:22,041 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 [2020-10-19 22:30:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:22,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:30:22,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:30:22,331 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-10-19 22:30:22,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:30:22,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 22:30:22,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263829701] [2020-10-19 22:30:22,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:22,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:22,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:22,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 22:30:22,334 INFO L87 Difference]: Start difference. First operand 1838 states and 2027 transitions. Second operand 3 states. [2020-10-19 22:30:22,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:22,806 INFO L93 Difference]: Finished difference Result 3803 states and 4203 transitions. [2020-10-19 22:30:22,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:22,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2020-10-19 22:30:22,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:22,808 INFO L225 Difference]: With dead ends: 3803 [2020-10-19 22:30:22,808 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:30:22,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 22:30:22,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:30:22,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:30:22,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:30:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:30:22,812 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 248 [2020-10-19 22:30:22,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:22,812 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:30:22,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:22,812 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:30:22,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:30:23,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-19 22:30:23,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:30:23,180 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,180 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,180 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,180 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,180 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,180 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,181 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-19 22:30:23,181 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-19 22:30:23,181 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-19 22:30:23,181 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-19 22:30:23,181 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-19 22:30:23,181 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-19 22:30:23,181 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-19 22:30:23,181 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-19 22:30:23,181 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-19 22:30:23,182 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-19 22:30:23,182 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 22:30:23,182 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-19 22:30:23,182 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-19 22:30:23,182 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,182 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,182 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,182 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,182 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,182 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,183 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-19 22:30:23,183 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-19 22:30:23,183 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-19 22:30:23,183 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-19 22:30:23,183 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-19 22:30:23,183 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-19 22:30:23,183 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-19 22:30:23,183 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-19 22:30:23,183 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-19 22:30:23,184 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-19 22:30:23,184 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,184 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,184 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,184 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,184 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,184 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,184 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-19 22:30:23,184 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-19 22:30:23,184 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-19 22:30:23,185 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-19 22:30:23,185 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-19 22:30:23,185 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-19 22:30:23,185 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-19 22:30:23,185 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-19 22:30:23,185 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-19 22:30:23,185 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-19 22:30:23,185 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-19 22:30:23,185 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-19 22:30:23,185 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-19 22:30:23,186 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-19 22:30:23,186 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-19 22:30:23,186 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,186 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,186 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,186 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,186 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,186 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-19 22:30:23,186 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-19 22:30:23,186 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-19 22:30:23,187 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-19 22:30:23,187 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-19 22:30:23,187 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-19 22:30:23,187 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-19 22:30:23,187 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-19 22:30:23,187 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-19 22:30:23,187 INFO L270 CegarLoopResult]: At program point L576(lines 32 577) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and .cse0 (<= ~a17~0 0)) (and .cse0 (not (= ~a7~0 1)) (= ~a17~0 1)) (<= ~a8~0 13))) [2020-10-19 22:30:23,188 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,188 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,188 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,188 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,188 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,188 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-19 22:30:23,188 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-19 22:30:23,188 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-19 22:30:23,188 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-19 22:30:23,188 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-19 22:30:23,189 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-19 22:30:23,189 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-19 22:30:23,189 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-19 22:30:23,189 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-19 22:30:23,189 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-19 22:30:23,189 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-19 22:30:23,189 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-19 22:30:23,189 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-19 22:30:23,189 INFO L277 CegarLoopResult]: At program point L579(lines 579 596) the Hoare annotation is: true [2020-10-19 22:30:23,190 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,190 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,190 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,190 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,191 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,191 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-19 22:30:23,191 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-19 22:30:23,191 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-19 22:30:23,191 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-19 22:30:23,191 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-19 22:30:23,192 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-19 22:30:23,192 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-19 22:30:23,192 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-19 22:30:23,192 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:30:23,192 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-19 22:30:23,192 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,193 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,193 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,193 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,193 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-19 22:30:23,193 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,193 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-19 22:30:23,194 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-19 22:30:23,194 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-19 22:30:23,194 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-19 22:30:23,194 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-19 22:30:23,194 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-19 22:30:23,194 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-19 22:30:23,195 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-19 22:30:23,195 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-19 22:30:23,195 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-19 22:30:23,195 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-19 22:30:23,195 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-19 22:30:23,196 