./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label09.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_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label09.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/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 cdb3507876e494a6d2ec0c64a985202330adf152 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:18:05,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:18:05,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:18:05,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:18:05,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:18:05,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:18:05,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:18:05,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:18:05,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:18:05,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:18:05,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:18:05,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:18:05,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:18:05,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:18:05,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:18:05,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:18:05,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:18:05,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:18:05,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:18:05,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:18:05,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:18:05,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:18:05,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:18:05,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:18:05,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:18:05,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:18:05,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:18:05,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:18:05,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:18:05,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:18:05,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:18:05,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:18:05,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:18:05,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:18:05,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:18:05,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:18:05,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:18:05,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:18:05,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:18:05,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:18:05,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:18:05,352 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:18:05,400 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:18:05,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:18:05,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:18:05,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:18:05,404 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:18:05,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:18:05,404 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:18:05,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:18:05,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:18:05,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:18:05,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:18:05,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:18:05,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:18:05,408 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:18:05,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:18:05,408 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:18:05,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:18:05,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:18:05,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:18:05,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:18:05,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:18:05,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:18:05,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:18:05,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:18:05,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:18:05,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:18:05,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:18:05,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:18:05,412 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:18:05,412 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_b2a42711-c65b-49aa-b601-c566b03e320f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdb3507876e494a6d2ec0c64a985202330adf152 [2020-11-28 03:18:05,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:18:05,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:18:05,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:18:05,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:18:05,762 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:18:05,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem10_label09.c [2020-11-28 03:18:05,855 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/data/1f2190d1c/c6d69d987ee845b1b0ad15106ba0607a/FLAG87d69c7fa [2020-11-28 03:18:06,558 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:18:06,558 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/sv-benchmarks/c/eca-rers2012/Problem10_label09.c [2020-11-28 03:18:06,580 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/data/1f2190d1c/c6d69d987ee845b1b0ad15106ba0607a/FLAG87d69c7fa [2020-11-28 03:18:06,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/data/1f2190d1c/c6d69d987ee845b1b0ad15106ba0607a [2020-11-28 03:18:06,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:18:06,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:18:06,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:06,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:18:06,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:18:06,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:06" (1/1) ... [2020-11-28 03:18:06,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4c86be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:06, skipping insertion in model container [2020-11-28 03:18:06,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:06" (1/1) ... [2020-11-28 03:18:06,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:18:06,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:18:07,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:07,408 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:18:07,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:07,579 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:18:07,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07 WrapperNode [2020-11-28 03:18:07,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:07,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:07,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:18:07,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:18:07,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:07,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:18:07,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:18:07,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:18:07,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:18:07,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:18:07,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:18:07,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:18:07,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:18:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:18:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:18:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:18:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:18:09,864 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:18:09,865 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:18:09,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:09 BoogieIcfgContainer [2020-11-28 03:18:09,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:18:09,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:18:09,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:18:09,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:18:09,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:18:06" (1/3) ... [2020-11-28 03:18:09,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ff06c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:09, skipping insertion in model container [2020-11-28 03:18:09,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (2/3) ... [2020-11-28 