./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label47.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_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label47.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/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 69e53a5f887b798320aa40402d512baa70efc113 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:10:50,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:10:50,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:10:50,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:10:50,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:10:50,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:10:50,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:10:50,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:10:50,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:10:50,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:10:50,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:10:50,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:10:50,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:10:50,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:10:50,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:10:50,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:10:50,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:10:50,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:10:50,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:10:50,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:10:50,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:10:50,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:10:50,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:10:50,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:10:50,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:10:50,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:10:50,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:10:50,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:10:50,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:10:50,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:10:50,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:10:50,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:10:50,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:10:50,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:10:50,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:10:50,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:10:50,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:10:50,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:10:50,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:10:50,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:10:50,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:10:50,459 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:10:50,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:10:50,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:10:50,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:10:50,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:10:50,509 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:10:50,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:10:50,509 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:10:50,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:10:50,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:10:50,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:10:50,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:10:50,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:10:50,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:10:50,513 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:10:50,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:10:50,513 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:10:50,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:10:50,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:10:50,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:10:50,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:10:50,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:10:50,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:10:50,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:10:50,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:10:50,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:10:50,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:10:50,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:10:50,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:10:50,517 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:10:50,517 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_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69e53a5f887b798320aa40402d512baa70efc113 [2020-11-28 03:10:50,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:10:50,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:10:50,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:10:50,896 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:10:50,897 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:10:50,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem02_label47.c [2020-11-28 03:10:50,968 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/data/4aad44fec/5dd6674b2cff47f89c1725b6752f6b70/FLAGe8f64db1e [2020-11-28 03:10:51,706 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:10:51,706 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/sv-benchmarks/c/eca-rers2012/Problem02_label47.c [2020-11-28 03:10:51,728 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/data/4aad44fec/5dd6674b2cff47f89c1725b6752f6b70/FLAGe8f64db1e [2020-11-28 03:10:51,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/data/4aad44fec/5dd6674b2cff47f89c1725b6752f6b70 [2020-11-28 03:10:51,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:10:51,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:10:51,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:10:51,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:10:51,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:10:51,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:51" (1/1) ... [2020-11-28 03:10:51,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fbf2b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:51, skipping insertion in model container [2020-11-28 03:10:51,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:51" (1/1) ... [2020-11-28 03:10:51,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:10:52,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:10:52,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:10:52,506 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:10:52,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:10:52,705 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:10:52,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:52 WrapperNode [2020-11-28 03:10:52,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:10:52,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:10:52,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:10:52,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:10:52,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:52" (1/1) ... [2020-11-28 03:10:52,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:52" (1/1) ... [2020-11-28 03:10:52,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:10:52,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:10:52,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:10:52,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:10:52,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:52" (1/1) ... [2020-11-28 03:10:52,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:52" (1/1) ... [2020-11-28 03:10:52,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:52" (1/1) ... [2020-11-28 03:10:52,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:52" (1/1) ... [2020-11-28 03:10:52,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:52" (1/1) ... [2020-11-28 03:10:52,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:52" (1/1) ... [2020-11-28 03:10:52,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:52" (1/1) ... [2020-11-28 03:10:52,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:10:52,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:10:52,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:10:52,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:10:52,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/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 03:10:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:10:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:10:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:10:53,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:10:54,773 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:10:54,774 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:10:54,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:54 