./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label56.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_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label56.c -s /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bdcfaafc90ac15119dce6cd8ad2b55faf8fffd21 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:40:04,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:40:04,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:40:04,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:40:04,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:40:04,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:40:04,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:40:04,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:40:04,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:40:04,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:40:04,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:40:04,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:40:04,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:40:04,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:40:04,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:40:04,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:40:04,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:40:04,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:40:04,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:40:04,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:40:04,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:40:04,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:40:04,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:40:04,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:40:04,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:40:04,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:40:04,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:40:04,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:40:04,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:40:04,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:40:04,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:40:04,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:40:04,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:40:04,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:40:04,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:40:04,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:40:04,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:40:04,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:40:04,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:40:04,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:40:04,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:40:04,552 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 03:40:04,578 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:40:04,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:40:04,580 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:40:04,580 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:40:04,581 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:40:04,581 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:40:04,581 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:40:04,581 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:40:04,581 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:40:04,582 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:40:04,582 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:40:04,582 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:40:04,583 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:40:04,583 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:40:04,583 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:40:04,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:40:04,584 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:40:04,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:40:04,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:40:04,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:40:04,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:40:04,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:40:04,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:40:04,586 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:40:04,586 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:40:04,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:40:04,587 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:40:04,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:40:04,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:40:04,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:40:04,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:40:04,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:40:04,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:40:04,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:40:04,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:40:04,589 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:40:04,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:40:04,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:40:04,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:40:04,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:40:04,590 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdcfaafc90ac15119dce6cd8ad2b55faf8fffd21 [2020-11-30 03:40:04,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:40:04,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:40:04,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:40:04,923 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:40:04,931 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:40:04,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label56.c [2020-11-30 03:40:05,022 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/data/7714fe5b5/c5bfa39d1ece4fd0bd0a170b5c40facd/FLAGde3e78fab [2020-11-30 03:40:05,630 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:40:05,631 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/sv-benchmarks/c/eca-rers2012/Problem02_label56.c [2020-11-30 03:40:05,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/data/7714fe5b5/c5bfa39d1ece4fd0bd0a170b5c40facd/FLAGde3e78fab [2020-11-30 03:40:05,892 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/data/7714fe5b5/c5bfa39d1ece4fd0bd0a170b5c40facd [2020-11-30 