./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label06.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer --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 f82c1bbe19a69e4565d8b70ee958e74a23cd1b08 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:57:35,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:35,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:35,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:35,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:35,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:35,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:35,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:35,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:35,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:35,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:35,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:35,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:35,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:35,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:35,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:35,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:35,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:35,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:35,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:35,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:35,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:35,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:35,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:35,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:35,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:35,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:35,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:35,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:35,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:35,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:35,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:35,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:35,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:35,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:35,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:35,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:35,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:35,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:35,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:35,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:35,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:57:35,290 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:35,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:35,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:35,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:35,293 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:35,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:35,293 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:57:35,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:35,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:57:35,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:35,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:57:35,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:57:35,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:57:35,296 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:57:35,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:57:35,296 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:35,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:57:35,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:35,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:35,297 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:57:35,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:57:35,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:57:35,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:35,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:57:35,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:57:35,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:57:35,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:57:35,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:57:35,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:35,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f82c1bbe19a69e4565d8b70ee958e74a23cd1b08 [2020-11-28 02:57:35,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:35,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:35,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:35,601 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:35,602 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:35,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label06.c [2020-11-28 02:57:35,694 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/data/5308ab1fd/338b745f328b401dbe1bfe22f76783d7/FLAGe64f01dc8 [2020-11-28 02:57:36,396 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:36,398 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/sv-benchmarks/c/eca-rers2012/Problem14_label06.c [2020-11-28 02:57:36,415 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/data/5308ab1fd/338b745f328b401dbe1bfe22f76783d7/FLAGe64f01dc8 [2020-11-28 02:57:36,620 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/data/5308ab1fd/338b745f328b401dbe1bfe22f76783d7 [2020-11-28 02:57:36,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:36,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:57:36,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:36,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:36,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:36,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:36" (1/1) ... [2020-11-28 02:57:36,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207ef1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36, skipping insertion in model container [2020-11-28 02:57:36,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:36" (1/1) ... [2020-11-28 02:57:36,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:36,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:37,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:37,291 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:37,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:37,452 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:37,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:37 WrapperNode [2020-11-28 02:57:37,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:37,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:37,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:57:37,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:57:37,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:37" (1/1) ... [2020-11-28 02:57:37,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:37" (1/1) ... [2020-11-28 02:57:37,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:37,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:37,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:37,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:37,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:37" (1/1) ... [2020-11-28 02:57:37,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:37" (1/1) ... [2020-11-28 02:57:37,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:37" (1/1) ... [2020-11-28 02:57:37,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:37" (1/1) ... [2020-11-28 02:57:37,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:37" (1/1) ... [2020-11-28 02:57:37,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:37" (1/1) ... [2020-11-28 02:57:37,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:37" (1/1) ... [2020-11-28 02:57:37,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:37,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:37,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:37,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:37,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/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 [2020-11-28 02:57:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:57:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:57:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:37,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:39,484 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:39,484 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 02:57:39,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:39 BoogieIcfgContainer [2020-11-28 02:57:39,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:39,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:57:39,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:57:39,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:57:39,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:57:36" (1/3) ... [2020-11-28 02:57:39,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34beaf14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:57:39, skipping insertion in model container [2020-11-28 02:57:39,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:37" (2/3) ... [2020-11-28 02:57:39,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34beaf14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:57:39, skipping insertion in model container [2020-11-28 02:57:39,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:39" (3/3) ... [2020-11-28 02:57:39,497 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label06.c [2020-11-28 02:57:39,509 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:57:39,513 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 02:57:39,525 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 02:57:39,557 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:57:39,558 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:57:39,558 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:57:39,558 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:39,558 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:39,558 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:57:39,558 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:39,559 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:57:39,578 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-11-28 02:57:39,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-28 02:57:39,591 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:39,592 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] [2020-11-28 02:57:39,593 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:39,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:39,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1818267785, now seen corresponding path program 1 times [2020-11-28 02:57:39,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:39,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834340142] [2020-11-28 02:57:39,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:40,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:40,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834340142] [2020-11-28 02:57:40,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:40,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:40,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291175983] [2020-11-28 02:57:40,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:57:40,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:40,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:57:40,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:40,169 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 4 states. [2020-11-28 02:57:42,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:42,624 INFO L93 Difference]: Finished difference Result 853 states and 1561 transitions. [2020-11-28 02:57:42,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:57:42,625 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2020-11-28 02:57:42,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:42,642 INFO L225 Difference]: With dead ends: 853 [2020-11-28 02:57:42,642 INFO L226 Difference]: Without dead ends: 538 [2020-11-28 02:57:42,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:42,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-11-28 02:57:42,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2020-11-28 02:57:42,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-11-28 02:57:42,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2020-11-28 02:57:42,716 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 61 [2020-11-28 02:57:42,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:42,717 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2020-11-28 02:57:42,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:57:42,717 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2020-11-28 02:57:42,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-11-28 02:57:42,724 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:42,724 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:42,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:57:42,725 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:42,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:42,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1918222167, now seen corresponding path program 1 times [2020-11-28 02:57:42,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:42,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100791763] [2020-11-28 02:57:42,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:42,875 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:42,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100791763] [2020-11-28 02:57:42,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:42,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:42,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674194531] [2020-11-28 02:57:42,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:42,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:42,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:42,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:42,881 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand 3 states. [2020-11-28 02:57:43,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:43,902 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2020-11-28 02:57:43,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:43,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-11-28 02:57:43,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:43,906 INFO L225 Difference]: With dead ends: 1074 [2020-11-28 02:57:43,906 INFO L226 Difference]: Without dead ends: 716 [2020-11-28 02:57:43,908 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 [2020-11-28 02:57:43,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-11-28 02:57:43,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-11-28 02:57:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-11-28 02:57:43,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2020-11-28 02:57:43,968 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 127 [2020-11-28 02:57:43,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:43,970 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2020-11-28 02:57:43,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:43,971 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2020-11-28 02:57:43,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-11-28 02:57:43,977 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:43,977 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:43,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:57:43,978 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:43,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:43,979 INFO L82 PathProgramCache]: Analyzing trace with hash 2042840762, now seen corresponding path program 1 times [2020-11-28 02:57:43,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:43,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254213207] [2020-11-28 02:57:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:44,232 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:44,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254213207] [2020-11-28 