03:18:09,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ff06c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:09, skipping insertion in model container [2020-11-28 03:18:09,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:09" (3/3) ... [2020-11-28 03:18:09,881 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label09.c [2020-11-28 03:18:09,900 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:18:09,906 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:18:09,917 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:18:09,956 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:18:09,956 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:18:09,957 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:18:09,957 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:18:09,957 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:18:09,957 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:18:09,957 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:18:09,958 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:18:09,980 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-11-28 03:18:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-28 03:18:09,989 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:09,990 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] [2020-11-28 03:18:09,991 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:09,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:09,998 INFO L82 PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times [2020-11-28 03:18:10,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:10,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977570702] [2020-11-28 03:18:10,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:10,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:10,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977570702] [2020-11-28 03:18:10,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:10,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:18:10,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415039611] [2020-11-28 03:18:10,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:10,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:10,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:10,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:10,506 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-11-28 03:18:11,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:11,970 INFO L93 Difference]: Finished difference Result 568 states and 982 transitions. [2020-11-28 03:18:11,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:11,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-11-28 03:18:11,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:12,005 INFO L225 Difference]: With dead ends: 568 [2020-11-28 03:18:12,012 INFO L226 Difference]: Without dead ends: 282 [2020-11-28 03:18:12,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:12,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-28 03:18:12,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-11-28 03:18:12,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-28 03:18:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 412 transitions. [2020-11-28 03:18:12,109 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 412 transitions. Word has length 56 [2020-11-28 03:18:12,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:12,111 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 412 transitions. [2020-11-28 03:18:12,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:12,112 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 412 transitions. [2020-11-28 03:18:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-11-28 03:18:12,124 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:12,125 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:12,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:18:12,125 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:12,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:12,126 INFO L82 PathProgramCache]: Analyzing trace with hash -770355852, now seen corresponding path program 1 times [2020-11-28 03:18:12,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:12,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959331920] [2020-11-28 03:18:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:12,386 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:12,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959331920] [2020-11-28 03:18:12,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:12,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:18:12,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007278906] [2020-11-28 03:18:12,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:12,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:12,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:12,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:12,393 INFO L87 Difference]: Start difference. First operand 282 states and 412 transitions. Second operand 3 states. [2020-11-28 03:18:13,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:13,332 INFO L93 Difference]: Finished difference Result 840 states and 1231 transitions. [2020-11-28 03:18:13,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:13,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-11-28 03:18:13,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:13,340 INFO L225 Difference]: With dead ends: 840 [2020-11-28 03:18:13,340 INFO L226 Difference]: Without dead ends: 560 [2020-11-28 03:18:13,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:13,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-11-28 03:18:13,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-11-28 03:18:13,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-11-28 03:18:13,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 730 transitions. [2020-11-28 03:18:13,405 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 730 transitions. Word has length 126 [2020-11-28 03:18:13,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:13,408 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 730 transitions. [2020-11-28 03:18:13,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:13,408 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 730 transitions. [2020-11-28 03:18:13,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-11-28 03:18:13,415 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:13,415 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:13,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:18:13,417 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:13,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:13,418 INFO L82 PathProgramCache]: Analyzing trace with hash 939377742, now seen corresponding path program 1 times [2020-11-28 03:18:13,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:13,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844066217] [2020-11-28 03:18:13,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:13,808 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 35 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:13,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844066217] [2020-11-28 03:18:13,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104727581] [2020-11-28 03:18:13,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:18:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:13,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:18:13,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:18:14,083 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:14,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:18:14,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-28 03:18:14,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847818504] [2020-11-28 03:18:14,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:14,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:14,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:14,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:18:14,092 INFO L87 Difference]: Start difference. First operand 560 states and 730 transitions. Second operand 3 states. [2020-11-28 03:18:15,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:15,132 INFO L93 Difference]: Finished difference Result 1396 states and 1867 transitions. [2020-11-28 03:18:15,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:15,133 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-11-28 03:18:15,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:15,141 INFO L225 Difference]: With dead ends: 1396 [2020-11-28 03:18:15,141 INFO L226 Difference]: Without dead ends: 838 [2020-11-28 03:18:15,143 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:18:15,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-11-28 