03:40:05,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:40:05,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:40:05,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:40:05,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:40:05,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:40:05,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:40:05" (1/1) ... [2020-11-30 03:40:05,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4aff27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:05, skipping insertion in model container [2020-11-30 03:40:05,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:40:05" (1/1) ... [2020-11-30 03:40:05,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:40:06,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:40:06,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:40:06,534 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:40:06,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:40:06,685 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:40:06,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:06 WrapperNode [2020-11-30 03:40:06,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:40:06,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:40:06,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:40:06,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:40:06,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:06" (1/1) ... [2020-11-30 03:40:06,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:06" (1/1) ... [2020-11-30 03:40:06,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:40:06,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:40:06,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:40:06,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:40:06,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:06" (1/1) ... [2020-11-30 03:40:06,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:06" (1/1) ... [2020-11-30 03:40:06,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:06" (1/1) ... [2020-11-30 03:40:06,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:06" (1/1) ... [2020-11-30 03:40:06,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:06" (1/1) ... [2020-11-30 03:40:06,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:06" (1/1) ... [2020-11-30 03:40:06,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:06" (1/1) ... [2020-11-30 03:40:06,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:40:06,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:40:06,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:40:06,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:40:06,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/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 [2020-11-30 03:40:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:40:07,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:40:07,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:40:07,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:40:09,537 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:40:09,538 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 03:40:09,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:40:09 BoogieIcfgContainer [2020-11-30 03:40:09,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:40:09,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:40:09,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:40:09,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:40:09,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:40:05" (1/3) ... [2020-11-30 03:40:09,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7b9fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:40:09, skipping insertion in model container [2020-11-30 03:40:09,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:06" (2/3) ... [2020-11-30 03:40:09,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7b9fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:40:09, skipping insertion in model container [2020-11-30 03:40:09,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:40:09" (3/3) ... [2020-11-30 03:40:09,551 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label56.c [2020-11-30 03:40:09,563 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:40:09,569 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:40:09,583 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:40:09,612 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:40:09,613 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:40:09,613 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:40:09,613 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:40:09,613 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:40:09,613 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:40:09,614 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:40:09,614 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:40:09,631 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-11-30 03:40:09,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-11-30 03:40:09,641 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:40:09,642 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] [2020-11-30 03:40:09,643 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:40:09,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:40:09,650 INFO L82 PathProgramCache]: Analyzing trace with hash -216540400, now seen corresponding path program 1 times [2020-11-30 03:40:09,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:40:09,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376167329] [2020-11-30 03:40:09,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:40:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:40:10,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:40:10,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376167329] [2020-11-30 03:40:10,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:40:10,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:40:10,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924491472] [2020-11-30 03:40:10,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:40:10,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:40:10,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:40:10,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:40:10,156 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2020-11-30 03:40:11,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:40:11,034 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2020-11-30 