./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label58.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_8303ee2e-c242-4c23-8447-8761e814b27b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label58.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/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 a3d221c588c349503d67f0a66f4914e82b09d7a1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:58:28,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:58:28,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:58:28,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:58:28,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:58:28,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:58:28,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:58:28,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:58:28,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:58:28,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:58:28,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:58:28,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:58:28,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:58:28,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:58:28,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:58:28,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:58:28,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:58:28,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:58:28,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:58:28,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:58:28,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:58:28,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:58:28,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:58:28,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:58:28,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:58:28,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:58:28,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:58:28,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:58:28,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:58:28,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:58:28,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:58:28,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:58:28,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:58:28,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:58:28,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:58:28,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:58:28,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:58:28,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:58:28,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:58:28,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:58:28,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:58:28,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 21:58:28,511 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:58:28,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:58:28,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:58:28,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:58:28,515 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:58:28,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:58:28,515 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:58:28,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:58:28,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:58:28,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:58:28,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:58:28,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:58:28,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:58:28,519 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:58:28,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:58:28,519 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:58:28,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:58:28,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:58:28,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:58:28,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:58:28,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:58:28,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:58:28,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:58:28,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:58:28,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:58:28,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:58:28,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:58:28,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:58:28,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:58:28,523 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_8303ee2e-c242-4c23-8447-8761e814b27b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3d221c588c349503d67f0a66f4914e82b09d7a1 [2020-11-29 21:58:28,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:58:28,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:58:28,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:58:28,914 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:58:28,915 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:58:28,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label58.c [2020-11-29 21:58:29,021 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/bin/uautomizer/data/5c825c8aa/e274e45be73b4007b0f239be5f54fdb1/FLAG5ab65bc2d [2020-11-29 21:58:29,854 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:58:29,855 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/sv-benchmarks/c/eca-rers2012/Problem01_label58.c [2020-11-29 21:58:29,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/bin/uautomizer/data/5c825c8aa/e274e45be73b4007b0f239be5f54fdb1/FLAG5ab65bc2d [2020-11-29 21:58:30,037 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/bin/uautomizer/data/5c825c8aa/e274e45be73b4007b0f239be5f54fdb1 [2020-11-29 21:58:30,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:58:30,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:58:30,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:58:30,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:58:30,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:58:30,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:58:30" (1/1) ... [2020-11-29 21:58:30,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3838c0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:30, skipping insertion in model container [2020-11-29 21:58:30,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:58:30" (1/1) ... [2020-11-29 21:58:30,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:58:30,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:58:30,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:58:30,658 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:58:30,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:58:30,892 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:58:30,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:30 WrapperNode [2020-11-29 21:58:30,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:58:30,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:58:30,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:58:30,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:58:30,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:30" (1/1) ... [2020-11-29 21:58:30,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:30" (1/1) ... [2020-11-29 21:58:30,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:58:30,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:58:30,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:58:30,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:58:30,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:30" (1/1) ... [2020-11-29 21:58:30,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:30" (1/1) ... [2020-11-29 21:58:30,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:30" (1/1) ... [2020-11-29 21:58:30,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:30" (1/1) ... [2020-11-29 