03:18:15,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-11-28 03:18:15,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-11-28 03:18:15,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1083 transitions. [2020-11-28 03:18:15,184 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1083 transitions. Word has length 131 [2020-11-28 03:18:15,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:15,187 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1083 transitions. [2020-11-28 03:18:15,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:15,188 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1083 transitions. [2020-11-28 03:18:15,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-11-28 03:18:15,190 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:15,191 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:15,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-28 03:18:15,408 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:15,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:15,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1566187046, now seen corresponding path program 1 times [2020-11-28 03:18:15,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:15,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152500132] [2020-11-28 03:18:15,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:15,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152500132] [2020-11-28 03:18:15,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:15,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:18:15,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051275551] [2020-11-28 03:18:15,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:15,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:15,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:15,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:15,603 INFO L87 Difference]: Start difference. First operand 838 states and 1083 transitions. Second operand 3 states. [2020-11-28 03:18:16,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:16,553 INFO L93 Difference]: Finished difference Result 2230 states and 2835 transitions. [2020-11-28 03:18:16,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:16,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-11-28 03:18:16,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:16,563 INFO L225 Difference]: With dead ends: 2230 [2020-11-28 03:18:16,566 INFO L226 Difference]: Without dead ends: 1394 [2020-11-28 03:18:16,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:16,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-11-28 03:18:16,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2020-11-28 03:18:16,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-11-28 03:18:16,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1505 transitions. [2020-11-28 03:18:16,610 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1505 transitions. Word has length 147 [2020-11-28 03:18:16,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:16,611 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1505 transitions. [2020-11-28 03:18:16,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:16,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1505 transitions. [2020-11-28 03:18:16,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-28 03:18:16,614 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:16,614 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:16,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:18:16,615 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:16,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:16,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1233778909, now seen corresponding path program 1 times [2020-11-28 03:18:16,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:16,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40143711] [2020-11-28 03:18:16,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:16,825 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:16,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40143711] [2020-11-28 03:18:16,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:16,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:18:16,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463069801] [2020-11-28 03:18:16,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:16,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:16,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:16,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:16,829 INFO L87 Difference]: Start difference. First operand 1255 states and 1505 transitions. Second operand 3 states. [2020-11-28 03:18:17,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:17,705 INFO L93 Difference]: Finished difference Result 2647 states and 3157 transitions. [2020-11-28 03:18:17,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:17,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-28 03:18:17,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:17,717 INFO L225 Difference]: With dead ends: 2647 [2020-11-28 03:18:17,717 INFO L226 Difference]: Without dead ends: 1394 [2020-11-28 03:18:17,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:17,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-11-28 03:18:17,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2020-11-28 03:18:17,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2020-11-28 03:18:17,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1649 transitions. [2020-11-28 03:18:17,757 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1649 transitions. Word has length 148 [2020-11-28 03:18:17,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:17,758 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1649 transitions. [2020-11-28 03:18:17,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:17,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1649 transitions. [2020-11-28 03:18:17,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-11-28 03:18:17,763 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:17,763 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:17,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:18:17,764 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:17,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:17,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1549876009, now seen corresponding path program 1 times [2020-11-28 03:18:17,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:17,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528819879] [2020-11-28 03:18:17,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:17,962 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-11-28 03:18:17,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528819879] [2020-11-28 03:18:17,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:17,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:18:17,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504310449] [2020-11-28 03:18:17,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:17,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:17,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:17,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:17,966 INFO L87 Difference]: Start difference. First operand 1394 states and 1649 transitions. Second operand 3 states. [2020-11-28 03:18:18,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:18,898 INFO L93 Difference]: Finished difference Result 2925 states and 3521 transitions. [2020-11-28 03:18:18,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:18,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-11-28 03:18:18,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:18,915 INFO L225 Difference]: With dead ends: 2925 [2020-11-28 03:18:18,915 INFO L226 Difference]: Without dead ends: 1672 [2020-11-28 03:18:18,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:18,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2020-11-28 03:18:18,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2020-11-28 03:18:18,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1672 states. [2020-11-28 03:18:18,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1952 transitions. [2020-11-28 03:18:18,961 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1952 transitions. Word has length 214 [2020-11-28 03:18:18,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:18,961 INFO L481 AbstractCegarLoop]: Abstraction has 1672 states and 1952 transitions. [2020-11-28 03:18:18,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:18,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1952 transitions. [2020-11-28 