./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label31.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label31.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c11a77ae60398387f07c46b13bc2f8c57513c68 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:53:28,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:53:28,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:53:28,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:53:28,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:53:28,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:53:28,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:53:28,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:53:28,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:53:28,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:53:28,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:53:28,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:53:28,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:53:28,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:53:28,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:53:28,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:53:28,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:53:28,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:53:28,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:53:28,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:53:28,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:53:28,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:53:28,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:53:28,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:53:28,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:53:28,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:53:28,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:53:28,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:53:28,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:53:28,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:53:28,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:53:28,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:53:28,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:53:28,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:53:28,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:53:28,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:53:28,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:53:28,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:53:28,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:53:28,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:53:28,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:53:28,444 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:53:28,467 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:53:28,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:53:28,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:53:28,483 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:53:28,484 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:53:28,484 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:53:28,484 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:53:28,485 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:53:28,485 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:53:28,485 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:53:28,486 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:53:28,487 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:53:28,487 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:53:28,487 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:53:28,487 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:53:28,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:53:28,488 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:53:28,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:53:28,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:53:28,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:53:28,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:53:28,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:53:28,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:53:28,490 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:53:28,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:53:28,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:53:28,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:53:28,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:53:28,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:53:28,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:53:28,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:53:28,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:53:28,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:53:28,493 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:53:28,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:53:28,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:53:28,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:53:28,494 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/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(__VERIFIER_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 -> 6c11a77ae60398387f07c46b13bc2f8c57513c68 [2019-11-26 02:53:28,659 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:53:28,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:53:28,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:53:28,679 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:53:28,679 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:53:28,679 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label31.c [2019-11-26 02:53:28,735 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/bin/utaipan/data/17be3392b/0d067afae4724776a43014467dc61968/FLAG4cf01a5bd [2019-11-26 02:53:29,192 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:53:29,193 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/sv-benchmarks/c/eca-rers2012/Problem01_label31.c [2019-11-26 02:53:29,205 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/bin/utaipan/data/17be3392b/0d067afae4724776a43014467dc61968/FLAG4cf01a5bd [2019-11-26 02:53:29,700 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/bin/utaipan/data/17be3392b/0d067afae4724776a43014467dc61968 [2019-11-26 02:53:29,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:53:29,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:53:29,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:53:29,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:53:29,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:53:29,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:53:29" (1/1) ... [2019-11-26 02:53:29,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc44a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:29, skipping insertion in model container [2019-11-26 02:53:29,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:53:29" (1/1) ... [2019-11-26 02:53:29,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:53:29,762 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:53:30,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:53:30,174 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:53:30,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:53:30,281 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:53:30,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:30 WrapperNode [2019-11-26 02:53:30,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:53:30,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:53:30,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:53:30,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:53:30,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:30" (1/1) ... [2019-11-26 02:53:30,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:30" (1/1) ... [2019-11-26 02:53:30,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:53:30,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:53:30,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:53:30,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:53:30,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:30" (1/1) ... [2019-11-26 