21:58:31,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:30" (1/1) ... [2020-11-29 21:58:31,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:30" (1/1) ... [2020-11-29 21:58:31,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:30" (1/1) ... [2020-11-29 21:58:31,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:58:31,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:58:31,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:58:31,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:58:31,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/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 [2020-11-29 21:58:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:58:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:58:31,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:58:31,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:58:33,422 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:58:33,424 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 21:58:33,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:58:33 BoogieIcfgContainer [2020-11-29 21:58:33,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:58:33,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:58:33,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:58:33,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:58:33,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:58:30" (1/3) ... [2020-11-29 21:58:33,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44da7dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:58:33, skipping insertion in model container [2020-11-29 21:58:33,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:58:30" (2/3) ... [2020-11-29 21:58:33,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44da7dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:58:33, skipping insertion in model container [2020-11-29 21:58:33,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:58:33" (3/3) ... [2020-11-29 21:58:33,441 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label58.c [2020-11-29 21:58:33,452 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:58:33,456 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:58:33,471 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:58:33,504 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:58:33,504 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:58:33,505 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:58:33,505 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:58:33,505 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:58:33,505 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:58:33,505 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:58:33,506 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:58:33,532 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-11-29 21:58:33,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-11-29 21:58:33,545 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:58:33,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:33,546 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:58:33,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:33,553 INFO L82 PathProgramCache]: Analyzing trace with hash -2041810178, now seen corresponding path program 1 times [2020-11-29 21:58:33,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:33,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111196051] [2020-11-29 21:58:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:58:34,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111196051] [2020-11-29 21:58:34,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:58:34,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:58:34,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475045266] [2020-11-29 21:58:34,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:58:34,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:34,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:58:34,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:58:34,080 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-11-29 21:58:35,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:35,756 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-11-29 21:58:35,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:58:35,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-11-29 21:58:35,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:58:35,774 INFO L225 Difference]: With dead ends: 529 [2020-11-29 21:58:35,774 INFO L226 Difference]: Without dead ends: 266 [2020-11-29 21:58:35,779 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 [2020-11-29 21:58:35,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-29 21:58:35,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-29 21:58:35,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-29 21:58:35,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions. [2020-11-29 21:58:35,894 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 99 [2020-11-29 21:58:35,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:58:35,895 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions. [2020-11-29 21:58:35,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:58:35,896 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions. [2020-11-29 21:58:35,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-29 21:58:35,909 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:58:35,909 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:35,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:58:35,910 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:58:35,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:35,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1901547932, now seen corresponding path program 1 times [2020-11-29 21:58:35,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:35,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604416416] [2020-11-29 21:58:35,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:36,028 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:58:36,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604416416] [2020-11-29 21:58:36,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:58:36,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:58:36,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915808579] [2020-11-29 21:58:36,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:58:36,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:36,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:58:36,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:58:36,038 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand 3 states. [2020-11-29 21:58:36,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:36,887 INFO L93 Difference]: Finished difference Result 794 states and 1172 transitions. [2020-11-29 21:58:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:58:36,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-11-29 21:58:36,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:58:36,893 INFO L225 Difference]: With dead ends: 794 [2020-11-29 21:58:36,894 INFO L226 Difference]: Without dead ends: 530 [2020-11-29 21:58:36,897 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 [2020-11-29 21:58:36,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-11-29 21:58:36,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 528. [2020-11-29 21:58:36,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-29 21:58:36,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions. [2020-11-29 21:58:36,957 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 104 [2020-11-29 21:58:36,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:58:36,957 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions. [2020-11-29 21:58:36,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:58:36,958 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions. [2020-11-29 21:58:36,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-11-29 21:58:36,965 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:58:36,966 