03:40:11,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:40:11,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-11-30 03:40:11,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:40:11,065 INFO L225 Difference]: With dead ends: 251 [2020-11-30 03:40:11,076 INFO L226 Difference]: Without dead ends: 163 [2020-11-30 03:40:11,080 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 [2020-11-30 03:40:11,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-11-30 03:40:11,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-11-30 03:40:11,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-30 03:40:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 253 transitions. [2020-11-30 03:40:11,170 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 253 transitions. Word has length 80 [2020-11-30 03:40:11,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:40:11,173 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 253 transitions. [2020-11-30 03:40:11,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:40:11,173 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 253 transitions. [2020-11-30 03:40:11,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-11-30 03:40:11,182 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:40:11,182 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:40:11,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:40:11,183 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:40:11,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:40:11,186 INFO L82 PathProgramCache]: Analyzing trace with hash -125429269, now seen corresponding path program 1 times [2020-11-30 03:40:11,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:40:11,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092387322] [2020-11-30 03:40:11,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:40:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:40:11,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:40:11,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092387322] [2020-11-30 03:40:11,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:40:11,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 03:40:11,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392104417] [2020-11-30 03:40:11,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:40:11,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:40:11,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:40:11,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:40:11,414 INFO L87 Difference]: Start difference. First operand 163 states and 253 transitions. Second operand 3 states. [2020-11-30 03:40:11,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:40:11,998 INFO L93 Difference]: Finished difference Result 485 states and 756 transitions. [2020-11-30 03:40:11,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:40:11,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-11-30 03:40:11,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:40:12,003 INFO L225 Difference]: With dead ends: 485 [2020-11-30 03:40:12,003 INFO L226 Difference]: Without dead ends: 323 [2020-11-30 03:40:12,005 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 [2020-11-30 03:40:12,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-11-30 03:40:12,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2020-11-30 03:40:12,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-11-30 03:40:12,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 483 transitions. [2020-11-30 03:40:12,033 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 483 transitions. Word has length 85 [2020-11-30 03:40:12,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:40:12,049 INFO L481 AbstractCegarLoop]: Abstraction has 323 states and 483 transitions. [2020-11-30 03:40:12,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:40:12,050 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 483 transitions. [2020-11-30 03:40:12,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-11-30 03:40:12,057 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:40:12,058 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] [2020-11-30 03:40:12,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 03:40:12,059 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:40:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:40:12,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1654434274, now seen corresponding path program 1 times [2020-11-30 03:40:12,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:40:12,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247724232] [2020-11-30 03:40:12,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:40:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:40:12,194 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:40:12,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247724232] [2020-11-30 03:40:12,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576061104] [2020-11-30 03:40:12,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/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 [2020-11-30 03:40:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:40:12,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 03:40:12,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:40:12,435 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 03:40:12,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:40:12,468 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 03:40:12,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-11-30 03:40:12,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 5 [2020-11-30 03:40:12,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493233730] [2020-11-30 03:40:12,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:40:12,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:40:12,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:40:12,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:40:12,471 INFO L87 Difference]: Start difference. First operand 323 states and 483 transitions. Second operand 3 states. [2020-11-30 03:40:13,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:40:13,242 INFO L93 Difference]: Finished difference Result 805 states and 1261 transitions. [2020-11-30 03:40:13,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:40:13,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-11-30 03:40:13,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:40:13,247 