02:53:30,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:30" (1/1) ... [2019-11-26 02:53:30,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:30" (1/1) ... [2019-11-26 02:53:30,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:30" (1/1) ... [2019-11-26 02:53:30,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:30" (1/1) ... [2019-11-26 02:53:30,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:30" (1/1) ... [2019-11-26 02:53:30,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:30" (1/1) ... [2019-11-26 02:53:30,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:53:30,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:53:30,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:53:30,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:53:30,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/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 [2019-11-26 02:53:30,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:53:30,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:53:32,295 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:53:32,295 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-26 02:53:32,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:53:32 BoogieIcfgContainer [2019-11-26 02:53:32,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:53:32,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:53:32,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:53:32,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:53:32,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:53:29" (1/3) ... [2019-11-26 02:53:32,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43cc95b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:53:32, skipping insertion in model container [2019-11-26 02:53:32,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:30" (2/3) ... [2019-11-26 02:53:32,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43cc95b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:53:32, skipping insertion in model container [2019-11-26 02:53:32,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:53:32" (3/3) ... [2019-11-26 02:53:32,307 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label31.c [2019-11-26 02:53:32,316 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:53:32,323 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:53:32,333 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:53:32,363 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:53:32,363 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:53:32,364 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:53:32,364 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:53:32,364 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:53:32,364 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:53:32,364 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:53:32,365 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:53:32,384 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2019-11-26 02:53:32,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-11-26 02:53:32,393 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:53:32,394 INFO L410 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] [2019-11-26 02:53:32,395 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:53:32,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:53:32,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1323244575, now seen corresponding path program 1 times [2019-11-26 02:53:32,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:53:32,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503092372] [2019-11-26 02:53:32,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:53:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:53:32,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:53:32,814 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503092372] [2019-11-26 02:53:32,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:53:32,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:53:32,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404740515] [2019-11-26 02:53:32,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:53:32,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:53:32,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:53:32,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:53:32,836 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 3 states. [2019-11-26 02:53:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:53:33,356 INFO L93 Difference]: Finished difference Result 224 states and 428 transitions. [2019-11-26 02:53:33,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:53:33,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2019-11-26 02:53:33,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:53:33,370 INFO L225 Difference]: With dead ends: 224 [2019-11-26 02:53:33,370 INFO L226 Difference]: Without dead ends: 145 [2019-11-26 02:53:33,373 INFO L630 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 [2019-11-26 02:53:33,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-11-26 02:53:33,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2019-11-26 02:53:33,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-11-26 02:53:33,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 253 transitions. [2019-11-26 02:53:33,437 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 253 transitions. Word has length 71 [2019-11-26 02:53:33,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:53:33,437 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 253 transitions. [2019-11-26 02:53:33,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:53:33,438 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 253 transitions. [2019-11-26 02:53:33,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-11-26 02:53:33,440 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:53:33,441 INFO L410 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] [2019-11-26 02:53:33,441 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:53:33,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:53:33,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1129605657, now seen corresponding path program 1 times [2019-11-26 02:53:33,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:53:33,442 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83628893] [2019-11-26 02:53:33,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:53:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:53:33,563 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:53:33,563 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83628893] [2019-11-26 02:53:33,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:53:33,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:53:33,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869365792] [2019-11-26 02:53:33,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:53:33,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:53:33,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:53:33,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:53:33,571 INFO L87 Difference]: Start difference. First operand 145 states and 253 transitions. Second operand 3 states. [2019-11-26 02:53:33,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:53:33,948 INFO L93 Difference]: Finished difference Result 431 states and 756 transitions. [2019-11-26 02:53:33,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:53:33,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2019-11-26 02:53:33,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:53:33,952 INFO L225 Difference]: With dead ends: 431 [2019-11-26 02:53:33,952 INFO L226 Difference]: Without dead ends: 287 [2019-11-26 02:53:33,954 INFO L630 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 [2019-11-26 02:53:33,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2019-11-26 02:53:33,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2019-11-26 02:53:33,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2019-11-26 02:53:33,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 467 transitions. [2019-11-26 02:53:33,977 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 