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:36,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 21:58:36,966 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:58:36,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:36,969 INFO L82 PathProgramCache]: Analyzing trace with hash 131339897, now seen corresponding path program 1 times [2020-11-29 21:58:36,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:36,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289610223] [2020-11-29 21:58:36,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:37,151 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:58:37,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289610223] [2020-11-29 21:58:37,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:58:37,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:58:37,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783631561] [2020-11-29 21:58:37,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:58:37,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:37,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:58:37,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:58:37,161 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand 4 states. [2020-11-29 21:58:38,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:38,460 INFO L93 Difference]: Finished difference Result 1840 states and 2594 transitions. [2020-11-29 21:58:38,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:58:38,460 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-11-29 21:58:38,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:58:38,469 INFO L225 Difference]: With dead ends: 1840 [2020-11-29 21:58:38,470 INFO L226 Difference]: Without dead ends: 1314 [2020-11-29 21:58:38,471 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 [2020-11-29 21:58:38,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-11-29 21:58:38,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2020-11-29 21:58:38,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-11-29 21:58:38,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1705 transitions. [2020-11-29 21:58:38,516 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1705 transitions. Word has length 111 [2020-11-29 21:58:38,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:58:38,517 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1705 transitions. [2020-11-29 21:58:38,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:58:38,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1705 transitions. [2020-11-29 21:58:38,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-11-29 21:58:38,524 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:58:38,525 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:38,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 21:58:38,525 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:58:38,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:38,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1936807773, now seen corresponding path program 1 times [2020-11-29 21:58:38,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:38,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955028832] [2020-11-29 21:58:38,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:38,713 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:58:38,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955028832] [2020-11-29 21:58:38,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:58:38,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:58:38,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530758497] [2020-11-29 21:58:38,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:58:38,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:38,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:58:38,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:58:38,717 INFO L87 Difference]: Start difference. First operand 1314 states and 1705 transitions. Second operand 3 states. [2020-11-29 21:58:39,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:39,535 INFO L93 Difference]: Finished difference Result 3281 states and 4189 transitions. [2020-11-29 21:58:39,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:58:39,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-11-29 21:58:39,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:58:39,549 INFO L225 Difference]: With dead ends: 3281 [2020-11-29 21:58:39,549 INFO L226 Difference]: Without dead ends: 1969 [2020-11-29 21:58:39,552 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 [2020-11-29 21:58:39,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-11-29 21:58:39,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707. [2020-11-29 21:58:39,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2020-11-29 21:58:39,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2140 transitions. [2020-11-29 21:58:39,625 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2140 transitions. Word has length 114 [2020-11-29 21:58:39,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:58:39,626 INFO L481 AbstractCegarLoop]: Abstraction has 1707 states and 2140 transitions. [2020-11-29 21:58:39,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:58:39,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2140 transitions. [2020-11-29 21:58:39,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-11-29 21:58:39,630 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:58:39,631 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:39,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 21:58:39,631 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:58:39,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:39,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1844233745, now seen corresponding path program 1 times [2020-11-29 21:58:39,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:39,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949625889] [2020-11-29 21:58:39,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:39,760 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 21:58:39,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949625889] [2020-11-29 21:58:39,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:58:39,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:58:39,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182171538] [2020-11-29 21:58:39,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:58:39,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:39,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:58:39,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:58:39,764 INFO L87 Difference]: Start difference. First operand 1707 states and 2140 transitions. Second operand 3 states. [2020-11-29 21:58:40,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:40,633 INFO L93 Difference]: Finished difference Result 4067 states and 5157 transitions. [2020-11-29 21:58:40,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:58:40,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-11-29 21:58:40,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:58:40,649 INFO L225 Difference]: With dead ends: 4067 [2020-11-29 21:58:40,649 INFO L226 Difference]: Without dead ends: 2231 [2020-11-29 21:58:40,652 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 [2020-11-29 21:58:40,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-11-29 21:58:40,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1969. [2020-11-29 21:58:40,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-11-29 21:58:40,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2277 transitions. [2020-11-29 21:58:40,716 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2277 transitions. Word has length 115 [2020-11-29 21:58:40,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:58:40,716 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2277 transitions. [2020-11-29 21:58:40,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:58:40,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2277 transitions. [2020-11-29 