BoogieIcfgContainer [2020-11-28 03:10:54,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:10:54,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:10:54,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:10:54,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:10:54,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:10:51" (1/3) ... [2020-11-28 03:10:54,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1692ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:54, skipping insertion in model container [2020-11-28 03:10:54,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:52" (2/3) ... [2020-11-28 03:10:54,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1692ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:54, skipping insertion in model container [2020-11-28 03:10:54,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:54" (3/3) ... [2020-11-28 03:10:54,789 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label47.c [2020-11-28 03:10:54,802 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:10:54,808 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:10:54,822 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:10:54,856 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:10:54,856 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:10:54,857 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:10:54,857 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:10:54,857 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:10:54,857 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:10:54,857 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:10:54,858 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:10:54,882 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-11-28 03:10:54,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-11-28 03:10:54,906 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:54,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:54,907 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:54,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:54,918 INFO L82 PathProgramCache]: Analyzing trace with hash 978014419, now seen corresponding path program 1 times [2020-11-28 03:10:54,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:54,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719625558] [2020-11-28 03:10:54,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:55,529 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 03:10:55,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719625558] [2020-11-28 03:10:55,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:55,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:10:55,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81599676] [2020-11-28 03:10:55,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:55,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:55,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:55,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:55,554 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-11-28 03:10:57,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:57,019 INFO L93 Difference]: Finished difference Result 640 states and 1083 transitions. [2020-11-28 03:10:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:57,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-11-28 03:10:57,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:57,042 INFO L225 Difference]: With dead ends: 640 [2020-11-28 03:10:57,042 INFO L226 Difference]: Without dead ends: 318 [2020-11-28 03:10:57,047 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 03:10:57,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-11-28 03:10:57,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2020-11-28 03:10:57,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-11-28 03:10:57,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2020-11-28 03:10:57,140 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 107 [2020-11-28 03:10:57,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:57,141 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2020-11-28 03:10:57,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:57,143 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2020-11-28 03:10:57,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-11-28 03:10:57,156 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:57,157 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:57,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:10:57,158 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:57,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:57,161 INFO L82 PathProgramCache]: Analyzing trace with hash 532444870, now seen corresponding path program 1 times [2020-11-28 03:10:57,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:57,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947396048] [2020-11-28 03:10:57,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:57,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:57,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947396048] [2020-11-28 03:10:57,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:57,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:10:57,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434624622] [2020-11-28 03:10:57,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:57,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:57,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:57,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:57,329 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand 3 states. [2020-11-28 03:10:58,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:58,030 INFO L93 Difference]: Finished difference Result 910 states and 1341 transitions. [2020-11-28 03:10:58,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:58,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-11-28 03:10:58,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:58,035 INFO L225 Difference]: With dead ends: 910 [2020-11-28 03:10:58,035 INFO L226 Difference]: Without dead ends: 599 [2020-11-28 03:10:58,037 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 03:10:58,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-11-28 03:10:58,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 596. [2020-11-28 03:10:58,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-11-28 03:10:58,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 772 transitions. [2020-11-28 03:10:58,070 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 772 transitions. Word has length 111 [2020-11-28 03:10:58,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:58,070 INFO L481 AbstractCegarLoop]: Abstraction has 596 states and 772 transitions. [2020-11-28 03:10:58,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:58,071 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 772 transitions. [2020-11-28 03:10:58,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-11-28 03:10:58,073 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:58,073 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:58,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:10:58,074 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:58,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:58,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1340637287, now seen corresponding path program 1 times [2020-11-28 03:10:58,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:58,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237260989] [2020-11-28 03:10:58,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:58,176 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:58,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237260989] [2020-11-28 03:10:58,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716035283] [2020-11-28 03:10:58,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/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 03:10:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:58,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:10:58,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:58,429 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:10:58,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:10:58,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-28 03:10:58,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168337953] [2020-11-28 03:10:58,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:58,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:58,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:58,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:10:58,436 INFO L87 Difference]: Start difference. First operand 596 states and 772 transitions. Second operand 3 states. [2020-11-28 03:10:59,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:59,272 INFO L93 Difference]: Finished difference Result 1475 states and 1963 transitions. [2020-11-28 03:10:59,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:59,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-11-28 03:10:59,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:59,283 INFO L225 Difference]: With dead ends: 1475 [2020-11-28 03:10:59,285 INFO L226 Difference]: Without dead ends: 881 [2020-11-28 03:10:59,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:10:59,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-11-28 03:10:59,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 880. [2020-11-28 03:10:59,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-11-28 03:10:59,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1150 transitions. [2020-11-28 03:10:59,327 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1150 transitions. Word has length 116 [2020-11-28 03:10:59,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:59,328 INFO L481 AbstractCegarLoop]: Abstraction has 880 states and 1150 transitions. [2020-11-28 03:10:59,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:59,328 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1150 transitions. [2020-11-28 03:10:59,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-11-28 03:10:59,331 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:59,331 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:59,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-28 03:10:59,547 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:10:59,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:59,547 INFO L82 PathProgramCache]: Analyzing trace with hash 300385264, now seen corresponding path program 1 times [2020-11-28 03:10:59,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:59,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038282820] [2020-11-28 03:10:59,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:59,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038282820] [2020-11-28 03:10:59,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224107787] [2020-11-28 03:10:59,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/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 03:10:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:59,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:10:59,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:10:59,900 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-28 03:10:59,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:10:59,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-28 03:10:59,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413247736] [2020-11-28 03:10:59,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:59,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:59,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:59,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:10:59,905 INFO L87 Difference]: Start difference. First operand 880 states and 1150 transitions. Second operand 3 states. [2020-11-28 03:11:00,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:00,769 INFO L93 Difference]: Finished difference Result 2334 states and 3111 transitions. [2020-11-28 03:11:00,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:00,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-11-28 03:11:00,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:00,786 INFO L225 Difference]: With dead ends: 2334 [2020-11-28 03:11:00,786 INFO L226 Difference]: Without dead ends: 1456 [2020-11-28 03:11:00,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 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 03:11:00,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2020-11-28 03:11:00,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1456. [2020-11-28 03:11:00,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1456 states. [2020-11-28 03:11:00,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1894 transitions. [2020-11-28 03:11:00,835 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1894 transitions. Word has length 116 [2020-11-28 03:11:00,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:00,836 INFO L481 AbstractCegarLoop]: Abstraction has 1456 states and 1894 transitions. [2020-11-28 03:11:00,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:00,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1894 transitions. [2020-11-28 03:11:00,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-11-28 03:11:00,841 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:00,841 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:01,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:01,060 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:01,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:01,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1104795680, now seen corresponding path program 2 times [2020-11-28 03:11:01,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:01,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800988559] [2020-11-28 03:11:01,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 03:11:01,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800988559] [2020-11-28 03:11:01,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508144936] [2020-11-28 03:11:01,171 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/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 03:11:01,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 03:11:01,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:11:01,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:11:01,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:01,365 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-28 03:11:01,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:11:01,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-28 03:11:01,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862085162] [2020-11-28 03:11:01,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:01,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:01,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:01,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:01,368 INFO L87 Difference]: Start difference. First operand 1456 states and 1894 transitions. Second operand 3 states. [2020-11-28 03:11:02,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:02,064 INFO L93 Difference]: Finished difference Result 3476 states and 4597 transitions. [2020-11-28 03:11:02,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:02,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-11-28 03:11:02,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:02,077 INFO L225 Difference]: With dead ends: 3476 [2020-11-28 03:11:02,077 INFO L226 Difference]: Without dead ends: 2022 [2020-11-28 03:11:02,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:02,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2020-11-28 03:11:02,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 2016. [2020-11-28 03:11:02,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2016 states. [2020-11-28 03:11:02,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2664 transitions. [2020-11-28 03:11:02,150 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2664 transitions. Word has length 121 [2020-11-28 03:11:02,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:02,151 INFO L481 AbstractCegarLoop]: Abstraction has 2016 states and 2664 transitions. [2020-11-28 03:11:02,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:02,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2664 transitions. [2020-11-28 03:11:02,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-11-28 03:11:02,156 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:02,157 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:02,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:02,371 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:02,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:02,371 INFO L82 PathProgramCache]: Analyzing trace with hash -2068016150, now seen corresponding path program 1 times [2020-11-28 03:11:02,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:02,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216226541] [2020-11-28 03:11:02,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:02,477 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-28 03:11:02,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216226541] [2020-11-28 03:11:02,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072729984] [2020-11-28 03:11:02,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/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 03:11:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:02,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:11:02,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:02,600 