02:57:44,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:44,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:44,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273013529] [2020-11-28 02:57:44,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:57:44,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:44,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:57:44,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:44,236 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand 4 states. [2020-11-28 02:57:45,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:45,409 INFO L93 Difference]: Finished difference Result 1637 states and 2268 transitions. [2020-11-28 02:57:45,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:57:45,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2020-11-28 02:57:45,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:45,418 INFO L225 Difference]: With dead ends: 1637 [2020-11-28 02:57:45,418 INFO L226 Difference]: Without dead ends: 1072 [2020-11-28 02:57:45,419 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 [2020-11-28 02:57:45,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-11-28 02:57:45,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2020-11-28 02:57:45,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-11-28 02:57:45,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2020-11-28 02:57:45,442 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 141 [2020-11-28 02:57:45,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:45,443 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2020-11-28 02:57:45,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:57:45,443 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2020-11-28 02:57:45,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-11-28 02:57:45,450 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:45,450 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:45,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:57:45,451 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:45,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:45,452 INFO L82 PathProgramCache]: Analyzing trace with hash -60960639, now seen corresponding path program 1 times [2020-11-28 02:57:45,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:45,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973735922] [2020-11-28 02:57:45,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:45,812 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-11-28 02:57:45,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973735922] [2020-11-28 02:57:45,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:45,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:45,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138429377] [2020-11-28 02:57:45,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:45,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:45,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:45,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:45,817 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand 3 states. [2020-11-28 02:57:46,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:46,689 INFO L93 Difference]: Finished difference Result 2142 states and 2597 transitions. [2020-11-28 02:57:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:46,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 341 [2020-11-28 02:57:46,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:46,702 INFO L225 Difference]: With dead ends: 2142 [2020-11-28 02:57:46,702 INFO L226 Difference]: Without dead ends: 1428 [2020-11-28 02:57:46,704 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 [2020-11-28 02:57:46,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-11-28 02:57:46,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1250. [2020-11-28 02:57:46,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-11-28 02:57:46,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1442 transitions. [2020-11-28 02:57:46,735 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1442 transitions. Word has length 341 [2020-11-28 02:57:46,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:46,738 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1442 transitions. [2020-11-28 02:57:46,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:46,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1442 transitions. [2020-11-28 02:57:46,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-11-28 02:57:46,745 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:46,745 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:46,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:57:46,745 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:46,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:46,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1374353769, now seen corresponding path program 1 times [2020-11-28 02:57:46,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:46,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893851744] [2020-11-28 02:57:46,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:47,245 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-11-28 02:57:47,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893851744] [2020-11-28 02:57:47,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:47,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:47,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899834842] [2020-11-28 02:57:47,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:57:47,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:47,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:57:47,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:47,248 INFO L87 Difference]: Start difference. First operand 1250 states and 1442 transitions. Second operand 4 states. [2020-11-28 02:57:48,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:48,421 INFO L93 Difference]: Finished difference Result 2527 states and 2948 transitions. [2020-11-28 02:57:48,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:57:48,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 352 [2020-11-28 02:57:48,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:48,430 INFO L225 Difference]: With dead ends: 2527 [2020-11-28 02:57:48,430 INFO L226 Difference]: Without dead ends: 1428 [2020-11-28 02:57:48,432 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 [2020-11-28 02:57:48,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-11-28 02:57:48,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1250. [2020-11-28 02:57:48,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-11-28 02:57:48,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1381 transitions. [2020-11-28 02:57:48,465 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1381 transitions. Word has length 352 [2020-11-28 02:57:48,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:48,466 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1381 transitions. [2020-11-28 02:57:48,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:57:48,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1381 transitions. [2020-11-28 02:57:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-11-28 02:57:48,474 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:48,474 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:48,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:57:48,475 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:48,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:48,475 INFO L82 PathProgramCache]: Analyzing trace with hash -959486651, now seen corresponding path program 1 times [2020-11-28 02:57:48,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:48,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937779258] [2020-11-28 02:57:48,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:49,160 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 336 proven. 