21:58:40,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-11-29 21:58:40,721 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:58:40,721 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:40,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 21:58:40,722 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:58:40,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:40,723 INFO L82 PathProgramCache]: Analyzing trace with hash -897252107, now seen corresponding path program 1 times [2020-11-29 21:58:40,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:40,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019663437] [2020-11-29 21:58:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 21:58:40,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019663437] [2020-11-29 21:58:40,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:58:40,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:58:40,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033320440] [2020-11-29 21:58:40,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:58:40,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:40,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:58:40,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:58:40,881 INFO L87 Difference]: Start difference. First operand 1969 states and 2277 transitions. Second operand 4 states. [2020-11-29 21:58:41,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:41,734 INFO L93 Difference]: Finished difference Result 4067 states and 4698 transitions. [2020-11-29 21:58:41,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:58:41,735 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2020-11-29 21:58:41,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:58:41,749 INFO L225 Difference]: With dead ends: 4067 [2020-11-29 21:58:41,749 INFO L226 Difference]: Without dead ends: 2100 [2020-11-29 21:58:41,752 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 [2020-11-29 21:58:41,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2020-11-29 21:58:41,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2100. [2020-11-29 21:58:41,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-11-29 21:58:41,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2353 transitions. [2020-11-29 21:58:41,836 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2353 transitions. Word has length 119 [2020-11-29 21:58:41,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:58:41,841 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2353 transitions. [2020-11-29 21:58:41,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:58:41,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2353 transitions. [2020-11-29 21:58:41,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-29 21:58:41,848 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:58:41,848 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:41,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 21:58:41,850 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:58:41,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:41,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1843950389, now seen corresponding path program 1 times [2020-11-29 21:58:41,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:41,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628521148] [2020-11-29 21:58:41,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:42,035 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-29 21:58:42,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628521148] [2020-11-29 21:58:42,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:58:42,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:58:42,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406917027] [2020-11-29 21:58:42,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:58:42,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:42,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:58:42,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:58:42,039 INFO L87 Difference]: Start difference. First operand 2100 states and 2353 transitions. Second operand 4 states. [2020-11-29 21:58:43,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:43,088 INFO L93 Difference]: Finished difference Result 4198 states and 4704 transitions. [2020-11-29 21:58:43,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:58:43,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-11-29 21:58:43,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:58:43,104 INFO L225 Difference]: With dead ends: 4198 [2020-11-29 21:58:43,104 INFO L226 Difference]: Without dead ends: 2100 [2020-11-29 21:58:43,108 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 [2020-11-29 21:58:43,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2020-11-29 21:58:43,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2100. [2020-11-29 21:58:43,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-11-29 21:58:43,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2332 transitions. [2020-11-29 21:58:43,162 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2332 transitions. Word has length 148 [2020-11-29 21:58:43,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:58:43,163 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2332 transitions. [2020-11-29 21:58:43,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:58:43,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2332 transitions. [2020-11-29 21:58:43,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-11-29 21:58:43,168 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:58:43,169 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:43,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 21:58:43,169 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:58:43,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:43,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1183827364, now seen corresponding path program 1 times [2020-11-29 21:58:43,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:43,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114843194] [2020-11-29 21:58:43,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:43,355 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-29 21:58:43,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114843194] [2020-11-29 21:58:43,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:58:43,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:58:43,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724871093] [2020-11-29 21:58:43,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:58:43,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:43,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:58:43,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:58:43,359 INFO L87 Difference]: Start difference. First operand 2100 states and 2332 transitions. Second operand 3 states. [2020-11-29 21:58:44,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:44,054 INFO L93 Difference]: Finished difference Result 4722 states and 5248 transitions. [2020-11-29 21:58:44,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:58:44,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-11-29 21:58:44,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:58:44,075 INFO L225 Difference]: With dead ends: 4722 [2020-11-29 21:58:44,075 INFO L226 Difference]: Without dead ends: 2624 [2020-11-29 21:58:44,078 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 [2020-11-29 21:58:44,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2020-11-29 21:58:44,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2231. [2020-11-29 21:58:44,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-11-29 21:58:44,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2479 transitions. [2020-11-29 21:58:44,148 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2479 transitions. Word has length 165 [2020-11-29 21:58:44,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:58:44,150 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 2479 transitions. [2020-11-29 