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:11:02,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:11:02,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-28 03:11:02,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758609998] [2020-11-28 03:11:02,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:02,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:02,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:02,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:02,602 INFO L87 Difference]: Start difference. First operand 2016 states and 2664 transitions. Second operand 3 states. [2020-11-28 03:11:03,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:03,283 INFO L93 Difference]: Finished difference Result 4592 states and 6049 transitions. [2020-11-28 03:11:03,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:03,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-11-28 03:11:03,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:03,308 INFO L225 Difference]: With dead ends: 4592 [2020-11-28 03:11:03,308 INFO L226 Difference]: Without dead ends: 2578 [2020-11-28 03:11:03,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 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 03:11:03,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2578 states. [2020-11-28 03:11:03,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2578 to 2576. [2020-11-28 03:11:03,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2576 states. [2020-11-28 03:11:03,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2576 states to 2576 states and 3174 transitions. [2020-11-28 03:11:03,388 INFO L78 Accepts]: Start accepts. Automaton has 2576 states and 3174 transitions. Word has length 125 [2020-11-28 03:11:03,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:03,388 INFO L481 AbstractCegarLoop]: Abstraction has 2576 states and 3174 transitions. [2020-11-28 03:11:03,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:03,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2576 states and 3174 transitions. [2020-11-28 03:11:03,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-11-28 03:11:03,395 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:03,395 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:03,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:03,623 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:03,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:03,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1670544658, now seen corresponding path program 1 times [2020-11-28 03:11:03,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:03,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538374457] [2020-11-28 03:11:03,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-28 03:11:03,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538374457] [2020-11-28 03:11:03,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:03,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:03,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686384029] [2020-11-28 03:11:03,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:03,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:03,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:03,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:03,686 INFO L87 Difference]: Start difference. First operand 2576 states and 3174 transitions. Second operand 3 states. [2020-11-28 03:11:04,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:04,451 INFO L93 Difference]: Finished difference Result 6969 states and 8570 transitions. [2020-11-28 03:11:04,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:04,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-11-28 03:11:04,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:04,476 INFO L225 Difference]: With dead ends: 6969 [2020-11-28 03:11:04,476 INFO L226 Difference]: Without dead ends: 4395 [2020-11-28 03:11:04,480 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 03:11:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4395 states. [2020-11-28 03:11:04,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4395 to 4395. [2020-11-28 03:11:04,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4395 states. [2020-11-28 03:11:04,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4395 states to 4395 states and 5147 transitions. [2020-11-28 03:11:04,584 INFO L78 Accepts]: Start accepts. Automaton has 4395 states and 5147 transitions. Word has length 126 [2020-11-28 03:11:04,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:04,585 INFO L481 AbstractCegarLoop]: Abstraction has 4395 states and 5147 transitions. [2020-11-28 03:11:04,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:04,585 INFO L276 IsEmpty]: Start isEmpty. Operand 4395 states and 5147 transitions. [2020-11-28 03:11:04,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-11-28 03:11:04,592 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:04,592 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:04,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:11:04,593 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:04,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:04,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1045582926, now seen corresponding path program 1 times [2020-11-28 03:11:04,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:04,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739721196] [2020-11-28 03:11:04,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:04,674 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-28 03:11:04,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739721196] [2020-11-28 03:11:04,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514034490] [2020-11-28 03:11:04,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:04,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:11:04,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-11-28 03:11:04,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:11:04,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-28 03:11:04,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900645309] [2020-11-28 03:11:04,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:04,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:04,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:04,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:04,830 INFO L87 Difference]: Start difference. First operand 4395 states and 5147 transitions. Second operand 3 states. [2020-11-28 03:11:05,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:05,166 INFO L93 Difference]: Finished difference Result 7928 states and 9293 transitions. [2020-11-28 03:11:05,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:05,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-11-28 03:11:05,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:05,187 INFO L225 Difference]: With dead ends: 7928 [2020-11-28 03:11:05,187 INFO L226 Difference]: Without dead ends: 3535 [2020-11-28 03:11:05,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:05,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2020-11-28 03:11:05,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 3535. [2020-11-28 03:11:05,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3535 states. [2020-11-28 03:11:05,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3535 states to 3535 states and 4053 transitions. [2020-11-28 03:11:05,298 INFO L78 Accepts]: Start accepts. Automaton has 3535 states and 4053 transitions. Word has length 131 [2020-11-28 03:11:05,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:05,298 INFO L481 AbstractCegarLoop]: Abstraction has 3535 states and 4053 transitions. [2020-11-28 03:11:05,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:05,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3535 states and 4053 transitions. [2020-11-28 03:11:05,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-28 03:11:05,306 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:05,310 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:05,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:05,539 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:05,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:05,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1725177081, now seen corresponding path program 1 times [2020-11-28 03:11:05,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:05,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247236489] [2020-11-28 03:11:05,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:05,744 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 49 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-28 03:11:05,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247236489] [2020-11-28 03:11:05,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196075723] [2020-11-28 03:11:05,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:05,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:11:05,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-28 