INFO L225 Difference]: With dead ends: 805 [2020-11-30 03:40:13,248 INFO L226 Difference]: Without dead ends: 483 [2020-11-30 03:40:13,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:40:13,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-11-30 03:40:13,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-11-30 03:40:13,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-11-30 03:40:13,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 728 transitions. [2020-11-30 03:40:13,296 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 728 transitions. Word has length 89 [2020-11-30 03:40:13,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:40:13,297 INFO L481 AbstractCegarLoop]: Abstraction has 483 states and 728 transitions. [2020-11-30 03:40:13,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:40:13,297 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 728 transitions. [2020-11-30 03:40:13,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-11-30 03:40:13,310 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:40:13,310 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-11-30 03:40:13,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-30 03:40:13,512 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:40:13,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:40:13,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1373214216, now seen corresponding path program 1 times [2020-11-30 03:40:13,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:40:13,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838861021] [2020-11-30 03:40:13,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:40:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:40:13,630 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:40:13,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838861021] [2020-11-30 03:40:13,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:40:13,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 03:40:13,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900250247] [2020-11-30 03:40:13,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:40:13,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:40:13,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:40:13,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:40:13,636 INFO L87 Difference]: Start difference. First operand 483 states and 728 transitions. Second operand 3 states. [2020-11-30 03:40:14,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:40:14,299 INFO L93 Difference]: Finished difference Result 1125 states and 1751 transitions. [2020-11-30 03:40:14,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:40:14,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-11-30 03:40:14,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:40:14,305 INFO L225 Difference]: With dead ends: 1125 [2020-11-30 03:40:14,305 INFO L226 Difference]: Without dead ends: 643 [2020-11-30 03:40:14,306 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 [2020-11-30 03:40:14,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2020-11-30 03:40:14,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2020-11-30 03:40:14,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-11-30 03:40:14,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1004 transitions. [2020-11-30 03:40:14,350 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1004 transitions. Word has length 103 [2020-11-30 03:40:14,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:40:14,352 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 1004 transitions. [2020-11-30 03:40:14,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:40:14,352 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1004 transitions. [2020-11-30 03:40:14,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-30 03:40:14,356 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:40:14,358 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-11-30 03:40:14,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 03:40:14,358 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:40:14,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:40:14,360 INFO L82 PathProgramCache]: Analyzing trace with hash -37636531, now seen corresponding path program 1 times [2020-11-30 03:40:14,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:40:14,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717394046] [2020-11-30 03:40:14,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:40:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:40:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 03:40:14,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717394046] [2020-11-30 03:40:14,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:40:14,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:40:14,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988915213] [2020-11-30 03:40:14,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:40:14,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:40:14,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:40:14,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:40:14,483 INFO L87 Difference]: Start difference. First operand 643 states and 1004 transitions. Second operand 3 states. [2020-11-30 03:40:15,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:40:15,109 INFO L93 Difference]: Finished difference Result 1845 states and 2853 transitions. [2020-11-30 03:40:15,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:40:15,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-30 03:40:15,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:40:15,119 INFO L225 Difference]: With dead ends: 1845 [2020-11-30 03:40:15,119 INFO L226 Difference]: Without dead ends: 1203 [2020-11-30 03:40:15,122 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 [2020-11-30 03:40:15,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2020-11-30 03:40:15,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1203. [2020-11-30 03:40:15,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1203 states. [2020-11-30 03:40:15,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1708 transitions. [2020-11-30 03:40:15,165 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1708 transitions. Word has length 105 [2020-11-30 03:40:15,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:40:15,166 INFO L481 AbstractCegarLoop]: Abstraction has 1203 states and 1708 