21:58:44,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:58:44,150 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2479 transitions. [2020-11-29 21:58:44,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-11-29 21:58:44,156 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:58:44,157 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:44,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 21:58:44,157 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:58:44,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:44,158 INFO L82 PathProgramCache]: Analyzing trace with hash 670790421, now seen corresponding path program 1 times [2020-11-29 21:58:44,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:44,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563818131] [2020-11-29 21:58:44,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:44,372 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-29 21:58:44,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563818131] [2020-11-29 21:58:44,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:58:44,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:58:44,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403000149] [2020-11-29 21:58:44,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:58:44,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:44,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:58:44,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:58:44,381 INFO L87 Difference]: Start difference. First operand 2231 states and 2479 transitions. Second operand 3 states. [2020-11-29 21:58:45,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:45,087 INFO L93 Difference]: Finished difference Result 4853 states and 5368 transitions. [2020-11-29 21:58:45,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:58:45,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-11-29 21:58:45,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:58:45,103 INFO L225 Difference]: With dead ends: 4853 [2020-11-29 21:58:45,103 INFO L226 Difference]: Without dead ends: 2624 [2020-11-29 21:58:45,107 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 [2020-11-29 21:58:45,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2020-11-29 21:58:45,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2493. [2020-11-29 21:58:45,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2493 states. [2020-11-29 21:58:45,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 2713 transitions. [2020-11-29 21:58:45,203 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 2713 transitions. Word has length 192 [2020-11-29 21:58:45,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:58:45,204 INFO L481 AbstractCegarLoop]: Abstraction has 2493 states and 2713 transitions. [2020-11-29 21:58:45,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:58:45,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 2713 transitions. [2020-11-29 21:58:45,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-11-29 21:58:45,212 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:58:45,212 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:45,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 21:58:45,213 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:58:45,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:45,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1772425708, now seen corresponding path program 1 times [2020-11-29 21:58:45,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:45,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513499961] [2020-11-29 21:58:45,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 131 proven. 38 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-29 21:58:45,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513499961] [2020-11-29 21:58:45,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489460084] [2020-11-29 21:58:45,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/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 [2020-11-29 21:58:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:45,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:58:45,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:58:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2020-11-29 21:58:45,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 21:58:45,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-11-29 21:58:45,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279318625] [2020-11-29 21:58:45,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:58:45,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:45,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:58:45,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:58:45,983 INFO L87 Difference]: Start difference. First operand 2493 states and 2713 transitions. Second operand 3 states. [2020-11-29 21:58:46,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:46,733 INFO L93 Difference]: Finished difference Result 5901 states and 6470 transitions. [2020-11-29 21:58:46,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:58:46,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-11-29 21:58:46,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:58:46,757 INFO L225 Difference]: With dead ends: 5901 [2020-11-29 21:58:46,758 INFO L226 Difference]: Without dead ends: 3410 [2020-11-29 21:58:46,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:58:46,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2020-11-29 21:58:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 1838. [2020-11-29 21:58:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-11-29 21:58:46,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2032 transitions. [2020-11-29 21:58:46,865 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2032 transitions. Word has length 205 [2020-11-29 21:58:46,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:58:46,865 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 2032 transitions. [2020-11-29 21:58:46,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:58:46,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2032 transitions. [2020-11-29 21:58:46,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-11-29 21:58:46,873 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:58:46,874 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:47,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-29 21:58:47,101 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:58:47,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:47,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1251007502, now seen corresponding path program 1 times [2020-11-29 21:58:47,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:47,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483284731] [2020-11-29 21:58:47,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:47,451 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 250 proven. 