467 transitions. Word has length 75 [2019-11-26 02:53:33,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:53:33,977 INFO L462 AbstractCegarLoop]: Abstraction has 287 states and 467 transitions. [2019-11-26 02:53:33,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:53:33,978 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 467 transitions. [2019-11-26 02:53:33,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-11-26 02:53:33,981 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:53:33,981 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-26 02:53:33,981 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:53:33,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:53:33,983 INFO L82 PathProgramCache]: Analyzing trace with hash 2133652078, now seen corresponding path program 1 times [2019-11-26 02:53:33,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:53:33,983 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689448267] [2019-11-26 02:53:33,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:53:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:53:34,036 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-26 02:53:34,037 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689448267] [2019-11-26 02:53:34,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:53:34,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:53:34,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527879071] [2019-11-26 02:53:34,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:53:34,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:53:34,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:53:34,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:53:34,038 INFO L87 Difference]: Start difference. First operand 287 states and 467 transitions. Second operand 3 states. [2019-11-26 02:53:34,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:53:34,463 INFO L93 Difference]: Finished difference Result 715 states and 1184 transitions. [2019-11-26 02:53:34,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:53:34,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2019-11-26 02:53:34,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:53:34,467 INFO L225 Difference]: With dead ends: 715 [2019-11-26 02:53:34,467 INFO L226 Difference]: Without dead ends: 429 [2019-11-26 02:53:34,469 INFO L630 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 [2019-11-26 02:53:34,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2019-11-26 02:53:34,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 358. [2019-11-26 02:53:34,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2019-11-26 02:53:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 587 transitions. [2019-11-26 02:53:34,495 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 587 transitions. Word has length 94 [2019-11-26 02:53:34,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:53:34,496 INFO L462 AbstractCegarLoop]: Abstraction has 358 states and 587 transitions. [2019-11-26 02:53:34,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:53:34,496 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 587 transitions. [2019-11-26 02:53:34,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-11-26 02:53:34,500 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:53:34,500 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:53:34,500 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:53:34,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:53:34,501 INFO L82 PathProgramCache]: Analyzing trace with hash 233183716, now seen corresponding path program 1 times [2019-11-26 02:53:34,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:53:34,501 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460211478] [2019-11-26 02:53:34,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:53:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:53:34,730 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-26 02:53:34,732 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460211478] [2019-11-26 02:53:34,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:53:34,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:53:34,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501500588] [2019-11-26 02:53:34,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:53:34,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:53:34,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:53:34,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:53:34,736 INFO L87 Difference]: Start difference. First operand 358 states and 587 transitions. Second operand 5 states. [2019-11-26 02:53:35,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:53:35,291 INFO L93 Difference]: Finished difference Result 788 states and 1270 transitions. [2019-11-26 02:53:35,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:53:35,291 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2019-11-26 02:53:35,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:53:35,294 INFO L225 Difference]: With dead ends: 788 [2019-11-26 02:53:35,294 INFO L226 Difference]: Without dead ends: 431 [2019-11-26 02:53:35,297 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:53:35,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-11-26 02:53:35,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 429. [2019-11-26 02:53:35,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-11-26 02:53:35,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 664 transitions. [2019-11-26 02:53:35,337 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 664 transitions. Word has length 98 [2019-11-26 02:53:35,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:53:35,339 INFO L462 AbstractCegarLoop]: Abstraction has 429 states and 664 transitions. [2019-11-26 02:53:35,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:53:35,339 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 664 transitions. [2019-11-26 02:53:35,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-11-26 02:53:35,343 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:53:35,343 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-11-26 02:53:35,343 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:53:35,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:53:35,344 INFO L82 PathProgramCache]: Analyzing trace with hash -882347860, now seen corresponding path program 1 times [2019-11-26 02:53:35,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:53:35,344 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261528392] [2019-11-26 02:53:35,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:53:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:53:35,396 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-26 02:53:35,396 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261528392] [2019-11-26 02:53:35,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:53:35,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:53:35,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627059375] [2019-11-26 02:53:35,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:53:35,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:53:35,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:53:35,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:53:35,399 INFO L87 Difference]: Start difference. First operand 429 states and 664 transitions. Second operand 4 states. [2019-11-26 02:53:35,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:53:35,890 INFO L93 Difference]: Finished difference Result 1070 states and 1672 transitions. [2019-11-26 02:53:35,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:53:35,892 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2019-11-26 02:53:35,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:53:35,896 INFO L225 Difference]: With dead ends: 1070 [2019-11-26 02:53:35,896 INFO L226 Difference]: Without dead ends: 713 [2019-11-26 02:53:35,897 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:53:35,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2019-11-26 02:53:35,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 713. [2019-11-26 