23 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-11-28 02:57:49,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937779258] [2020-11-28 02:57:49,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54862169] [2020-11-28 02:57:49,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/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 [2020-11-28 02:57:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:49,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:57:49,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:49,752 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-11-28 02:57:49,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:57:49,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 02:57:49,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444940589] [2020-11-28 02:57:49,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:49,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:49,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:49,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:49,756 INFO L87 Difference]: Start difference. First operand 1250 states and 1381 transitions. Second operand 3 states. [2020-11-28 02:57:50,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:50,805 INFO L93 Difference]: Finished difference Result 3032 states and 3402 transitions. [2020-11-28 02:57:50,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:50,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 365 [2020-11-28 02:57:50,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:50,819 INFO L225 Difference]: With dead ends: 3032 [2020-11-28 02:57:50,820 INFO L226 Difference]: Without dead ends: 1962 [2020-11-28 02:57:50,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:50,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-11-28 02:57:50,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2020-11-28 02:57:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-11-28 02:57:50,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1955 transitions. [2020-11-28 02:57:50,868 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1955 transitions. Word has length 365 [2020-11-28 02:57:50,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:50,869 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 1955 transitions. [2020-11-28 02:57:50,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:50,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1955 transitions. [2020-11-28 02:57:50,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2020-11-28 02:57:50,882 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:50,883 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 02:57:51,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-28 02:57:51,104 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:51,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:51,105 INFO L82 PathProgramCache]: Analyzing trace with hash -640012849, now seen corresponding path program 1 times [2020-11-28 02:57:51,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:51,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581373600] [2020-11-28 02:57:51,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:51,791 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 601 proven. 23 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2020-11-28 02:57:51,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581373600] [2020-11-28 02:57:51,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93680694] [2020-11-28 02:57:51,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:57:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:51,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:57:51,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2020-11-28 02:57:52,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:57:52,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 02:57:52,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315974586] [2020-11-28 02:57:52,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:52,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:52,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:52,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:52,229 INFO L87 Difference]: Start difference. First operand 1784 states and 1955 transitions. Second operand 3 states. [2020-11-28 02:57:53,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:53,118 INFO L93 Difference]: Finished difference Result 4278 states and 4742 transitions. [2020-11-28 02:57:53,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:53,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 499 [2020-11-28 02:57:53,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:53,134 INFO L225 Difference]: With dead ends: 4278 [2020-11-28 02:57:53,134 INFO L226 Difference]: Without dead ends: 2674 [2020-11-28 02:57:53,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:53,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-11-28 02:57:53,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2020-11-28 02:57:53,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-11-28 02:57:53,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2737 transitions. [2020-11-28 02:57:53,203 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2737 transitions. Word has length 499 [2020-11-28 02:57:53,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:53,204 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2737 transitions. [2020-11-28 02:57:53,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:53,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2737 transitions. [2020-11-28 02:57:53,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2020-11-28 02:57:53,212 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:53,212 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-11-28 02:57:53,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:57:53,436 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:53,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:53,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1004089658, now seen corresponding path program 1 times [2020-11-28 02:57:53,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:53,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989885668] [2020-11-28 02:57:53,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:54,136 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 642 proven. 23 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2020-11-28 02:57:54,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989885668] [2020-11-28 02:57:54,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302475638] [2020-11-28 02:57:54,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:57:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:54,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:57:54,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2020-11-28 02:57:54,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:57:54,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 02:57:54,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343446466] [2020-11-28 02:57:54,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:54,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:54,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:54,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:54,543 INFO L87 Difference]: Start difference. First operand 2496 states and 2737 transitions. Second operand 3 states. [2020-11-28 02:57:55,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:55,312 INFO L93 Difference]: Finished difference Result 5700 states and 6328 transitions. [2020-11-28 02:57:55,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:55,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 529 [2020-11-28 02:57:55,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:55,315 INFO L225 Difference]: With dead ends: 5700 [2020-11-28 02:57:55,315 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 02:57:55,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:55,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 02:57:55,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 02:57:55,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 02:57:55,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 02:57:55,321 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 529 [2020-11-28 