38 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2020-11-29 21:58:47,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483284731] [2020-11-29 21:58:47,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530838134] [2020-11-29 21:58:47,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/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 [2020-11-29 21:58:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:47,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:58:47,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:58:47,799 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2020-11-29 21:58:47,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 21:58:47,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-29 21:58:47,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122126539] [2020-11-29 21:58:47,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:58:47,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:47,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:58:47,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:58:47,802 INFO L87 Difference]: Start difference. First operand 1838 states and 2032 transitions. Second operand 3 states. [2020-11-29 21:58:48,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:48,566 INFO L93 Difference]: Finished difference Result 4198 states and 4684 transitions. [2020-11-29 21:58:48,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:58:48,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 260 [2020-11-29 21:58:48,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:58:48,580 INFO L225 Difference]: With dead ends: 4198 [2020-11-29 21:58:48,580 INFO L226 Difference]: Without dead ends: 2362 [2020-11-29 21:58:48,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:58:48,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-11-29 21:58:48,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2231. [2020-11-29 21:58:48,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-11-29 21:58:48,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2500 transitions. [2020-11-29 21:58:48,640 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2500 transitions. Word has length 260 [2020-11-29 21:58:48,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:58:48,641 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 2500 transitions. [2020-11-29 21:58:48,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:58:48,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2500 transitions. [2020-11-29 21:58:48,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-11-29 21:58:48,653 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:58:48,654 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:58:48,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 21:58:48,871 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:58:48,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:58:48,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1429083210, now seen corresponding path program 1 times [2020-11-29 21:58:48,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:58:48,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799091769] [2020-11-29 21:58:48,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:58:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:49,307 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 236 proven. 142 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-11-29 21:58:49,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799091769] [2020-11-29 21:58:49,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402218257] [2020-11-29 21:58:49,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/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 [2020-11-29 21:58:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:58:49,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 21:58:49,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:58:49,619 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-11-29 21:58:49,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 21:58:49,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-11-29 21:58:49,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937857301] [2020-11-29 21:58:49,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:58:49,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:58:49,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:58:49,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:58:49,621 INFO L87 Difference]: Start difference. First operand 2231 states and 2500 transitions. Second operand 3 states. [2020-11-29 21:58:50,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:58:50,300 INFO L93 Difference]: Finished difference Result 4982 states and 5596 transitions. [2020-11-29 21:58:50,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:58:50,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2020-11-29 21:58:50,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:58:50,305 INFO L225 Difference]: With dead ends: 4982 [2020-11-29 21:58:50,305 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 21:58:50,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:58:50,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 21:58:50,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 21:58:50,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 21:58:50,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 21:58:50,311 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 269 [2020-11-29 21:58:50,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:58:50,311 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:58:50,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:58:50,311 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 21:58:50,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 21:58:50,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-29 21:58:50,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 21:58:50,762 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-29 21:58:50,762 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-29 21:58:50,762 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-29 21:58:50,762 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-29 21:58:50,762 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-29 21:58:50,762 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-29 21:58:50,762 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-29 21:58:50,762 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-29 21:58:50,762 INFO L274 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,763 INFO L274 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,763 INFO L274 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,763 INFO L274 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,763 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-11-29 21:58:50,763 INFO L274 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,763 INFO L274 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,763 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-29 21:58:50,763 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-29 21:58:50,763 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-29 21:58:50,763 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-29 21:58:50,763 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-29 21:58:50,764 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-29 21:58:50,764 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-29 21:58:50,764 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-11-29 21:58:50,764 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-29 21:58:50,764 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-29 21:58:50,764 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-29 21:58:50,764 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-29 21:58:50,764 INFO L274 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,764 INFO L274 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,764 INFO L274 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,765 INFO L274 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,765 INFO L274 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,765 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-29 21:58:50,765 INFO L274 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,765 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-29 21:58:50,765 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-29 21:58:50,765 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-29 21:58:50,765 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-29 21:58:50,765 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-29 21:58:50,765 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-29 21:58:50,765 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-29 21:58:50,766 INFO L274 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-11-29 21:58:50,766 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-29 21:58:50,766 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-29 21:58:50,766 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-29 21:58:50,766 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-29 21:58:50,766 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-29 