transitions. [2020-11-30 03:40:15,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:40:15,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1708 transitions. [2020-11-30 03:40:15,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-11-30 03:40:15,170 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:40:15,171 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:40:15,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 03:40:15,171 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:40:15,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:40:15,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1281005266, now seen corresponding path program 1 times [2020-11-30 03:40:15,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:40:15,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270857397] [2020-11-30 03:40:15,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:40:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:40:15,474 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:40:15,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270857397] [2020-11-30 03:40:15,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182474754] [2020-11-30 03:40:15,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/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 [2020-11-30 03:40:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:40:15,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 03:40:15,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:40:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-30 03:40:15,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:40:15,697 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-30 03:40:15,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-11-30 03:40:15,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 6 [2020-11-30 03:40:15,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606210983] [2020-11-30 03:40:15,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:40:15,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:40:15,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:40:15,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:40:15,700 INFO L87 Difference]: Start difference. First operand 1203 states and 1708 transitions. Second operand 3 states. [2020-11-30 03:40:16,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:40:16,296 INFO L93 Difference]: Finished difference Result 2963 states and 4199 transitions. [2020-11-30 03:40:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:40:16,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-11-30 03:40:16,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:40:16,297 INFO L225 Difference]: With dead ends: 2963 [2020-11-30 03:40:16,298 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 03:40:16,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:40:16,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 03:40:16,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 03:40:16,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 03:40:16,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 03:40:16,303 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 107 [2020-11-30 03:40:16,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:40:16,303 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 03:40:16,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:40:16,303 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 03:40:16,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 03:40:16,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 03:40:16,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 03:40:16,735 INFO L274 CegarLoopResult]: For program point L301(lines 301 423) no Hoare annotation was computed. [2020-11-30 03:40:16,735 INFO L274 CegarLoopResult]: For program point L235(lines 235 423) no Hoare annotation was computed. [2020-11-30 03:40:16,735 INFO L274 CegarLoopResult]: For program point L169(lines 169 423) no Hoare annotation was computed. [2020-11-30 03:40:16,735 INFO L274 CegarLoopResult]: For program point L303(lines 303 423) no Hoare annotation was computed. [2020-11-30 03:40:16,735 INFO L274 CegarLoopResult]: For program point L105(lines 105 423) no Hoare annotation was computed. [2020-11-30 03:40:16,735 INFO L274 CegarLoopResult]: For program point L40(lines 40 423) no Hoare annotation was computed. [2020-11-30 03:40:16,735 INFO L274 CegarLoopResult]: For program point L371(lines 371 423) no Hoare annotation was computed. [2020-11-30 03:40:16,735 INFO L274 CegarLoopResult]: For program point L307(lines 307 423) no Hoare annotation was computed. [2020-11-30 03:40:16,736 INFO L274 CegarLoopResult]: For program point L175(lines 175 423) no Hoare annotation was computed. [2020-11-30 03:40:16,736 INFO L274 CegarLoopResult]: For program point L109(lines 109 423) no Hoare annotation was computed. [2020-11-30 03:40:16,736 INFO L274 CegarLoopResult]: For program point L242(lines 242 423) no Hoare annotation was computed. [2020-11-30 03:40:16,736 INFO L274 CegarLoopResult]: For program point L45(lines 45 423) no Hoare annotation was computed. [2020-11-30 03:40:16,736 INFO L274 CegarLoopResult]: For program point L244(lines 244 423) no Hoare annotation was computed. [2020-11-30 03:40:16,736 INFO L274 CegarLoopResult]: For program point L179(lines 179 423) no Hoare annotation was computed. [2020-11-30 03:40:16,736 INFO L274 CegarLoopResult]: For program point L378(lines 378 423) no Hoare annotation was computed. [2020-11-30 03:40:16,736 INFO L274 CegarLoopResult]: For program point L48(lines 48 423) no Hoare annotation was computed. [2020-11-30 03:40:16,736 INFO L274 CegarLoopResult]: For program point L247(lines 247 423) no Hoare annotation was computed. [2020-11-30 03:40:16,737 INFO L274 CegarLoopResult]: For program point L116(lines 116 423) no Hoare annotation was computed. [2020-11-30 03:40:16,737 INFO L274 CegarLoopResult]: For program point L52(lines 52 423) no Hoare annotation was computed. [2020-11-30 03:40:16,737 INFO L274 CegarLoopResult]: For program point L185(lines 185 423) no Hoare annotation was computed. [2020-11-30 03:40:16,737 INFO L274 CegarLoopResult]: For program point L385(lines 385 423) no Hoare annotation was computed. [2020-11-30 03:40:16,737 INFO L274 CegarLoopResult]: For program point L319(lines 319 423) no Hoare annotation was computed. [2020-11-30 03:40:16,737 INFO L274 CegarLoopResult]: For program point L189(lines 189 423) no