03:11:05,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:11:05,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 03:11:05,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393605175] [2020-11-28 03:11:05,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:05,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:05,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:05,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:11:05,884 INFO L87 Difference]: Start difference. First operand 3535 states and 4053 transitions. Second operand 3 states. [2020-11-28 03:11:06,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:06,508 INFO L93 Difference]: Finished difference Result 6926 states and 7957 transitions. [2020-11-28 03:11:06,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:06,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-11-28 03:11:06,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:06,528 INFO L225 Difference]: With dead ends: 6926 [2020-11-28 03:11:06,528 INFO L226 Difference]: Without dead ends: 3533 [2020-11-28 03:11:06,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:11:06,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2020-11-28 03:11:06,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 2413. [2020-11-28 03:11:06,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2413 states. [2020-11-28 03:11:06,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 2674 transitions. [2020-11-28 03:11:06,640 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 2674 transitions. Word has length 149 [2020-11-28 03:11:06,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:06,640 INFO L481 AbstractCegarLoop]: Abstraction has 2413 states and 2674 transitions. [2020-11-28 03:11:06,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:06,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 2674 transitions. [2020-11-28 03:11:06,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-11-28 03:11:06,646 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:06,647 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:06,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:06,875 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:06,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:06,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1382797614, now seen corresponding path program 1 times [2020-11-28 03:11:06,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:06,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287987496] [2020-11-28 03:11:06,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:06,949 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-28 03:11:06,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287987496] [2020-11-28 03:11:06,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:06,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:06,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931524711] [2020-11-28 03:11:06,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:06,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:06,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:06,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:06,955 INFO L87 Difference]: Start difference. First operand 2413 states and 2674 transitions. Second operand 3 states. [2020-11-28 03:11:07,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:07,504 INFO L93 Difference]: Finished difference Result 5522 states and 6115 transitions. [2020-11-28 03:11:07,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:07,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2020-11-28 03:11:07,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:07,519 INFO L225 Difference]: With dead ends: 5522 [2020-11-28 03:11:07,519 INFO L226 Difference]: Without dead ends: 3108 [2020-11-28 03:11:07,523 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 03:11:07,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2020-11-28 03:11:07,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 3104. [2020-11-28 03:11:07,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3104 states. [2020-11-28 03:11:07,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 3335 transitions. [2020-11-28 03:11:07,596 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 3335 transitions. Word has length 156 [2020-11-28 03:11:07,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:07,597 INFO L481 AbstractCegarLoop]: Abstraction has 3104 states and 3335 transitions. [2020-11-28 03:11:07,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:07,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 3335 transitions. [2020-11-28 03:11:07,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-11-28 03:11:07,629 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:07,630 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-28 03:11:07,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:11:07,630 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:07,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:07,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1169876819, now seen corresponding path program 1 times [2020-11-28 03:11:07,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:07,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91141013] [2020-11-28 03:11:07,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:07,816 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-28 03:11:07,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91141013] [2020-11-28 03:11:07,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:07,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:07,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305282983] [2020-11-28 03:11:07,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:07,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:07,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:07,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:07,818 INFO L87 Difference]: Start difference. First operand 3104 states and 3335 transitions. Second operand 3 states. [2020-11-28 03:11:08,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:08,406 INFO L93 Difference]: Finished difference Result 6344 states and 6826 transitions. [2020-11-28 03:11:08,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:08,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2020-11-28 03:11:08,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:08,420 INFO L225 Difference]: With dead ends: 6344 [2020-11-28 03:11:08,420 INFO L226 Difference]: Without dead ends: 2677 [2020-11-28 03:11:08,424 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 03:11:08,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2020-11-28 03:11:08,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2677. [2020-11-28 03:11:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2677 states. [2020-11-28 03:11:08,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 2861 transitions. [2020-11-28 03:11:08,483 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 2861 transitions. Word has length 206 [2020-11-28 03:11:08,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:08,483 INFO L481 AbstractCegarLoop]: Abstraction has 2677 states and 2861 transitions. [2020-11-28 03:11:08,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:08,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 2861 transitions. [2020-11-28 03:11:08,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-11-28 03:11:08,493 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:08,493 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:08,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:11:08,494 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:08,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:08,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1583438755, now seen corresponding path program 1 times [2020-11-28 03:11:08,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:08,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333497808] [2020-11-28 03:11:08,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:08,637 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 40 proven. 