21:58:50,766 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-29 21:58:50,766 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,766 INFO L274 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,766 INFO L274 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,766 INFO L274 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,767 INFO L274 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,767 INFO L274 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,767 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-29 21:58:50,767 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-29 21:58:50,767 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-29 21:58:50,767 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-29 21:58:50,767 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-29 21:58:50,767 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-29 21:58:50,767 INFO L274 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-11-29 21:58:50,767 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-29 21:58:50,767 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-29 21:58:50,768 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-29 21:58:50,768 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 21:58:50,768 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-29 21:58:50,768 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-29 21:58:50,772 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,772 INFO L274 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,773 INFO L274 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,773 INFO L274 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,773 INFO L274 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,773 INFO L274 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,773 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-29 21:58:50,773 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-29 21:58:50,774 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-29 21:58:50,774 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-29 21:58:50,774 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-29 21:58:50,774 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-29 21:58:50,774 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-29 21:58:50,774 INFO L274 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-11-29 21:58:50,774 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-29 21:58:50,775 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-29 21:58:50,775 INFO L274 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,775 INFO L274 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,775 INFO L274 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,776 INFO L274 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,776 INFO L274 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,776 INFO L274 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,777 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-29 21:58:50,778 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-29 21:58:50,778 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-29 21:58:50,779 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-29 21:58:50,779 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-29 21:58:50,779 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-29 21:58:50,779 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-29 21:58:50,779 INFO L274 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-11-29 21:58:50,779 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-29 21:58:50,780 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-29 21:58:50,780 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-29 21:58:50,780 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-29 21:58:50,780 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-29 21:58:50,780 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-29 21:58:50,780 INFO L274 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-11-29 21:58:50,781 INFO L274 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,781 INFO L274 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,781 INFO L274 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,781 INFO L274 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,781 INFO L274 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,781 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 21:58:50,781 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-29 21:58:50,782 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-29 21:58:50,782 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-29 21:58:50,782 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-29 21:58:50,782 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-29 21:58:50,782 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-29 21:58:50,782 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-29 21:58:50,783 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-29 21:58:50,783 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-29 21:58:50,784 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (= ~a16~0 6))) (or (and .cse0 (<= ~a8~0 13)) (<= ~a16~0 5) (and .cse0 (<= 15 ~a8~0)) (and (= ~a21~0 1) (= ~a20~0 1)))) [2020-11-29 21:58:50,784 INFO L274 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,784 INFO L274 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,784 INFO L274 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,784 INFO L274 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,785 INFO L274 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,785 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-29 21:58:50,785 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-29 21:58:50,785 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-29 21:58:50,785 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-29 21:58:50,785 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-29 21:58:50,786 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-29 21:58:50,786 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-29 21:58:50,786 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-29 21:58:50,786 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-29 21:58:50,786 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-29 21:58:50,786 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-29 21:58:50,787 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-29 21:58:50,787 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 21:58:50,787 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-29 21:58:50,787 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-29 21:58:50,787 INFO L274 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,787 INFO L274 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,787 INFO L274 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,788 INFO L274 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,788 INFO L274 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,788 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-29 21:58:50,788 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-29 21:58:50,788 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-29 21:58:50,788 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-29 21:58:50,789 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-29 21:58:50,789 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-29 21:58:50,789 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-29 21:58:50,789 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-29 21:58:50,789 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-29 21:58:50,789 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 21:58:50,790 INFO L274 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,790 INFO L274 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,791 INFO L274 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,791 INFO L274 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,791 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-29 21:58:50,791 INFO L274 