03:18:18,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-11-28 03:18:18,967 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:18,967 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:18,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:18:18,976 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:18,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:18,977 INFO L82 PathProgramCache]: Analyzing trace with hash 829823637, now seen corresponding path program 1 times [2020-11-28 03:18:18,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:18,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825907396] [2020-11-28 03:18:18,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:19,305 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-11-28 03:18:19,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825907396] [2020-11-28 03:18:19,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79040350] [2020-11-28 03:18:19,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:18:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:19,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:18:19,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:18:19,667 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2020-11-28 03:18:19,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:18:19,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-28 03:18:19,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697664340] [2020-11-28 03:18:19,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:19,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:19,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:19,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:18:19,670 INFO L87 Difference]: Start difference. First operand 1672 states and 1952 transitions. Second operand 3 states. [2020-11-28 03:18:20,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:20,642 INFO L93 Difference]: Finished difference Result 2508 states and 2933 transitions. [2020-11-28 03:18:20,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:20,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2020-11-28 03:18:20,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:20,657 INFO L225 Difference]: With dead ends: 2508 [2020-11-28 03:18:20,658 INFO L226 Difference]: Without dead ends: 2506 [2020-11-28 03:18:20,662 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:18:20,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2020-11-28 03:18:20,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 1811. [2020-11-28 03:18:20,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1811 states. [2020-11-28 03:18:20,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2141 transitions. [2020-11-28 03:18:20,721 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2141 transitions. Word has length 215 [2020-11-28 03:18:20,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:20,722 INFO L481 AbstractCegarLoop]: Abstraction has 1811 states and 2141 transitions. [2020-11-28 03:18:20,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:20,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2141 transitions. [2020-11-28 03:18:20,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-11-28 03:18:20,727 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:20,727 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:20,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:18:20,952 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:20,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:20,952 INFO L82 PathProgramCache]: Analyzing trace with hash 84723460, now seen corresponding path program 1 times [2020-11-28 03:18:20,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:20,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805762100] [2020-11-28 03:18:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:21,182 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:21,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805762100] [2020-11-28 03:18:21,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:21,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:18:21,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3850352] [2020-11-28 03:18:21,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:21,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:21,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:21,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:21,186 INFO L87 Difference]: Start difference. First operand 1811 states and 2141 transitions. Second operand 3 states. [2020-11-28 03:18:22,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:22,127 INFO L93 Difference]: Finished difference Result 3898 states and 4694 transitions. [2020-11-28 03:18:22,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:22,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2020-11-28 03:18:22,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:22,141 INFO L225 Difference]: With dead ends: 3898 [2020-11-28 03:18:22,142 INFO L226 Difference]: Without dead ends: 2228 [2020-11-28 03:18:22,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:22,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2020-11-28 03:18:22,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2089. [2020-11-28 03:18:22,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-11-28 03:18:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2440 transitions. [2020-11-28 03:18:22,200 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2440 transitions. Word has length 216 [2020-11-28 03:18:22,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:22,201 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2440 transitions. [2020-11-28 03:18:22,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:22,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2440 transitions. [2020-11-28 03:18:22,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-11-28 03:18:22,229 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:22,230 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-11-28 03:18:22,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:18:22,230 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:22,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:22,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1314719622, now seen corresponding path program 1 times [2020-11-28 03:18:22,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:22,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244116237] [2020-11-28 03:18:22,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:22,614 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-11-28 03:18:22,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244116237] [2020-11-28 03:18:22,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:22,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:18:22,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191578591] [2020-11-28 03:18:22,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:18:22,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:22,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:18:22,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:18:22,617 INFO L87 Difference]: Start difference. First operand 2089 states and 2440 transitions. Second operand 7 states. [2020-11-28 03:18:23,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:23,732 INFO L93 Difference]: Finished difference Result 4092 states and 4789 transitions. [2020-11-28 03:18:23,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:18:23,733 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 268 [2020-11-28 03:18:23,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:23,744 INFO L225 Difference]: With dead ends: 4092 [2020-11-28 03:18:23,744 INFO L226 Difference]: Without dead ends: 2089 [2020-11-28 03:18:23,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:18:23,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-11-28 03:18:23,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2020-11-28 03:18:23,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-11-28 03:18:23,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2429 transitions. [2020-11-28 03:18:23,805 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2429 transitions. Word has length 268 [2020-11-28 03:18:23,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:23,806 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2429 transitions. [2020-11-28 03:18:23,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:18:23,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2429 transitions. [2020-11-28 03:18:23,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-11-28 03:18:23,814 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:23,815 