3 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2020-11-28 03:11:08,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333497808] [2020-11-28 03:11:08,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227754355] [2020-11-28 03:11:08,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:08,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:11:08,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:08,859 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-11-28 03:11:08,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:11:08,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-28 03:11:08,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784690139] [2020-11-28 03:11:08,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:08,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:08,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:08,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:08,863 INFO L87 Difference]: Start difference. First operand 2677 states and 2861 transitions. Second operand 3 states. [2020-11-28 03:11:09,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:09,272 INFO L93 Difference]: Finished difference Result 5350 states and 5722 transitions. [2020-11-28 03:11:09,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:09,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2020-11-28 03:11:09,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:09,273 INFO L225 Difference]: With dead ends: 5350 [2020-11-28 03:11:09,273 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:11:09,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:09,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:11:09,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:11:09,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:11:09,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:11:09,279 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 268 [2020-11-28 03:11:09,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:09,279 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:11:09,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:09,279 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:11:09,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:11:09,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:09,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:11:09,761 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-11-28 03:11:09,968 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-11-28 03:11:09,972 INFO L274 CegarLoopResult]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,972 INFO L274 CegarLoopResult]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,972 INFO L274 CegarLoopResult]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,972 INFO L274 CegarLoopResult]: For program point L301(lines 301 423) no Hoare annotation was computed. [2020-11-28 03:11:09,972 INFO L274 CegarLoopResult]: For program point L235(lines 235 423) no Hoare annotation was computed. [2020-11-28 03:11:09,972 INFO L274 CegarLoopResult]: For program point L169(lines 169 423) no Hoare annotation was computed. [2020-11-28 03:11:09,972 INFO L274 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-11-28 03:11:09,972 INFO L274 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L303(lines 303 423) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L105(lines 105 423) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L40(lines 40 423) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L371(lines 371 423) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,973 INFO L274 CegarLoopResult]: For program point L307(lines 307 423) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L175(lines 175 423) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L109(lines 109 423) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L308(lines 308 317) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L242(lines 242 423) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L45(lines 45 423) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L244(lines 244 423) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L575(line 575) no Hoare annotation was computed. [2020-11-28 03:11:09,974 INFO L274 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L179(lines 179 423) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L378(lines 378 423) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L48(lines 48 423) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L247(lines 247 423) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L578(line 578) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L248(lines 248 256) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L116(lines 116 423) no Hoare annotation was computed. [2020-11-28 03:11:09,975 INFO L274 CegarLoopResult]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L52(lines 52 423) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L581(line 581) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L185(lines 185 423) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L385(lines 385 423) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L319(lines 319 423) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L584(line 584) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-11-28 03:11:09,976 INFO L274 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L189(lines 189 423) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L123(lines 123 423) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L57(lines 57 423) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L388(lines 388 423) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L390(lines 390 423) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L324(lines 324 423) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L258(lines 258 423) no Hoare annotation was computed. [2020-11-28 03:11:09,977 INFO L274 CegarLoopResult]: For program point L60(lines 60 423) no Hoare annotation was computed. [2020-11-28 03:11:09,978 INFO L274 CegarLoopResult]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,978 INFO L274 CegarLoopResult]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,978 INFO L274 CegarLoopResult]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,978 INFO L274 CegarLoopResult]: For program point L391(lines 391 397) no Hoare annotation was computed. [2020-11-28 03:11:09,978 INFO L274 CegarLoopResult]: For program point L325(lines 325 336) no Hoare annotation was computed. [2020-11-28 03:11:09,978 INFO L274 CegarLoopResult]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2020-11-28 03:11:09,978 INFO L274 CegarLoopResult]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2020-11-28 03:11:09,978 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-11-28 03:11:09,978 INFO L274 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-11-28 03:11:09,981 INFO L274 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-11-28 03:11:09,981 INFO L274 CegarLoopResult]: For program point L195(lines 195 423) no Hoare annotation was computed. [2020-11-28 03:11:09,981 INFO L274 CegarLoopResult]: For program point L129(lines 129 423) no Hoare annotation was computed. [2020-11-28 03:11:09,981 INFO L274 CegarLoopResult]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,981 INFO L274 CegarLoopResult]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,981 INFO L274 CegarLoopResult]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,981 INFO L274 CegarLoopResult]: For program point L64(lines 64 423) no Hoare annotation was computed. [2020-11-28 03:11:09,982 INFO L274 CegarLoopResult]: For program point L593(line 593) no Hoare annotation was computed. [2020-11-28 03:11:09,982 INFO L274 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-11-28 03:11:09,982 INFO L274 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-11-28 03:11:09,982 INFO L274 CegarLoopResult]: For program point L263(lines 263 423) no Hoare annotation was computed. [2020-11-28 03:11:09,982 INFO L274 CegarLoopResult]: For program point L197(lines 197 423) no Hoare annotation was computed. [2020-11-28 03:11:09,982 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:11:09,982 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 03:11:09,983 INFO L274 CegarLoopResult]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,983 INFO L274 CegarLoopResult]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,983 INFO L274 CegarLoopResult]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,983 INFO L274 CegarLoopResult]: For program point L199(lines 199 423) no Hoare annotation was computed. [2020-11-28 03:11:09,983 INFO L274 CegarLoopResult]: For program point L133(lines 133 423) no Hoare annotation was computed. [2020-11-28 03:11:09,983 INFO L274 CegarLoopResult]: For program point L596(line 596) no Hoare annotation was computed. [2020-11-28 03:11:09,983 INFO L274 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-11-28 03:11:09,983 INFO L274 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-11-28 03:11:09,984 INFO L274 CegarLoopResult]: For program point L399(lines 399 423) no Hoare annotation was computed. [2020-11-28 03:11:09,984 INFO L274 CegarLoopResult]: For program point L201(lines 201 423) no Hoare annotation was computed. [2020-11-28 03:11:09,984 INFO L274 CegarLoopResult]: For program point L69(lines 69 423) no Hoare annotation was computed. [2020-11-28 03:11:09,984 INFO L274 CegarLoopResult]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,984 INFO L274 CegarLoopResult]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,985 INFO L274 