02:57:55,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:55,321 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:55,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:55,321 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:57:55,321 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 02:57:55,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:57:55,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 02:57:55,688 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2020-11-28 02:57:55,791 INFO L274 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-11-28 02:57:55,791 INFO L274 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-11-28 02:57:55,791 INFO L274 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-11-28 02:57:55,791 INFO L274 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-11-28 02:57:55,791 INFO L274 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-11-28 02:57:55,791 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,791 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,791 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,791 INFO L274 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-11-28 02:57:55,791 INFO L274 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-11-28 02:57:55,791 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-28 02:57:55,792 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-28 02:57:55,792 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-28 02:57:55,792 INFO L274 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-11-28 02:57:55,792 INFO L274 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-11-28 02:57:55,792 INFO L274 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-11-28 02:57:55,792 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,792 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,792 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,792 INFO L274 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-11-28 02:57:55,792 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-28 02:57:55,792 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-28 02:57:55,793 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-28 02:57:55,793 INFO L274 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-11-28 02:57:55,793 INFO L274 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-11-28 02:57:55,793 INFO L274 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-11-28 02:57:55,793 INFO L274 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-11-28 02:57:55,793 INFO L274 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-11-28 02:57:55,793 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,793 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,793 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,793 INFO L274 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-11-28 02:57:55,793 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-28 02:57:55,793 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-28 02:57:55,794 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-28 02:57:55,794 INFO L274 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-11-28 02:57:55,794 INFO L274 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-11-28 02:57:55,794 INFO L274 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-11-28 02:57:55,794 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,794 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,794 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,794 INFO L274 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-11-28 02:57:55,794 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-28 02:57:55,794 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-28 02:57:55,794 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-28 02:57:55,794 INFO L274 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-11-28 02:57:55,800 INFO L274 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-11-28 02:57:55,801 INFO L274 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-11-28 02:57:55,801 INFO L274 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-11-28 02:57:55,801 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,801 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,801 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,801 INFO L274 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-11-28 02:57:55,803 INFO L274 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-11-28 02:57:55,803 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-28 02:57:55,803 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-28 02:57:55,803 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-28 02:57:55,804 INFO L274 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-11-28 02:57:55,804 INFO L274 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-11-28 02:57:55,804 INFO L274 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-11-28 02:57:55,804 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,804 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,804 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,804 INFO L274 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-11-28 02:57:55,805 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-28 02:57:55,805 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-28 02:57:55,805 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-28 02:57:55,805 INFO L274 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-11-28 02:57:55,805 INFO L274 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-11-28 02:57:55,805 INFO L274 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-11-28 02:57:55,805 INFO L274 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-11-28 02:57:55,805 INFO L274 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-11-28 02:57:55,806 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,806 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,806 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,807 INFO L274 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-11-28 02:57:55,807 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-28 02:57:55,807 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-28 02:57:55,807 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-28 02:57:55,807 INFO L274 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-11-28 02:57:55,807 INFO L274 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-11-28 02:57:55,808 INFO L274 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-11-28 02:57:55,808 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 02:57:55,808 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,808 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,808 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,808 INFO L274 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-11-28 02:57:55,808 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-28 02:57:55,808 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-28 02:57:55,809 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-28 02:57:55,809 INFO L274 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-11-28 02:57:55,809 INFO L274 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-11-28 02:57:55,809 INFO L274 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-11-28 02:57:55,809 INFO L274 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-11-28 02:57:55,809 INFO L274 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-11-28 02:57:55,810 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,810 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,810 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,810 INFO L274 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-11-28 02:57:55,811 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-28 02:57:55,811 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-28 02:57:55,811 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-28 02:57:55,811 INFO L274 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-11-28 02:57:55,811 INFO L274 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-11-28 02:57:55,811 INFO L274 