02:53:35,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2019-11-26 02:53:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1020 transitions. [2019-11-26 02:53:35,924 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1020 transitions. Word has length 102 [2019-11-26 02:53:35,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:53:35,925 INFO L462 AbstractCegarLoop]: Abstraction has 713 states and 1020 transitions. [2019-11-26 02:53:35,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:53:35,925 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1020 transitions. [2019-11-26 02:53:35,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-11-26 02:53:35,928 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:53:35,929 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2019-11-26 02:53:35,929 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:53:35,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:53:35,929 INFO L82 PathProgramCache]: Analyzing trace with hash 501971409, now seen corresponding path program 1 times [2019-11-26 02:53:35,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:53:35,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868666579] [2019-11-26 02:53:35,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:53:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:53:36,004 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-26 02:53:36,005 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868666579] [2019-11-26 02:53:36,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:53:36,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:53:36,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66527821] [2019-11-26 02:53:36,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:53:36,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:53:36,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:53:36,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:53:36,008 INFO L87 Difference]: Start difference. First operand 713 states and 1020 transitions. Second operand 3 states. [2019-11-26 02:53:36,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:53:36,301 INFO L93 Difference]: Finished difference Result 1354 states and 1962 transitions. [2019-11-26 02:53:36,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:53:36,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2019-11-26 02:53:36,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:53:36,305 INFO L225 Difference]: With dead ends: 1354 [2019-11-26 02:53:36,306 INFO L226 Difference]: Without dead ends: 713 [2019-11-26 02:53:36,307 INFO L630 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 [2019-11-26 02:53:36,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2019-11-26 02:53:36,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 642. [2019-11-26 02:53:36,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2019-11-26 02:53:36,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 925 transitions. [2019-11-26 02:53:36,329 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 925 transitions. Word has length 105 [2019-11-26 02:53:36,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:53:36,333 INFO L462 AbstractCegarLoop]: Abstraction has 642 states and 925 transitions. [2019-11-26 02:53:36,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:53:36,334 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 925 transitions. [2019-11-26 02:53:36,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-11-26 02:53:36,336 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:53:36,337 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2019-11-26 02:53:36,337 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:53:36,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:53:36,337 INFO L82 PathProgramCache]: Analyzing trace with hash 37906286, now seen corresponding path program 1 times [2019-11-26 02:53:36,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:53:36,338 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72474944] [2019-11-26 02:53:36,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:53:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:53:36,419 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-26 02:53:36,420 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72474944] [2019-11-26 02:53:36,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:53:36,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:53:36,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342105693] [2019-11-26 02:53:36,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:53:36,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:53:36,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:53:36,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:53:36,422 INFO L87 Difference]: Start difference. First operand 642 states and 925 transitions. Second operand 4 states. [2019-11-26 02:53:36,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:53:36,992 INFO L93 Difference]: Finished difference Result 1920 states and 2800 transitions. [2019-11-26 02:53:36,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:53:36,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2019-11-26 02:53:36,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:53:36,993 INFO L225 Difference]: With dead ends: 1920 [2019-11-26 02:53:36,993 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:53:36,995 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:53:36,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:53:36,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:53:36,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:53:36,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:53:36,996 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 111 [2019-11-26 02:53:36,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:53:36,996 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:53:36,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:53:36,996 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:53:36,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:53:37,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:53:37,110 INFO L444 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-26 02:53:37,110 INFO L444 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-26 02:53:37,111 INFO L444 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-26 02:53:37,111 INFO L444 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-26 02:53:37,111 INFO L444 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-26 02:53:37,111 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-26 02:53:37,111 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-26 02:53:37,111 INFO L444 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-26 02:53:37,111 INFO L444 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-26 02:53:37,111 INFO L444 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-26 02:53:37,111 INFO L444 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-26 02:53:37,111 INFO L444 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-26 02:53:37,111 INFO L444 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-26 02:53:37,111 INFO L444 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-26 02:53:37,112 INFO L444 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-26 02:53:37,112 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-26 02:53:37,112 INFO L444 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-26 02:53:37,112 INFO L440 ceAbstractionStarter]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse0 (not (= ~a16~0 6))) (.cse1 (= ~a21~0 1))) (or (and .cse0 .cse1) (and .cse0 (= ~a17~0 1)) (= ~a20~0 1) (and (not (= 1 ~a7~0)) .cse1))) [2019-11-26 02:53:37,112 INFO L444 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-26 02:53:37,112 INFO L444 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-26 02:53:37,112 INFO L444 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-26 02:53:37,112 INFO L444 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-26 02:53:37,112 INFO L444 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-26 02:53:37,113 INFO L444 