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-11-28 03:18:23,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:18:23,816 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:23,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:23,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1123266284, now seen corresponding path program 1 times [2020-11-28 03:18:23,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:23,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948985842] [2020-11-28 03:18:23,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:24,116 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 364 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:24,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948985842] [2020-11-28 03:18:24,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:24,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:18:24,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683908165] [2020-11-28 03:18:24,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:18:24,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:24,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:18:24,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:18:24,119 INFO L87 Difference]: Start difference. First operand 2089 states and 2429 transitions. Second operand 4 states. [2020-11-28 03:18:25,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:25,201 INFO L93 Difference]: Finished difference Result 4315 states and 5054 transitions. [2020-11-28 03:18:25,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:18:25,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 304 [2020-11-28 03:18:25,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:25,217 INFO L225 Difference]: With dead ends: 4315 [2020-11-28 03:18:25,217 INFO L226 Difference]: Without dead ends: 2367 [2020-11-28 03:18:25,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:18:25,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2020-11-28 03:18:25,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 2367. [2020-11-28 03:18:25,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2367 states. [2020-11-28 03:18:25,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 2696 transitions. [2020-11-28 03:18:25,282 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 2696 transitions. Word has length 304 [2020-11-28 03:18:25,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:25,283 INFO L481 AbstractCegarLoop]: Abstraction has 2367 states and 2696 transitions. [2020-11-28 03:18:25,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:18:25,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 2696 transitions. [2020-11-28 03:18:25,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-11-28 03:18:25,293 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:25,293 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-11-28 03:18:25,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:18:25,294 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:25,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:25,296 INFO L82 PathProgramCache]: Analyzing trace with hash -402555470, now seen corresponding path program 1 times [2020-11-28 03:18:25,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:25,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480793021] [2020-11-28 03:18:25,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 59 proven. 102 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-11-28 03:18:25,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480793021] [2020-11-28 03:18:25,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134341012] [2020-11-28 03:18:25,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:18:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:26,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:18:26,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:18:26,209 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-11-28 03:18:26,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:18:26,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-28 03:18:26,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662289481] [2020-11-28 03:18:26,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:26,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:26,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:26,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:18:26,214 INFO L87 Difference]: Start difference. First operand 2367 states and 2696 transitions. Second operand 3 states. [2020-11-28 03:18:27,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:27,058 INFO L93 Difference]: Finished difference Result 3203 states and 3591 transitions. [2020-11-28 03:18:27,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:27,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 317 [2020-11-28 03:18:27,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:27,077 INFO L225 Difference]: With dead ends: 3203 [2020-11-28 03:18:27,077 INFO L226 Difference]: Without dead ends: 3201 [2020-11-28 03:18:27,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:18:27,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2020-11-28 03:18:27,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 2228. [2020-11-28 03:18:27,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2228 states. [2020-11-28 03:18:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2538 transitions. [2020-11-28 03:18:27,146 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2538 transitions. Word has length 317 [2020-11-28 03:18:27,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:27,147 INFO L481 AbstractCegarLoop]: Abstraction has 2228 states and 2538 transitions. [2020-11-28 03:18:27,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:27,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2538 transitions. [2020-11-28 03:18:27,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-11-28 03:18:27,153 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:27,154 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:27,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-28 03:18:27,380 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:27,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:27,380 INFO L82 PathProgramCache]: Analyzing trace with hash 2059727469, now seen corresponding path program 1 times [2020-11-28 03:18:27,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:27,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821148026] [2020-11-28 03:18:27,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:27,690 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2020-11-28 03:18:27,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821148026] [2020-11-28 03:18:27,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:27,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:18:27,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987225831] [2020-11-28 03:18:27,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:27,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:27,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:27,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:27,693 INFO L87 Difference]: Start difference. First operand 2228 states and 2538 transitions. Second operand 3 states. [2020-11-28 03:18:28,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:28,416 INFO L93 Difference]: Finished difference Result 2508 states and 2836 transitions. [2020-11-28 03:18:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:28,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 353 [2020-11-28 03:18:28,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:28,431 INFO L225 Difference]: With dead ends: 2508 [2020-11-28 03:18:28,432 INFO L226 Difference]: Without dead ends: 2506 [2020-11-28 03:18:28,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:28,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2020-11-28 03:18:28,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2089. [2020-11-28 03:18:28,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-11-28 03:18:28,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2388 transitions. [2020-11-28 03:18:28,486 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2388 transitions. Word has length 353 [2020-11-28 03:18:28,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:28,487 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2388 transitions. [2020-11-28 03:18:28,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:28,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2388 transitions. [2020-11-28 03:18:28,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-11-28 03:18:28,494 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:28,494 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-28 03:18:28,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:18:28,495 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:28,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:28,496 INFO L82 PathProgramCache]: Analyzing trace with hash -905171627, now seen corresponding path program 1 times [2020-11-28 03:18:28,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:28,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725274342] [2020-11-28 03:18:28,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:29,178 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 158 proven. 