Hoare annotation was computed. [2020-11-30 03:40:16,737 INFO L274 CegarLoopResult]: For program point L123(lines 123 423) no Hoare annotation was computed. [2020-11-30 03:40:16,737 INFO L274 CegarLoopResult]: For program point L57(lines 57 423) no Hoare annotation was computed. [2020-11-30 03:40:16,737 INFO L274 CegarLoopResult]: For program point L388(lines 388 423) no Hoare annotation was computed. [2020-11-30 03:40:16,738 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 03:40:16,738 INFO L274 CegarLoopResult]: For program point L390(lines 390 423) no Hoare annotation was computed. [2020-11-30 03:40:16,738 INFO L274 CegarLoopResult]: For program point L324(lines 324 423) no Hoare annotation was computed. [2020-11-30 03:40:16,738 INFO L274 CegarLoopResult]: For program point L258(lines 258 423) no Hoare annotation was computed. [2020-11-30 03:40:16,738 INFO L274 CegarLoopResult]: For program point L60(lines 60 423) no Hoare annotation was computed. [2020-11-30 03:40:16,738 INFO L274 CegarLoopResult]: For program point L195(lines 195 423) no Hoare annotation was computed. [2020-11-30 03:40:16,738 INFO L274 CegarLoopResult]: For program point L129(lines 129 423) no Hoare annotation was computed. [2020-11-30 03:40:16,738 INFO L274 CegarLoopResult]: For program point L64(lines 64 423) no Hoare annotation was computed. [2020-11-30 03:40:16,738 INFO L274 CegarLoopResult]: For program point L263(lines 263 423) no Hoare annotation was computed. [2020-11-30 03:40:16,738 INFO L274 CegarLoopResult]: For program point L197(lines 197 423) no Hoare annotation was computed. [2020-11-30 03:40:16,739 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 03:40:16,739 INFO L274 CegarLoopResult]: For program point L199(lines 199 423) no Hoare annotation was computed. [2020-11-30 03:40:16,739 INFO L274 CegarLoopResult]: For program point L133(lines 133 423) no Hoare annotation was computed. [2020-11-30 03:40:16,739 INFO L274 CegarLoopResult]: For program point L399(lines 399 423) no Hoare annotation was computed. [2020-11-30 03:40:16,739 INFO L274 CegarLoopResult]: For program point L201(lines 201 423) no Hoare annotation was computed. [2020-11-30 03:40:16,739 INFO L274 CegarLoopResult]: For program point L69(lines 69 423) no Hoare annotation was computed. [2020-11-30 03:40:16,739 INFO L274 CegarLoopResult]: For program point L269(lines 269 423) no Hoare annotation was computed. [2020-11-30 03:40:16,739 INFO L274 CegarLoopResult]: For program point L204(lines 204 423) no Hoare annotation was computed. [2020-11-30 03:40:16,739 INFO L274 CegarLoopResult]: For program point L271(lines 271 423) no Hoare annotation was computed. [2020-11-30 03:40:16,740 INFO L274 CegarLoopResult]: For program point L404(lines 404 423) no Hoare annotation was computed. [2020-11-30 03:40:16,740 INFO L274 CegarLoopResult]: For program point L338(lines 338 423) no Hoare annotation was computed. [2020-11-30 03:40:16,740 INFO L274 CegarLoopResult]: For program point L140(lines 140 423) no Hoare annotation was computed. [2020-11-30 03:40:16,740 INFO L274 CegarLoopResult]: For program point L75(lines 75 423) no Hoare annotation was computed. [2020-11-30 03:40:16,740 INFO L274 CegarLoopResult]: For program point L208(lines 208 423) no Hoare annotation was computed. [2020-11-30 03:40:16,740 INFO L274 CegarLoopResult]: For program point L341(lines 341 423) no Hoare annotation was computed. [2020-11-30 03:40:16,740 INFO L274 CegarLoopResult]: For program point L408(lines 408 423) no Hoare annotation was computed. [2020-11-30 03:40:16,740 INFO L274 CegarLoopResult]: For program point L144(lines 144 423) no Hoare annotation was computed. [2020-11-30 03:40:16,741 INFO L270 CegarLoopResult]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse0 (= ~a19~0 1)) (.cse1 (<= ~a17~0 7)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1) (and .cse0 .cse2) (not (= ~a11~0 1)) (<= ~a28~0 9) (and .cse1 .cse2))) [2020-11-30 03:40:16,741 INFO L274 CegarLoopResult]: For program point L79(lines 79 423) no Hoare annotation was computed. [2020-11-30 03:40:16,741 INFO L274 CegarLoopResult]: For program point L212(lines 212 423) no Hoare annotation was computed. [2020-11-30 03:40:16,741 INFO L277 CegarLoopResult]: At program point L610(lines 610 627) the Hoare annotation is: true [2020-11-30 03:40:16,741 INFO L274 CegarLoopResult]: For program point L412(lines 412 423) no Hoare annotation was computed. [2020-11-30 03:40:16,741 INFO L274 CegarLoopResult]: For program point L347(lines 347 423) no Hoare annotation was computed. [2020-11-30 03:40:16,741 INFO L274 CegarLoopResult]: For program point L149(lines 149 423) no Hoare annotation was computed. [2020-11-30 03:40:16,742 INFO L274 CegarLoopResult]: For program point L414(lines 414 423) no Hoare annotation was computed. [2020-11-30 03:40:16,742 INFO L274 CegarLoopResult]: For program point L84(lines 84 423) no Hoare annotation was computed. [2020-11-30 03:40:16,742 INFO L274 CegarLoopResult]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 03:40:16,742 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 03:40:16,742 INFO L274 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-11-30 03:40:16,742 INFO L274 CegarLoopResult]: For program point L153(lines 153 423) no Hoare annotation was computed. [2020-11-30 03:40:16,742 INFO L270 CegarLoopResult]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse0 (= ~a19~0 1)) (.cse1 (<= ~a17~0 7)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1) (and .cse0 .cse2) (not (= ~a11~0 1)) (<= ~a28~0 9) (and .cse1 .cse2))) [2020-11-30 03:40:16,742 INFO L274 CegarLoopResult]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2020-11-30 03:40:16,743 INFO L274 CegarLoopResult]: For program point L286(lines 286 423) no Hoare annotation was computed. [2020-11-30 03:40:16,743 INFO L274 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-11-30 03:40:16,743 INFO L274 CegarLoopResult]: For program point L419(lines 419 423) no Hoare annotation was computed. [2020-11-30 03:40:16,743 INFO L274 CegarLoopResult]: For program point L222(lines 222 423) no Hoare annotation was computed. [2020-11-30 03:40:16,743 INFO L274 CegarLoopResult]: For program point L290(lines 290 423) no Hoare annotation was computed. [2020-11-30 03:40:16,743 INFO L274 CegarLoopResult]: For program point L158(lines 158 423) no Hoare annotation was computed. [2020-11-30 03:40:16,743 INFO L274 CegarLoopResult]: For program point L92(lines 