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-11-28 02:57:55,812 INFO L274 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-11-28 02:57:55,812 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,813 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,815 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,815 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-28 02:57:55,815 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-28 02:57:55,815 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-28 02:57:55,815 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 02:57:55,815 INFO L274 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-11-28 02:57:55,816 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 02:57:55,816 INFO L274 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-11-28 02:57:55,816 INFO L274 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-11-28 02:57:55,816 INFO L274 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-11-28 02:57:55,816 INFO L274 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-11-28 02:57:55,816 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,818 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,818 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,819 INFO L274 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-11-28 02:57:55,819 INFO L274 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-11-28 02:57:55,819 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-28 02:57:55,819 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-28 02:57:55,819 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-28 02:57:55,819 INFO L274 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-11-28 02:57:55,819 INFO L274 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-11-28 02:57:55,820 INFO L274 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-11-28 02:57:55,820 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,820 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,820 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,820 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-28 02:57:55,820 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-28 02:57:55,820 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-28 02:57:55,820 INFO L274 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-11-28 02:57:55,821 INFO L274 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-11-28 02:57:55,821 INFO L274 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-11-28 02:57:55,821 INFO L274 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-11-28 02:57:55,821 INFO L274 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-11-28 02:57:55,821 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,821 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,821 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,821 INFO L274 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-11-28 02:57:55,822 INFO L274 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-11-28 02:57:55,822 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-28 02:57:55,822 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-28 02:57:55,822 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-28 02:57:55,823 INFO L274 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-11-28 02:57:55,823 INFO L274 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-11-28 02:57:55,823 INFO L274 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-11-28 02:57:55,823 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,823 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,823 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,823 INFO L274 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-11-28 02:57:55,824 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-28 02:57:55,824 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-28 02:57:55,824 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-28 02:57:55,824 INFO L274 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-11-28 02:57:55,824 INFO L274 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-11-28 02:57:55,824 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 02:57:55,824 INFO L274 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-11-28 02:57:55,824 INFO L274 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-11-28 02:57:55,825 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,825 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,826 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,826 INFO L274 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-11-28 02:57:55,826 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-28 02:57:55,826 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-28 02:57:55,827 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-28 02:57:55,827 INFO L274 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-11-28 02:57:55,827 INFO L274 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-11-28 02:57:55,827 INFO L274 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-11-28 02:57:55,827 INFO L274 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-11-28 02:57:55,827 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,827 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,828 INFO L274 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-11-28 02:57:55,828 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-28 02:57:55,828 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-28 02:57:55,828 INFO L274 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-11-28 02:57:55,828 INFO L274 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-11-28 02:57:55,828 INFO L274 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-11-28 02:57:55,828 INFO L274 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-11-28 02:57:55,828 INFO L274 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-11-28 02:57:55,829 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,829 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,829 INFO L274 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-11-28 02:57:55,829 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 02:57:55,829 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-28 02:57:55,829 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-28 02:57:55,829 INFO L274 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-11-28 02:57:55,829 INFO L274 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-11-28 02:57:55,830 INFO L274 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-11-28 02:57:55,830 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,830 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,830 INFO L270 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (<= ~a15~0 8)) (.cse1 (= ~a24~0 1))) (or (and .cse0 (<= ~a21~0 6)) (and .cse0 (<= 10 ~a21~0)) (and (<= (+ ~a12~0 49) 0) .cse1) (and (< 11 ~a12~0) .cse0) (and (<= ~a21~0 7) .cse1) (and (not (= 5 ~a15~0)) .cse1))) [2020-11-28 02:57:55,830 INFO L274 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-11-28 02:57:55,831 INFO L274 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-11-28 02:57:55,831 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-28 02:57:55,831 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-28 02:57:55,831 INFO L274 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-11-28 02:57:55,831 INFO L274 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-11-28 02:57:55,831 INFO L274 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-11-28 02:57:55,831 INFO L274 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-11-28 02:57:55,831 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,832 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,832 INFO L277 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-11-28 02:57:55,832 INFO L274 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-11-28 02:57:55,832 INFO L274 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-11-28 02:57:55,832 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-28 02:57:55,832 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-28 02:57:55,832 INFO L274 