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-26 02:53:37,113 INFO L444 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-26 02:53:37,113 INFO L444 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-26 02:53:37,113 INFO L447 ceAbstractionStarter]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-11-26 02:53:37,113 INFO L444 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-26 02:53:37,113 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-26 02:53:37,113 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-26 02:53:37,113 INFO L444 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-26 02:53:37,113 INFO L444 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-11-26 02:53:37,113 INFO L444 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-26 02:53:37,113 INFO L444 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-26 02:53:37,114 INFO L444 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-26 02:53:37,114 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:53:37,114 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-26 02:53:37,114 INFO L444 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-26 02:53:37,114 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-26 02:53:37,114 INFO L444 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-26 02:53:37,114 INFO L444 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-26 02:53:37,114 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-26 02:53:37,114 INFO L440 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (not (= ~a16~0 6))) (.cse1 (= ~a21~0 1))) (or (and .cse0 .cse1) (and .cse0 (= ~a17~0 1)) (= ~a20~0 1) (and (not (= 1 ~a7~0)) .cse1))) [2019-11-26 02:53:37,114 INFO L444 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-11-26 02:53:37,115 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-26 02:53:37,115 INFO L444 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-26 02:53:37,115 INFO L444 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-26 02:53:37,115 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-26 02:53:37,115 INFO L444 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-26 02:53:37,115 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:53:37,115 INFO L444 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-26 02:53:37,115 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-26 02:53:37,115 INFO L444 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-26 02:53:37,115 INFO L444 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-26 02:53:37,115 INFO L444 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-26 02:53:37,115 INFO L444 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-26 02:53:37,116 INFO L444 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-26 02:53:37,116 INFO L444 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-26 02:53:37,116 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-26 02:53:37,116 INFO L444 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-26 02:53:37,116 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-26 02:53:37,116 INFO L444 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-26 02:53:37,116 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-26 02:53:37,116 INFO L444 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-26 02:53:37,116 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-26 02:53:37,116 INFO L444 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-26 02:53:37,116 INFO L444 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-26 02:53:37,116 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-26 02:53:37,117 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 452) no Hoare annotation was computed. [2019-11-26 02:53:37,117 INFO L444 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-26 02:53:37,117 INFO L444 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-26 02:53:37,117 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-26 02:53:37,117 INFO L444 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-26 02:53:37,117 INFO L444 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-26 02:53:37,117 INFO L444 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-26 02:53:37,117 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-26 02:53:37,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:53:37 BoogieIcfgContainer [2019-11-26 02:53:37,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:53:37,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:53:37,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:53:37,144 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:53:37,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:53:32" (3/4) ... [2019-11-26 02:53:37,147 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:53:37,174 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 100 nodes and edges [2019-11-26 02:53:37,177 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2019-11-26 02:53:37,179 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-26 02:53:37,390 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2f9d7f24-aac0-4d44-b283-ffd88fc3062b/bin/utaipan/witness.graphml [2019-11-26 02:53:37,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:53:37,393 INFO L168 Benchmark]: Toolchain (without parser) took 7687.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.9 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -130.8 MB). Peak memory consumption was 73.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:53:37,393 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:53:37,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 577.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:53:37,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:53:37,395 INFO L168 Benchmark]: Boogie Preprocessor took 93.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:53:37,395 INFO L168 Benchmark]: RCFGBuilder took 1854.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 901.0 MB in the end (delta: 206.9 MB). Peak memory consumption was 206.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:53:37,395 INFO L168 Benchmark]: TraceAbstraction took 4843.67 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.4 MB). Free memory was 901.0 MB in the beginning and 1.1 GB in the end (delta: -191.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:53:37,396 INFO L168 Benchmark]: Witness Printer took 246.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:53:37,399 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 577.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 93.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1854.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 901.0 MB in the end (delta: 206.9 MB). Peak memory consumption was 206.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4843.67 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.4 MB). Free memory was 901.0 MB in the beginning and 1.1 GB in the end (delta: -191.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 246.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 452]: 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: 30]: Loop Invariant Derived loop invariant: (((!(a16 == 6) && a21 == 1) || (!(a16 == 6) && a17 == 1)) || a20 == 1) || (!(1 == a7) && a21 == 1) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((!(a16 == 6) && a21 == 1) || (!(a16 == 6) && a17 == 1)) || a20 == 1) || (!(1 == a7) && a21 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Result: SAFE, OverallTime: 4.7s, OverallIterations: 7, TraceHistogramMax: 5, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 256 SDtfs, 705 SDslu, 40 SDs, 0 SdLazy, 1943 SolverSat, 542 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=713occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 144 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 57 HoareAnnotationTreeSize, 3 FomulaSimplifications, 767 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 656 NumberOfCodeBlocks, 656 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 649 ConstructedInterpolants, 0 QuantifiedInterpolants, 133471 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 247/247 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...