CegarLoopResult]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,985 INFO L274 CegarLoopResult]: For program point L599(line 599) no Hoare annotation was computed. [2020-11-28 03:11:09,985 INFO L274 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-11-28 03:11:09,985 INFO L274 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-11-28 03:11:09,985 INFO L274 CegarLoopResult]: For program point L269(lines 269 423) no Hoare annotation was computed. [2020-11-28 03:11:09,985 INFO L274 CegarLoopResult]: For program point L204(lines 204 423) no Hoare annotation was computed. [2020-11-28 03:11:09,985 INFO L274 CegarLoopResult]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,985 INFO L274 CegarLoopResult]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,985 INFO L274 CegarLoopResult]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,986 INFO L274 CegarLoopResult]: For program point L271(lines 271 423) no Hoare annotation was computed. [2020-11-28 03:11:09,986 INFO L274 CegarLoopResult]: For program point L602(line 602) no Hoare annotation was computed. [2020-11-28 03:11:09,986 INFO L274 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-11-28 03:11:09,986 INFO L274 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-11-28 03:11:09,986 INFO L274 CegarLoopResult]: For program point L404(lines 404 423) no Hoare annotation was computed. [2020-11-28 03:11:09,986 INFO L274 CegarLoopResult]: For program point L338(lines 338 423) no Hoare annotation was computed. [2020-11-28 03:11:09,986 INFO L274 CegarLoopResult]: For program point L272(lines 272 284) no Hoare annotation was computed. [2020-11-28 03:11:09,987 INFO L274 CegarLoopResult]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2020-11-28 03:11:09,987 INFO L274 CegarLoopResult]: For program point L140(lines 140 423) no Hoare annotation was computed. [2020-11-28 03:11:09,987 INFO L274 CegarLoopResult]: For program point L75(lines 75 423) no Hoare annotation was computed. [2020-11-28 03:11:09,987 INFO L274 CegarLoopResult]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2020-11-28 03:11:09,987 INFO L274 CegarLoopResult]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,987 INFO L274 CegarLoopResult]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,987 INFO L274 CegarLoopResult]: For program point L208(lines 208 423) no Hoare annotation was computed. [2020-11-28 03:11:09,987 INFO L274 CegarLoopResult]: For program point L605(line 605) no Hoare annotation was computed. [2020-11-28 03:11:09,988 INFO L274 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-11-28 03:11:09,988 INFO L274 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-11-28 03:11:09,988 INFO L274 CegarLoopResult]: For program point L341(lines 341 423) no Hoare annotation was computed. [2020-11-28 03:11:09,988 INFO L274 CegarLoopResult]: For program point L408(lines 408 423) no Hoare annotation was computed. [2020-11-28 03:11:09,988 INFO L274 CegarLoopResult]: For program point L342(lines 342 345) no Hoare annotation was computed. [2020-11-28 03:11:09,988 INFO L274 CegarLoopResult]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2020-11-28 03:11:09,988 INFO L274 CegarLoopResult]: For program point L144(lines 144 423) no Hoare annotation was computed. [2020-11-28 03:11:09,988 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 03:11:09,990 INFO L270 CegarLoopResult]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse3 (= ~a19~0 1)) (.cse1 (= ~a25~0 0)) (.cse6 (<= ~a28~0 7)) (.cse7 (<= ~a11~0 0)) (.cse0 (<= ~a19~0 0)) (.cse5 (= ~a25~0 1)) (.cse4 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1 (<= ~a17~0 7) .cse2) (and (<= 9 ~a28~0) .cse3 .cse4 .cse2) (and .cse3 .cse5 .cse6 .cse4) (and .cse7 .cse3 .cse5 .cse4) (and .cse0 (<= ~a28~0 9) .cse4) (and (= ~a25~0 ~a11~0) .cse3 .cse1 .cse6 .cse4) (and .cse7 .cse0 .cse5 .cse4 .cse2))) [2020-11-28 03:11:09,990 INFO L274 CegarLoopResult]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,990 INFO L274 CegarLoopResult]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,990 INFO L274 CegarLoopResult]: For program point L79(lines 79 423) no Hoare annotation was computed. [2020-11-28 03:11:09,990 INFO L274 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-11-28 03:11:09,990 INFO L274 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-11-28 03:11:09,990 INFO L274 CegarLoopResult]: For program point L212(lines 212 423) no Hoare annotation was computed. [2020-11-28 03:11:09,991 INFO L274 CegarLoopResult]: For program point L213(lines 213 220) no Hoare annotation was computed. [2020-11-28 03:11:09,991 INFO L274 CegarLoopResult]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2020-11-28 03:11:09,991 INFO L277 CegarLoopResult]: At program point L610(lines 610 627) the Hoare annotation is: true [2020-11-28 03:11:09,991 INFO L274 CegarLoopResult]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,991 INFO L274 CegarLoopResult]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,991 INFO L274 CegarLoopResult]: For program point L412(lines 412 423) no Hoare annotation was computed. [2020-11-28 03:11:09,991 INFO L274 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-11-28 03:11:09,991 INFO L274 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-11-28 03:11:09,992 INFO L274 CegarLoopResult]: For program point L347(lines 347 423) no Hoare annotation was computed. [2020-11-28 03:11:09,992 INFO L274 CegarLoopResult]: For program point L149(lines 149 423) no Hoare annotation was computed. [2020-11-28 03:11:09,992 INFO L274 CegarLoopResult]: For program point L414(lines 414 423) no Hoare annotation was computed. [2020-11-28 03:11:09,992 INFO L274 CegarLoopResult]: For program point L348(lines 348 357) no Hoare annotation was computed. [2020-11-28 03:11:09,992 INFO L274 CegarLoopResult]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2020-11-28 03:11:09,992 INFO L274 CegarLoopResult]: For program point L84(lines 84 423) no Hoare annotation was computed. [2020-11-28 03:11:09,992 INFO L274 CegarLoopResult]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,993 INFO L274 CegarLoopResult]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,993 INFO L274 CegarLoopResult]: For program point L85(lines 85 90) no Hoare annotation was computed. [2020-11-28 03:11:09,993 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2020-11-28 03:11:09,993 INFO L274 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-11-28 03:11:09,993 INFO L274 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-11-28 03:11:09,993 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:11:09,993 INFO L274 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-11-28 03:11:09,993 INFO L274 CegarLoopResult]: For program point L153(lines 153 423) no Hoare annotation was computed. [2020-11-28 03:11:09,995 INFO L270 CegarLoopResult]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse3 (= ~a19~0 1)) (.cse1 (= ~a25~0 0)) (.cse6 (<= ~a28~0 7)) (.cse7 (<= ~a11~0 0)) (.cse0 (<= ~a19~0 0)) (.cse5 (= ~a25~0 1)) (.cse4 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1 (<= ~a17~0 7) .cse2) (and (<= 9 ~a28~0) .cse3 .cse4 .cse2) (and .cse3 .cse5 .cse6 .cse4) (and .cse7 .cse3 .cse5 .cse4) (and .cse0 (<= ~a28~0 9) .cse4) (and (= ~a25~0 ~a11~0) .cse3 .cse1 .cse6 .cse4) (and .cse7 .cse0 .cse5 .cse4 .cse2))) [2020-11-28 03:11:09,995 INFO L274 CegarLoopResult]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,995 INFO L274 CegarLoopResult]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,996 INFO L274 CegarLoopResult]: For program point L286(lines 286 423) no Hoare annotation was computed. [2020-11-28 03:11:09,996 INFO L274 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-11-28 03:11:09,996 INFO L274 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-11-28 03:11:09,996 INFO L274 CegarLoopResult]: For program point L419(lines 419 423) no Hoare annotation was computed. [2020-11-28 03:11:09,996 INFO L274 CegarLoopResult]: For program point L222(lines 222 423) no Hoare annotation was computed. [2020-11-28 03:11:09,996 INFO L274 CegarLoopResult]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,996 INFO L274 CegarLoopResult]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,996 INFO L274 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-11-28 03:11:09,997 INFO L274 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-11-28 03:11:09,997 INFO L274 CegarLoopResult]: For program point L290(lines 290 423) no Hoare annotation was computed. [2020-11-28 03:11:09,997 INFO L274 CegarLoopResult]: For program point L158(lines 158 423) no Hoare annotation was computed. [2020-11-28 03:11:09,997 INFO L274 CegarLoopResult]: For program point L92(lines 92 423) no Hoare annotation was computed. [2020-11-28 03:11:09,997 INFO L274 CegarLoopResult]: For program point L621(line 621) no Hoare annotation was computed. [2020-11-28 03:11:09,997 INFO L274 CegarLoopResult]: For program point L225(lines 