92 423) no Hoare annotation was computed. [2020-11-30 03:40:16,743 INFO L274 CegarLoopResult]: For program point L621(line 621) no Hoare annotation was computed. [2020-11-30 03:40:16,743 INFO L274 CegarLoopResult]: For program point L225(lines 225 423) no Hoare annotation was computed. [2020-11-30 03:40:16,743 INFO L274 CegarLoopResult]: For program point L359(lines 359 423) no Hoare annotation was computed. [2020-11-30 03:40:16,744 INFO L274 CegarLoopResult]: For program point L293(lines 293 423) no Hoare annotation was computed. [2020-11-30 03:40:16,744 INFO L274 CegarLoopResult]: For program point L228(lines 228 423) no Hoare annotation was computed. [2020-11-30 03:40:16,744 INFO L274 CegarLoopResult]: For program point L296(lines 296 423) no Hoare annotation was computed. [2020-11-30 03:40:16,744 INFO L274 CegarLoopResult]: For program point L164(lines 164 423) no Hoare annotation was computed. [2020-11-30 03:40:16,744 INFO L274 CegarLoopResult]: For program point L364(lines 364 423) no Hoare annotation was computed. [2020-11-30 03:40:16,744 INFO L274 CegarLoopResult]: For program point L233(lines 233 423) no Hoare annotation was computed. [2020-11-30 03:40:16,744 INFO L274 CegarLoopResult]: For program point L101(lines 101 423) no Hoare annotation was computed. [2020-11-30 03:40:16,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:40:16 BoogieIcfgContainer [2020-11-30 03:40:16,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:40:16,771 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:40:16,771 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:40:16,771 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:40:16,772 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:40:09" (3/4) ... [2020-11-30 03:40:16,776 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 03:40:16,804 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 113 nodes and edges [2020-11-30 03:40:16,806 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-11-30 03:40:16,809 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-30 03:40:16,811 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 03:40:16,976 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_241ad47d-7d9b-48ee-a6a1-cae6597f8dc1/bin/utaipan/witness.graphml [2020-11-30 03:40:16,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:40:16,978 INFO L168 Benchmark]: Toolchain (without parser) took 11080.43 ms. Allocated memory was 94.4 MB in the beginning and 220.2 MB in the end (delta: 125.8 MB). Free memory was 58.2 MB in the beginning and 154.9 MB in the end (delta: -96.6 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:40:16,978 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 76.4 MB in the beginning and 76.3 MB in the end (delta: 65.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:40:16,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.92 ms. Allocated memory is still 94.4 MB. Free memory was 58.1 MB in the beginning and 56.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:40:16,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.37 ms. Allocated memory is still 94.4 MB. Free memory was 56.5 MB in the beginning and 50.9 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:40:16,979 INFO L168 Benchmark]: Boogie Preprocessor took 110.94 ms. Allocated memory is still 94.4 MB. Free memory was 50.9 MB in the beginning and 46.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 03:40:16,980 INFO L168 Benchmark]: RCFGBuilder took 2619.48 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 46.6 MB in the beginning and 45.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2020-11-30 03:40:16,981 INFO L168 Benchmark]: TraceAbstraction took 7228.16 ms. Allocated memory was 115.3 MB in the beginning and 220.2 MB in the end (delta: 104.9 MB). Free memory was 45.2 MB in the beginning and 170.6 MB in the end (delta: -125.4 MB). Peak memory consumption was 59.0 MB. Max. memory is 16.1 GB. [2020-11-30 03:40:16,981 INFO L168 Benchmark]: Witness Printer took 205.13 ms. Allocated memory is still 220.2 MB. Free memory was 170.6 MB in the beginning and 154.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 03:40:16,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 76.4 MB in the beginning and 76.3 MB in the end (delta: 65.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 787.92 ms. Allocated memory is still 94.4 MB. Free memory was 58.1 MB in the beginning and 56.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 121.37 ms. Allocated memory is still 94.4 MB. Free memory was 56.5 MB in the beginning and 50.9 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 110.94 ms. Allocated memory is still 94.4 MB. Free memory was 50.9 MB in the beginning and 46.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2619.48 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 46.6 MB in the beginning and 45.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7228.16 ms. Allocated memory was 115.3 MB in the beginning and 220.2 MB in the end (delta: 104.9 MB). Free memory was 45.2 MB in the beginning and 170.6 MB in the end (delta: -125.4 MB). Peak memory consumption was 59.0 MB. Max. memory is 16.1 GB. * Witness Printer took 205.13 ms. Allocated memory is still 220.2 MB. Free memory was 170.6 MB in the beginning and 154.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 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 == 1 && a17 <= 7) || (a19 == 1 && a28 <= 10)) || !(a11 == 1)) || a28 <= 9) || (a17 <= 7 && a28 <= 10) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((a19 == 1 && a17 <= 7) || (a19 == 1 && a28 <= 10)) || !(a11 == 1)) || a28 <= 9) || (a17 <= 7 && a28 <= 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.9s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 352 SDtfs, 237 SDslu, 24 SDs, 0 SdLazy, 1385 SolverSat, 510 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 405 GetRequests, 392 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1203occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 59 HoareAnnotationTreeSize, 3 FomulaSimplifications, 414 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 765 NumberOfCodeBlocks, 765 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 951 ConstructedInterpolants, 0 QuantifiedInterpolants, 371089 SizeOfPredicates, 2 NumberOfNonLiveVariables, 557 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 174/193 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...