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-11-28 02:57:55,832 INFO L274 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-11-28 02:57:55,833 INFO L274 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-11-28 02:57:55,833 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,833 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,833 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 02:57:55,833 INFO L274 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-11-28 02:57:55,833 INFO L274 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-11-28 02:57:55,833 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-28 02:57:55,833 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-28 02:57:55,834 INFO L274 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-11-28 02:57:55,834 INFO L274 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-11-28 02:57:55,834 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,834 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,834 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-28 02:57:55,834 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,834 INFO L274 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-11-28 02:57:55,836 INFO L270 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (<= ~a15~0 8)) (.cse1 (= ~a24~0 1))) (or (and .cse0 (<= ~a21~0 6)) (and .cse0 (<= 10 ~a21~0)) (and (<= (+ ~a12~0 49) 0) .cse1) (and (< 11 ~a12~0) .cse0) (and (<= ~a21~0 7) .cse1) (and (not (= 5 ~a15~0)) .cse1))) [2020-11-28 02:57:55,836 INFO L274 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-11-28 02:57:55,837 INFO L274 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-11-28 02:57:55,837 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-28 02:57:55,837 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-28 02:57:55,837 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-28 02:57:55,837 INFO L274 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-11-28 02:57:55,837 INFO L274 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-11-28 02:57:55,837 INFO L274 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-11-28 02:57:55,837 INFO L274 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-11-28 02:57:55,837 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,838 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,838 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-11-28 02:57:55,838 INFO L274 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-11-28 02:57:55,838 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-28 02:57:55,838 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-28 02:57:55,839 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-28 02:57:55,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:57:55 BoogieIcfgContainer [2020-11-28 02:57:55,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:57:55,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:57:55,862 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:57:55,862 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:57:55,863 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:39" (3/4) ... [2020-11-28 02:57:55,866 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 02:57:55,897 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 02:57:55,899 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 02:57:55,900 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:57:55,902 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:57:56,089 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2d431aea-b006-44ef-b48f-fe4f49d251e3/bin/uautomizer/witness.graphml [2020-11-28 02:57:56,089 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:57:56,090 INFO L168 Benchmark]: Toolchain (without parser) took 19464.71 ms. Allocated memory was 107.0 MB in the beginning and 515.9 MB in the end (delta: 408.9 MB). Free memory was 75.9 MB in the beginning and 269.2 MB in the end (delta: -193.4 MB). Peak memory consumption was 216.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,091 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 79.7 MB. Free memory was 37.1 MB in the beginning and 37.1 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:56,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 823.92 ms. Allocated memory is still 107.0 MB. Free memory was 75.9 MB in the beginning and 63.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,092 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.45 ms. Allocated memory is still 107.0 MB. Free memory was 63.9 MB in the beginning and 54.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,093 INFO L168 Benchmark]: Boogie Preprocessor took 107.30 ms. Allocated memory is still 107.0 MB. Free memory was 54.0 MB in the beginning and 48.2 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,093 INFO L168 Benchmark]: RCFGBuilder took 1835.34 ms. Allocated memory was 107.0 MB in the beginning and 148.9 MB in the end (delta: 41.9 MB). Free memory was 47.6 MB in the beginning and 87.6 MB in the end (delta: -40.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,093 INFO L168 Benchmark]: TraceAbstraction took 16371.98 ms. Allocated memory was 148.9 MB in the beginning and 515.9 MB in the end (delta: 367.0 MB). Free memory was 87.6 MB in the beginning and 289.2 MB in the end (delta: -201.6 MB). Peak memory consumption was 164.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,094 INFO L168 Benchmark]: Witness Printer took 227.36 ms. Allocated memory is still 515.9 MB. Free memory was 289.2 MB in the beginning and 269.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 79.7 MB. Free memory was 37.1 MB in the beginning and 37.1 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 823.92 ms. Allocated memory is still 107.0 MB. Free memory was 75.9 MB in the beginning and 63.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.45 ms. Allocated memory is still 107.0 MB. Free memory was 63.9 MB in the beginning and 54.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 107.30 ms. Allocated memory is still 107.0 MB. Free memory was 54.0 MB in the beginning and 48.2 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1835.34 ms. Allocated memory was 107.0 MB in the beginning and 148.9 MB in the end (delta: 41.9 MB). Free memory was 47.6 MB in the beginning and 87.6 MB in the end (delta: -40.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16371.98 ms. Allocated memory was 148.9 MB in the beginning and 515.9 MB in the end (delta: 367.0 MB). Free memory was 87.6 MB in the beginning and 289.2 MB in the end (delta: -201.6 MB). Peak memory consumption was 164.3 MB. Max. memory is 16.1 GB. * Witness Printer took 227.36 ms. Allocated memory is still 515.9 MB. Free memory was 289.2 MB in the beginning and 269.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((a15 <= 8 && a21 <= 6) || (a15 <= 8 && 10 <= a21)) || (a12 + 49 <= 0 && a24 == 1)) || (11 < a12 && a15 <= 8)) || (a21 <= 7 && a24 == 1)) || (!(5 == a15) && a24 == 1) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((a15 <= 8 && a21 <= 6) || (a15 <= 8 && 10 <= a21)) || (a12 + 49 <= 0 && a24 == 1)) || (11 < a12 && a15 <= 8)) || (a21 <= 7 && a24 == 1)) || (!(5 == a15) && a24 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.9s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1084 SDtfs, 1343 SDslu, 57 SDs, 0 SdLazy, 4851 SolverSat, 882 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1417 GetRequests, 1396 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2496occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 890 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 48 NumberOfFragments, 93 HoareAnnotationTreeSize, 3 FomulaSimplifications, 798 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 48 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 3808 NumberOfCodeBlocks, 3808 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 3797 ConstructedInterpolants, 0 QuantifiedInterpolants, 5873925 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1835 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 5195/5264 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...