225 423) no Hoare annotation was computed. [2020-11-28 03:11:09,997 INFO L274 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-11-28 03:11:09,998 INFO L274 CegarLoopResult]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2020-11-28 03:11:09,998 INFO L274 CegarLoopResult]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,998 INFO L274 CegarLoopResult]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,998 INFO L274 CegarLoopResult]: For program point L424(lines 424 426) no Hoare annotation was computed. [2020-11-28 03:11:09,998 INFO L274 CegarLoopResult]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,998 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:11:09,998 INFO L274 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-11-28 03:11:09,998 INFO L274 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-11-28 03:11:09,999 INFO L274 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-11-28 03:11:09,999 INFO L274 CegarLoopResult]: For program point L359(lines 359 423) no Hoare annotation was computed. [2020-11-28 03:11:09,999 INFO L274 CegarLoopResult]: For program point L293(lines 293 423) no Hoare annotation was computed. [2020-11-28 03:11:09,999 INFO L274 CegarLoopResult]: For program point L228(lines 228 423) no Hoare annotation was computed. [2020-11-28 03:11:09,999 INFO L274 CegarLoopResult]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,999 INFO L274 CegarLoopResult]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,999 INFO L274 CegarLoopResult]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:09,999 INFO L274 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-11-28 03:11:10,000 INFO L274 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-11-28 03:11:10,000 INFO L274 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-11-28 03:11:10,000 INFO L274 CegarLoopResult]: For program point L296(lines 296 423) no Hoare annotation was computed. [2020-11-28 03:11:10,000 INFO L274 CegarLoopResult]: For program point L164(lines 164 423) no Hoare annotation was computed. [2020-11-28 03:11:10,000 INFO L274 CegarLoopResult]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:10,000 INFO L274 CegarLoopResult]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:10,000 INFO L274 CegarLoopResult]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2020-11-28 03:11:10,001 INFO L274 CegarLoopResult]: For program point L364(lines 364 423) no Hoare annotation was computed. [2020-11-28 03:11:10,001 INFO L274 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-11-28 03:11:10,001 INFO L274 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-11-28 03:11:10,001 INFO L274 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-11-28 03:11:10,001 INFO L274 CegarLoopResult]: For program point L233(lines 233 423) no Hoare annotation was computed. [2020-11-28 03:11:10,001 INFO L274 CegarLoopResult]: For program point L101(lines 101 423) no Hoare annotation was computed. [2020-11-28 03:11:10,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:11:10 BoogieIcfgContainer [2020-11-28 03:11:10,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:11:10,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:11:10,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:11:10,055 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:11:10,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:54" (3/4) ... [2020-11-28 03:11:10,059 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:11:10,093 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:11:10,095 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:11:10,096 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:11:10,098 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:11:10,249 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0752f0b0-996a-46fd-bcf0-6b2d521ae18d/bin/uautomizer/witness.graphml [2020-11-28 03:11:10,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:11:10,250 INFO L168 Benchmark]: Toolchain (without parser) took 18307.57 ms. Allocated memory was 77.6 MB in the beginning and 429.9 MB in the end (delta: 352.3 MB). Free memory was 46.3 MB in the beginning and 325.6 MB in the end (delta: -279.3 MB). Peak memory consumption was 74.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:10,250 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 77.6 MB. Free memory is still 42.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:10,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.83 ms. Allocated memory was 77.6 MB in the beginning and 109.1 MB in the end (delta: 31.5 MB). Free memory was 46.1 MB in the beginning and 70.1 MB in the end (delta: -24.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:10,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 136.14 ms. Allocated memory is still 109.1 MB. Free memory was 70.1 MB in the beginning and 64.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:10,251 INFO L168 Benchmark]: Boogie Preprocessor took 108.87 ms. Allocated memory is still 109.1 MB. Free memory was 64.5 MB in the beginning and 60.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:10,252 INFO L168 Benchmark]: RCFGBuilder took 1822.63 ms. Allocated memory is still 109.1 MB. Free memory was 60.3 MB in the beginning and 58.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:10,252 INFO L168 Benchmark]: TraceAbstraction took 15273.03 ms. Allocated memory was 109.1 MB in the beginning and 429.9 MB in the end (delta: 320.9 MB). Free memory was 58.2 MB in the beginning and 340.2 MB in the end (delta: -282.1 MB). Peak memory consumption was 235.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:10,253 INFO L168 Benchmark]: Witness Printer took 194.70 ms. Allocated memory is still 429.9 MB. Free memory was 340.2 MB in the beginning and 325.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:10,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 77.6 MB. Free memory is still 42.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 760.83 ms. Allocated memory was 77.6 MB in the beginning and 109.1 MB in the end (delta: 31.5 MB). Free memory was 46.1 MB in the beginning and 70.1 MB in the end (delta: -24.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 136.14 ms. Allocated memory is still 109.1 MB. Free memory was 70.1 MB in the beginning and 64.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.87 ms. Allocated memory is still 109.1 MB. Free memory was 64.5 MB in the beginning and 60.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1822.63 ms. Allocated memory is still 109.1 MB. Free memory was 60.3 MB in the beginning and 58.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15273.03 ms. Allocated memory was 109.1 MB in the beginning and 429.9 MB in the end (delta: 320.9 MB). Free memory was 58.2 MB in the beginning and 340.2 MB in the end (delta: -282.1 MB). Peak memory consumption was 235.6 MB. Max. memory is 16.1 GB. * Witness Printer took 194.70 ms. Allocated memory is still 429.9 MB. Free memory was 340.2 MB in the beginning and 325.6 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: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: ((((((((a19 <= 0 && a25 == 0) && a17 <= 7) && a28 <= 10) || (((9 <= a28 && a19 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8)) || (((a11 <= 0 && a19 == 1) && a25 == 1) && a17 <= 8)) || ((a19 <= 0 && a28 <= 9) && a17 <= 8)) || ((((a25 == a11 && a19 == 1) && a25 == 0) && a28 <= 7) && a17 <= 8)) || ((((a11 <= 0 && a19 <= 0) && a25 == 1) && a17 <= 8) && a28 <= 10) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((a19 <= 0 && a25 == 0) && a17 <= 7) && a28 <= 10) || (((9 <= a28 && a19 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8)) || (((a11 <= 0 && a19 == 1) && a25 == 1) && a17 <= 8)) || ((a19 <= 0 && a28 <= 9) && a17 <= 8)) || ((((a25 == a11 && a19 == 1) && a25 == 0) && a28 <= 7) && a17 <= 8)) || ((((a11 <= 0 && a19 <= 0) && a25 == 1) && a17 <= 8) && a28 <= 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.6s, OverallIterations: 12, TraceHistogramMax: 7, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1381 SDtfs, 1451 SDslu, 166 SDs, 0 SdLazy, 4206 SolverSat, 697 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1053 GetRequests, 1026 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4395occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 1141 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 57 NumberOfFragments, 191 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1326 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 162 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2758 NumberOfCodeBlocks, 2758 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2739 ConstructedInterpolants, 0 QuantifiedInterpolants, 761678 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2188 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 1229/1260 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...