3 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2020-11-28 03:18:29,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725274342] [2020-11-28 03:18:29,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551635942] [2020-11-28 03:18:29,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:18:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:29,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:18:29,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:18:29,498 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2020-11-28 03:18:29,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:18:29,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-28 03:18:29,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018717052] [2020-11-28 03:18:29,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:29,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:29,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:29,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:18:29,501 INFO L87 Difference]: Start difference. First operand 2089 states and 2388 transitions. Second operand 3 states. [2020-11-28 03:18:30,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:30,154 INFO L93 Difference]: Finished difference Result 4035 states and 4630 transitions. [2020-11-28 03:18:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:30,155 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 374 [2020-11-28 03:18:30,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:30,155 INFO L225 Difference]: With dead ends: 4035 [2020-11-28 03:18:30,155 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:18:30,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:18:30,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:18:30,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:18:30,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:18:30,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:18:30,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 374 [2020-11-28 03:18:30,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:30,161 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:18:30,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:30,161 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:18:30,161 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:18:30,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:18:30,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:18:30,666 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 24 [2020-11-28 03:18:30,842 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 24 [2020-11-28 03:18:30,847 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-11-28 03:18:30,847 INFO L274 CegarLoopResult]: For program point L564(lines 564 582) no Hoare annotation was computed. [2020-11-28 03:18:30,847 INFO L274 CegarLoopResult]: For program point L333(lines 333 582) no Hoare annotation was computed. [2020-11-28 03:18:30,847 INFO L274 CegarLoopResult]: For program point L367(lines 367 582) no Hoare annotation was computed. [2020-11-28 03:18:30,847 INFO L274 CegarLoopResult]: For program point L301(lines 301 582) no Hoare annotation was computed. [2020-11-28 03:18:30,847 INFO L274 CegarLoopResult]: For program point L235(lines 235 582) no Hoare annotation was computed. [2020-11-28 03:18:30,847 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,847 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,848 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,848 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,848 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,848 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,848 INFO L274 CegarLoopResult]: For program point L533(lines 533 582) no Hoare annotation was computed. [2020-11-28 03:18:30,848 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-28 03:18:30,848 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-28 03:18:30,848 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-28 03:18:30,848 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-28 03:18:30,848 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-28 03:18:30,848 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-28 03:18:30,848 INFO L274 CegarLoopResult]: For program point L567(lines 567 582) no Hoare annotation was computed. [2020-11-28 03:18:30,849 INFO L274 CegarLoopResult]: For program point L435(lines 435 582) no Hoare annotation was computed. [2020-11-28 03:18:30,849 INFO L274 CegarLoopResult]: For program point L336(lines 336 582) no Hoare annotation was computed. [2020-11-28 03:18:30,849 INFO L274 CegarLoopResult]: For program point L270(lines 270 582) no Hoare annotation was computed. [2020-11-28 03:18:30,849 INFO L274 CegarLoopResult]: For program point L403(lines 403 582) no Hoare annotation was computed. [2020-11-28 03:18:30,849 INFO L274 CegarLoopResult]: For program point L370(lines 370 582) no Hoare annotation was computed. [2020-11-28 03:18:30,849 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,849 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,849 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,849 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,849 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,849 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,849 INFO L274 CegarLoopResult]: For program point L536(lines 536 582) no Hoare annotation was computed. [2020-11-28 03:18:30,849 INFO L274 CegarLoopResult]: For program point L503(lines 503 582) no Hoare annotation was computed. [2020-11-28 03:18:30,850 INFO L274 CegarLoopResult]: For program point L470(lines 470 582) no Hoare annotation was computed. [2020-11-28 03:18:30,850 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-28 03:18:30,850 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-28 03:18:30,850 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-28 03:18:30,850 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-28 03:18:30,850 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-28 03:18:30,850 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-28 03:18:30,850 INFO L274 CegarLoopResult]: For program point L339(lines 339 582) no Hoare annotation was computed. [2020-11-28 03:18:30,850 INFO L274 CegarLoopResult]: For program point L306(lines 306 582) no Hoare annotation was computed. [2020-11-28 03:18:30,850 INFO L274 CegarLoopResult]: For program point L241(lines 241 582) no Hoare annotation was computed. [2020-11-28 03:18:30,850 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,850 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,850 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,851 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,851 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,851 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,851 INFO L274 CegarLoopResult]: For program point L539(lines 539 582) no Hoare annotation was computed. [2020-11-28 03:18:30,855 INFO L274 CegarLoopResult]: For program point L440(lines 440 582) no Hoare annotation was computed. [2020-11-28 03:18:30,855 INFO L274 CegarLoopResult]: For program point L275(lines 275 582) no Hoare annotation was computed. [2020-11-28 03:18:30,855 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-28 03:18:30,855 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-28 03:18:30,855 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-28 03:18:30,856 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-28 03:18:30,856 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-28 03:18:30,856 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-28 03:18:30,856 INFO L274 CegarLoopResult]: For program point L573(lines 573 582) no Hoare annotation was computed. [2020-11-28 03:18:30,856 INFO L274 CegarLoopResult]: For program point L408(lines 408 582) no Hoare annotation was computed. [2020-11-28 03:18:30,856 INFO L274 CegarLoopResult]: For program point L375(lines 375 582) no Hoare annotation was computed. [2020-11-28 03:18:30,856 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 03:18:30,857 INFO L274 CegarLoopResult]: For program point L475(lines 475 582) no Hoare annotation was