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-19 22:30:23,196 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,196 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and .cse0 (<= ~a17~0 0)) (and .cse0 (not (= ~a7~0 1)) (= ~a17~0 1)) (<= ~a8~0 13))) [2020-10-19 22:30:23,196 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,196 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,197 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,197 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,197 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-19 22:30:23,197 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-19 22:30:23,197 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-19 22:30:23,197 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-19 22:30:23,197 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-19 22:30:23,198 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-19 22:30:23,198 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-19 22:30:23,198 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:30:23,198 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-19 22:30:23,199 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,199 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,199 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,199 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,200 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,200 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-19 22:30:23,200 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-19 22:30:23,200 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-19 22:30:23,201 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-19 22:30:23,201 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-19 22:30:23,201 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-19 22:30:23,201 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-19 22:30:23,201 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-19 22:30:23,202 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-19 22:30:23,202 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-19 22:30:23,202 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:30:23,202 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-19 22:30:23,202 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-19 22:30:23,203 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,203 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,203 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,203 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,203 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-19 22:30:23,204 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,204 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,204 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-19 22:30:23,204 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-19 22:30:23,205 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-19 22:30:23,205 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-19 22:30:23,205 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-19 22:30:23,205 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-19 22:30:23,206 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-19 22:30:23,206 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-19 22:30:23,206 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-19 22:30:23,206 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-19 22:30:23,206 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-19 22:30:23,206 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-19 22:30:23,207 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:30:23,207 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 22:30:23,207 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,207 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,208 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,208 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,208 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,208 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-19 22:30:23,209 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:23,209 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-19 22:30:23,209 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-19 22:30:23,209 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-19 22:30:23,209 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-19 22:30:23,210 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-19 22:30:23,210 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-19 22:30:23,210 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-19 22:30:23,210 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-19 22:30:23,210 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-19 22:30:23,211 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-19 22:30:23,211 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-19 22:30:23,211 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-19 22:30:23,211 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-19 22:30:23,212 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-19 22:30:23,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:30:23 BoogieIcfgContainer [2020-10-19 22:30:23,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:30:23,235 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:30:23,235 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:30:23,236 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:30:23,236 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:30:11" (3/4) ... [2020-10-19 22:30:23,240 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:30:23,264 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 22:30:23,266 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:30:23,267 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:30:23,269 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:30:23,492 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:30:23,493 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:30:23,495 INFO L168 Benchmark]: Toolchain (without parser) took 13847.42 ms. Allocated memory was 35.7 MB in the beginning and 163.1 MB in the end (delta: 127.4 MB). Free memory was 14.0 MB in the beginning and 60.6 MB in the end (delta: -46.6 MB). Peak memory consumption was 80.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:23,497 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 34.1 MB. Free memory was 9.8 MB in the beginning and 9.7 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. [2020-10-19 22:30:23,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.46 ms. Allocated memory was 35.7 MB in the beginning and 46.7 MB in the end (delta: 11.0 MB). Free memory was 13.2 MB in the beginning and 20.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:23,498 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.98 ms. Allocated memory is still 46.7 MB. Free memory was 20.3 MB in the beginning and 14.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:23,498 INFO L168 Benchmark]: Boogie Preprocessor took 114.28 ms. Allocated memory is still 46.7 MB. Free memory was 14.5 MB in the beginning and 22.4 MB in the end (delta: -7.9 MB). Peak memory consumption was 5.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:23,499 INFO L168 Benchmark]: RCFGBuilder took 1364.14 ms. Allocated memory was 46.7 MB in the beginning and 58.2 MB in the end (delta: 11.5 MB). Free memory was 22.4 MB in the beginning and 18.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:23,499 INFO L168 Benchmark]: TraceAbstraction took 11310.81 ms. Allocated memory was 58.2 MB in the beginning and 163.1 MB in the end (delta: 104.9 MB). Free memory was 17.6 MB in the beginning and 79.7 MB in the end (delta: -62.1 MB). Peak memory consumption was 42.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:23,500 INFO L168 Benchmark]: Witness Printer took 257.56 ms. Allocated memory is still 163.1 MB. Free memory was 79.7 MB in the beginning and 60.6 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:23,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 34.1 MB. Free memory was 9.8 MB in the beginning and 9.7 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 696.46 ms. Allocated memory was 35.7 MB in the beginning and 46.7 MB in the end (delta: 11.0 MB). Free memory was 13.2 MB in the beginning and 20.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 92.98 ms. Allocated memory is still 46.7 MB. Free memory was 20.3 MB in the beginning and 14.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 114.28 ms. Allocated memory is still 46.7 MB. Free memory was 14.5 MB in the beginning and 22.4 MB in the end (delta: -7.9 MB). Peak memory consumption was 5.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1364.14 ms. Allocated memory was 46.7 MB in the beginning and 58.2 MB in the end (delta: 11.5 MB). Free memory was 22.4 MB in the beginning and 18.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 11310.81 ms. Allocated memory was 58.2 MB in the beginning and 163.1 MB in the end (delta: 104.9 MB). Free memory was 17.6 MB in the beginning and 79.7 MB in the end (delta: -62.1 MB). Peak memory consumption was 42.8 MB. Max. memory is 14.3 GB. * Witness Printer took 257.56 ms. Allocated memory is still 163.1 MB. Free memory was 79.7 MB in the beginning and 60.6 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 14.3 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: ((a21 == 1 && a17 <= 0) || ((a21 == 1 && !(a7 == 1)) && a17 == 1)) || a8 <= 13 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((a21 == 1 && a17 <= 0) || ((a21 == 1 && !(a7 == 1)) && a17 == 1)) || a8 <= 13 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.0s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 668 SDtfs, 1908 SDslu, 70 SDs, 0 SdLazy, 4169 SolverSat, 647 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 279 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2755occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 3013 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 45 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3000 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 100 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 2016 NumberOfCodeBlocks, 2016 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2003 ConstructedInterpolants, 0 QuantifiedInterpolants, 1132709 SizeOfPredicates, 1 NumberOfNonLiveVariables, 484 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 1086/1228 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...