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,791 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-29 21:58:50,791 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-29 21:58:50,792 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-29 21:58:50,792 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-29 21:58:50,792 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-29 21:58:50,792 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-29 21:58:50,792 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-29 21:58:50,792 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-29 21:58:50,793 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-29 21:58:50,793 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-29 21:58:50,794 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-29 21:58:50,794 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-29 21:58:50,794 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-29 21:58:50,794 INFO L274 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,794 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (= ~a16~0 6))) (or (and .cse0 (<= ~a8~0 13)) (<= ~a16~0 5) (and .cse0 (<= 15 ~a8~0)) (and (= ~a21~0 1) (= ~a20~0 1)))) [2020-11-29 21:58:50,795 INFO L274 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,795 INFO L274 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,795 INFO L274 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,795 INFO L274 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,795 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-29 21:58:50,795 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 21:58:50,796 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 21:58:50,796 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-29 21:58:50,796 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-29 21:58:50,796 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-29 21:58:50,796 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-29 21:58:50,796 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-29 21:58:50,796 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-29 21:58:50,797 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-29 21:58:50,797 INFO L274 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,797 INFO L274 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,797 INFO L274 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,797 INFO L274 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,797 INFO L274 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 21:58:50,798 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-29 21:58:50,798 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-29 21:58:50,798 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-29 21:58:50,798 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-29 21:58:50,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:58:50 BoogieIcfgContainer [2020-11-29 21:58:50,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:58:50,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:58:50,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:58:50,829 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:58:50,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:58:33" (3/4) ... [2020-11-29 21:58:50,833 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 21:58:50,867 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 21:58:50,869 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 21:58:50,871 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 21:58:50,873 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 21:58:51,123 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8303ee2e-c242-4c23-8447-8761e814b27b/bin/uautomizer/witness.graphml [2020-11-29 21:58:51,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:58:51,126 INFO L168 Benchmark]: Toolchain (without parser) took 21082.73 ms. Allocated memory was 115.3 MB in the beginning and 325.1 MB in the end (delta: 209.7 MB). Free memory was 82.8 MB in the beginning and 104.2 MB in the end (delta: -21.3 MB). Peak memory consumption was 188.0 MB. Max. memory is 16.1 GB. [2020-11-29 21:58:51,127 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 75.5 MB. Free memory is still 35.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:58:51,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 850.98 ms. Allocated memory is still 115.3 MB. Free memory was 82.6 MB in the beginning and 75.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:58:51,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.03 ms. Allocated memory is still 115.3 MB. Free memory was 75.7 MB in the beginning and 70.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:58:51,129 INFO L168 Benchmark]: Boogie Preprocessor took 69.99 ms. Allocated memory is still 115.3 MB. Free memory was 70.1 MB in the beginning and 65.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 21:58:51,130 INFO L168 Benchmark]: RCFGBuilder took 2379.79 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 65.3 MB in the beginning and 81.5 MB in the end (delta: -16.3 MB). Peak memory consumption was 45.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:58:51,130 INFO L168 Benchmark]: TraceAbstraction took 17396.44 ms. Allocated memory was 140.5 MB in the beginning and 325.1 MB in the end (delta: 184.5 MB). Free memory was 81.1 MB in the beginning and 119.9 MB in the end (delta: -38.8 MB). Peak memory consumption was 146.8 MB. Max. memory is 16.1 GB. [2020-11-29 21:58:51,131 INFO L168 Benchmark]: Witness Printer took 295.85 ms. Allocated memory is still 325.1 MB. Free memory was 119.9 MB in the beginning and 104.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:58:51,134 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 75.5 MB. Free memory is still 35.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 850.98 ms. Allocated memory is still 115.3 MB. Free memory was 82.6 MB in the beginning and 75.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.03 ms. Allocated memory is still 115.3 MB. Free memory was 75.7 MB in the beginning and 70.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.99 ms. Allocated memory is still 115.3 MB. Free memory was 70.1 MB in the beginning and 65.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2379.79 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 65.3 MB in the beginning and 81.5 MB in the end (delta: -16.3 MB). Peak memory consumption was 45.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17396.44 ms. Allocated memory was 140.5 MB in the beginning and 325.1 MB in the end (delta: 184.5 MB). Free memory was 81.1 MB in the beginning and 119.9 MB in the end (delta: -38.8 MB). Peak memory consumption was 146.8 MB. Max. memory is 16.1 GB. * Witness Printer took 295.85 ms. Allocated memory is still 325.1 MB. Free memory was 119.9 MB in the beginning and 104.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 40]: Loop Invariant Derived loop invariant: (((a16 == 6 && a8 <= 13) || a16 <= 5) || (a16 == 6 && 15 <= a8)) || (a21 == 1 && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((a16 == 6 && a8 <= 13) || a16 <= 5) || (a16 == 6 && 15 <= a8)) || (a21 == 1 && a20 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.0s, OverallIterations: 12, TraceHistogramMax: 8, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 690 SDtfs, 1893 SDslu, 75 SDs, 0 SdLazy, 4457 SolverSat, 762 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 770 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2493occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 2753 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 51 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3744 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 2635 NumberOfCodeBlocks, 2635 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2620 ConstructedInterpolants, 0 QuantifiedInterpolants, 1754905 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1477 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 2192/2410 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...