computed. [2020-11-28 03:18:30,857 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,857 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,857 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,857 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,857 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,857 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,858 INFO L274 CegarLoopResult]: For program point L509(lines 509 582) no Hoare annotation was computed. [2020-11-28 03:18:30,858 INFO L274 CegarLoopResult]: For program point L311(lines 311 582) no Hoare annotation was computed. [2020-11-28 03:18:30,858 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-28 03:18:30,858 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-28 03:18:30,858 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-28 03:18:30,858 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-28 03:18:30,858 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-28 03:18:30,859 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-28 03:18:30,859 INFO L274 CegarLoopResult]: For program point L345(lines 345 582) no Hoare annotation was computed. [2020-11-28 03:18:30,859 INFO L274 CegarLoopResult]: For program point L246(lines 246 582) no Hoare annotation was computed. [2020-11-28 03:18:30,859 INFO L274 CegarLoopResult]: For program point L544(lines 544 582) no Hoare annotation was computed. [2020-11-28 03:18:30,859 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,859 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,859 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,860 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,860 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,860 INFO L274 CegarLoopResult]: For program point L446(lines 446 582) no Hoare annotation was computed. [2020-11-28 03:18:30,860 INFO L274 CegarLoopResult]: For program point L413(lines 413 582) no Hoare annotation was computed. [2020-11-28 03:18:30,860 INFO L274 CegarLoopResult]: For program point L380(lines 380 582) no Hoare annotation was computed. [2020-11-28 03:18:30,860 INFO L274 CegarLoopResult]: For program point L281(lines 281 582) no Hoare annotation was computed. [2020-11-28 03:18:30,860 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-28 03:18:30,861 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-28 03:18:30,861 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-28 03:18:30,861 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-28 03:18:30,861 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-28 03:18:30,861 INFO L274 CegarLoopResult]: For program point L579(lines 579 582) no Hoare annotation was computed. [2020-11-28 03:18:30,861 INFO L274 CegarLoopResult]: For program point L249(lines 249 582) no Hoare annotation was computed. [2020-11-28 03:18:30,861 INFO L274 CegarLoopResult]: For program point L514(lines 514 582) no Hoare annotation was computed. [2020-11-28 03:18:30,862 INFO L274 CegarLoopResult]: For program point L481(lines 481 582) no Hoare annotation was computed. [2020-11-28 03:18:30,862 INFO L274 CegarLoopResult]: For program point L316(lines 316 582) no Hoare annotation was computed. [2020-11-28 03:18:30,862 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,862 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,862 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,862 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,862 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,863 INFO L274 CegarLoopResult]: For program point L350(lines 350 582) no Hoare annotation was computed. [2020-11-28 03:18:30,863 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:18:30,863 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-28 03:18:30,863 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-28 03:18:30,863 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-28 03:18:30,863 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-28 03:18:30,863 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-28 03:18:30,865 INFO L270 CegarLoopResult]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse1 (<= 7 ~a19~0)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 2) .cse1 .cse2 .cse3) (and (<= 3 ~a10~0) .cse0 .cse2 .cse3) (and (= ~a10~0 1) .cse0 .cse1 .cse2) (and .cse0 (= ~a10~0 0) .cse2))) [2020-11-28 03:18:30,866 INFO L274 CegarLoopResult]: For program point L550(lines 550 582) no Hoare annotation was computed. [2020-11-28 03:18:30,866 INFO L274 CegarLoopResult]: For program point L418(lines 418 582) no Hoare annotation was computed. [2020-11-28 03:18:30,866 INFO L274 CegarLoopResult]: For program point L385(lines 385 582) no Hoare annotation was computed. [2020-11-28 03:18:30,866 INFO L274 CegarLoopResult]: For program point L220(lines 220 582) no Hoare annotation was computed. [2020-11-28 03:18:30,866 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,866 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,866 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,867 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,867 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,867 INFO L274 CegarLoopResult]: For program point L452(lines 452 582) no Hoare annotation was computed. [2020-11-28 03:18:30,867 INFO L274 CegarLoopResult]: For program point L287(lines 287 582) no Hoare annotation was computed. [2020-11-28 03:18:30,867 INFO L274 CegarLoopResult]: For program point L254(lines 254 582) no Hoare annotation was computed. [2020-11-28 03:18:30,867 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-28 03:18:30,867 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-28 03:18:30,867 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-28 03:18:30,867 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-28 03:18:30,867 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-28 03:18:30,867 INFO L274 CegarLoopResult]: For program point L519(lines 519 582) no Hoare annotation was computed. [2020-11-28 03:18:30,867 INFO L274 CegarLoopResult]: For program point L486(lines 486 582) no Hoare annotation was computed. [2020-11-28 03:18:30,867 INFO L277 CegarLoopResult]: At program point L586(lines 586 602) the Hoare annotation is: true [2020-11-28 03:18:30,867 INFO L274 CegarLoopResult]: For program point L388(lines 388 582) no Hoare annotation was computed. [2020-11-28 03:18:30,868 INFO L274 CegarLoopResult]: For program point L355(lines 355 582) no Hoare annotation was computed. [2020-11-28 03:18:30,868 INFO L274 CegarLoopResult]: For program point L322(lines 322 582) no Hoare annotation was computed. [2020-11-28 03:18:30,868 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:18:30,868 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,868 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,868 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,868 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,868 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,868 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-28 03:18:30,868 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-28 03:18:30,868 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-28 03:18:30,868 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-28 03:18:30,868 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-28 03:18:30,869 INFO L274 CegarLoopResult]: For program point L555(lines 555 582) no Hoare annotation was computed. [2020-11-28 03:18:30,869 INFO L274 CegarLoopResult]: For program point L225(lines 225 582) no Hoare annotation was computed. [2020-11-28 03:18:30,869 INFO L274 CegarLoopResult]: For program point L424(lines 424 582) no Hoare annotation was computed. [2020-11-28 03:18:30,869 INFO L274 CegarLoopResult]: For program point L259(lines 259 582) no Hoare annotation was computed. [2020-11-28 03:18:30,869 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,869 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,869 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L524(lines 524 582) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L491(lines 491 582) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L458(lines 458 582) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L293(lines 293 582) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L558(lines 558 582) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L393(lines 393 582) no Hoare annotation was computed. [2020-11-28 03:18:30,870 INFO L274 CegarLoopResult]: For program point L327(lines 327 582) no Hoare annotation was computed. [2020-11-28 03:18:30,871 INFO L270 CegarLoopResult]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse1 (<= 7 ~a19~0)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 2) .cse1 .cse2 .cse3) (and (<= 3 ~a10~0) .cse0 .cse2 .cse3) (and (= ~a10~0 1) .cse0 .cse1 .cse2) (and .cse0 (= ~a10~0 0) .cse2))) [2020-11-28 03:18:30,871 INFO L274 CegarLoopResult]: For program point L361(lines 361 582) no Hoare annotation was computed. [2020-11-28 03:18:30,871 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,871 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,871 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,871 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,871 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-28 03:18:30,871 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,872 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,872 INFO L274 CegarLoopResult]: For program point L527(lines 527 582) no Hoare annotation was computed. [2020-11-28 03:18:30,872 INFO L274 CegarLoopResult]: For program point L296(lines 296 582) no Hoare annotation was computed. [2020-11-28 03:18:30,872 INFO L274 CegarLoopResult]: For program point L230(lines 230 582) no Hoare annotation was computed. [2020-11-28 03:18:30,872 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-28 03:18:30,872 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-28 03:18:30,872 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-28 03:18:30,873 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-28 03:18:30,873 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-28 03:18:30,873 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-28 03:18:30,873 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:18:30,873 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 03:18:30,873 INFO L274 CegarLoopResult]: For program point L429(lines 429 582) no Hoare annotation was computed. [2020-11-28 03:18:30,873 INFO L274 CegarLoopResult]: For program point L330(lines 330 582) no Hoare annotation was computed. [2020-11-28 03:18:30,874 INFO L274 CegarLoopResult]: For program point L264(lines 264 582) no Hoare annotation was computed. [2020-11-28 03:18:30,874 INFO L274 CegarLoopResult]: For program point L364(lines 364 582) no Hoare annotation was computed. [2020-11-28 03:18:30,874 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,874 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,874 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,874 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,874 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,875 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:18:30,875 INFO L274 CegarLoopResult]: For program point L497(lines 497 582) no Hoare annotation was computed. [2020-11-28 03:18:30,875 INFO L274 CegarLoopResult]: For program point L464(lines 464 582) no Hoare annotation was computed. [2020-11-28 03:18:30,875 INFO L274 CegarLoopResult]: For program point L398(lines 398 582) no Hoare annotation was computed. [2020-11-28 03:18:30,875 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-28 03:18:30,875 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-28 03:18:30,875 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-28 03:18:30,876 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-28 03:18:30,876 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-28 03:18:30,876 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-28 03:18:30,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:18:30 BoogieIcfgContainer [2020-11-28 03:18:30,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:18:30,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:18:30,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:18:30,902 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:18:30,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:09" (3/4) ... [2020-11-28 03:18:30,906 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:18:30,944 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:18:30,946 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:18:30,947 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:18:30,949 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:18:31,145 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b2a42711-c65b-49aa-b601-c566b03e320f/bin/uautomizer/witness.graphml [2020-11-28 03:18:31,151 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:18:31,153 INFO L168 Benchmark]: Toolchain (without parser) took 24371.47 ms. Allocated memory was 90.2 MB in the beginning and 423.6 MB in the end (delta: 333.4 MB). Free memory was 58.1 MB in the beginning and 216.4 MB in the end (delta: -158.2 MB). Peak memory consumption was 174.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,153 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory was 46.9 MB in the beginning and 46.8 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:31,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.47 ms. Allocated memory is still 90.2 MB. Free memory was 58.0 MB in the beginning and 51.5 MB in the end (delta: 6.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,153 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.45 ms. Allocated memory is still 90.2 MB. Free memory was 51.5 MB in the beginning and 43.6 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,154 INFO L168 Benchmark]: Boogie Preprocessor took 124.41 ms. Allocated memory is still 90.2 MB. Free memory was 43.6 MB in the beginning and 38.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,154 INFO L168 Benchmark]: RCFGBuilder took 2053.37 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 38.2 MB in the beginning and 75.2 MB in the end (delta: -37.0 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,154 INFO L168 Benchmark]: TraceAbstraction took 21028.89 ms. Allocated memory was 109.1 MB in the beginning and 423.6 MB in the end (delta: 314.6 MB). Free memory was 75.2 MB in the beginning and 231.0 MB in the end (delta: -155.8 MB). Peak memory consumption was 159.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,155 INFO L168 Benchmark]: Witness Printer took 250.37 ms. Allocated memory is still 423.6 MB. Free memory was 231.0 MB in the beginning and 216.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:31,157 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory was 46.9 MB in the beginning and 46.8 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 797.47 ms. Allocated memory is still 90.2 MB. Free memory was 58.0 MB in the beginning and 51.5 MB in the end (delta: 6.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.45 ms. Allocated memory is still 90.2 MB. Free memory was 51.5 MB in the beginning and 43.6 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 124.41 ms. Allocated memory is still 90.2 MB. Free memory was 43.6 MB in the beginning and 38.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2053.37 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 38.2 MB in the beginning and 75.2 MB in the end (delta: -37.0 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21028.89 ms. Allocated memory was 109.1 MB in the beginning and 423.6 MB in the end (delta: 314.6 MB). Free memory was 75.2 MB in the beginning and 231.0 MB in the end (delta: -155.8 MB). Peak memory consumption was 159.2 MB. Max. memory is 16.1 GB. * Witness Printer took 250.37 ms. Allocated memory is still 423.6 MB. Free memory was 231.0 MB in the beginning and 216.4 MB in the end (delta: 14.7 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: 592]: Loop Invariant Derived loop invariant: ((((((14 == a4 && a10 == 2) && 7 <= a19) && a12 == 0) && a19 <= 9) || (((3 <= a10 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((a10 == 1 && 14 == a4) && 7 <= a19) && a12 == 0)) || ((14 == a4 && a10 == 0) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((14 == a4 && a10 == 2) && 7 <= a19) && a12 == 0) && a19 <= 9) || (((3 <= a10 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((a10 == 1 && 14 == a4) && 7 <= a19) && a12 == 0)) || ((14 == a4 && a10 == 0) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.4s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1127 SDtfs, 1436 SDslu, 68 SDs, 0 SdLazy, 5208 SolverSat, 751 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1078 GetRequests, 1046 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2367occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 2363 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 37 NumberOfFragments, 107 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1314 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 516 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 3906 NumberOfCodeBlocks, 3906 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3889 ConstructedInterpolants, 0 QuantifiedInterpolants, 3936269 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1535 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 3465/3676 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...