./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label42.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_364b61b2-03ac-4bbb-84bb-eb4839b894bf/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label42.c -s /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/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 a8726e54e507f4e5407a6f1ab8a73f56b359228a ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:37:22,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:37:22,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:37:22,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:37:22,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:37:22,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:37:22,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:37:22,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:37:22,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:37:22,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:37:22,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:37:22,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:37:22,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:37:22,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:37:22,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:37:22,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:37:22,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:37:22,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:37:22,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:37:22,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:37:22,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:37:22,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:37:22,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:37:22,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:37:22,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:37:22,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:37:22,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:37:22,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:37:22,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:37:22,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:37:22,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:37:22,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:37:22,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:37:22,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:37:22,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:37:22,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:37:22,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:37:22,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:37:22,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:37:22,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:37:22,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:37:22,490 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:37:22,516 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:37:22,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:37:22,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:37:22,518 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:37:22,518 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:37:22,518 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:37:22,518 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:37:22,518 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:37:22,519 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:37:22,519 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:37:22,519 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:37:22,519 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:37:22,519 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:37:22,520 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:37:22,520 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:37:22,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:37:22,520 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:37:22,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:37:22,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:37:22,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:37:22,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:37:22,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:37:22,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:37:22,522 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:37:22,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:37:22,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:37:22,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:37:22,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:37:22,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:37:22,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:37:22,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:37:22,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:37:22,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:37:22,524 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:37:22,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:37:22,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:37:22,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:37:22,524 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_364b61b2-03ac-4bbb-84bb-eb4839b894bf/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 -> a8726e54e507f4e5407a6f1ab8a73f56b359228a [2019-11-26 02:37:22,693 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:37:22,703 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:37:22,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:37:22,708 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:37:22,708 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:37:22,709 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label42.c [2019-11-26 02:37:22,759 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/bin/utaipan/data/731ab2ade/7acc7e91fe3645f3bc83c6097ed35683/FLAG97e1fda09 [2019-11-26 02:37:23,302 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:37:23,302 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/sv-benchmarks/c/eca-rers2012/Problem02_label42.c [2019-11-26 02:37:23,314 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/bin/utaipan/data/731ab2ade/7acc7e91fe3645f3bc83c6097ed35683/FLAG97e1fda09 [2019-11-26 02:37:23,786 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/bin/utaipan/data/731ab2ade/7acc7e91fe3645f3bc83c6097ed35683 [2019-11-26 02:37:23,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:37:23,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:37:23,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:37:23,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:37:23,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:37:23,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:37:23" (1/1) ... [2019-11-26 02:37:23,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ac5180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:23, skipping insertion in model container [2019-11-26 02:37:23,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:37:23" (1/1) ... [2019-11-26 02:37:23,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:37:23,870 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:37:24,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:37:24,334 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:37:24,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:37:24,437 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:37:24,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:24 WrapperNode [2019-11-26 02:37:24,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:37:24,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:37:24,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:37:24,439 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:37:24,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:24" (1/1) ... [2019-11-26 02:37:24,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:24" (1/1) ... [2019-11-26 02:37:24,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:37:24,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:37:24,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:37:24,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:37:24,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:24" (1/1) ... [2019-11-26 02:37:24,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:24" (1/1) ... [2019-11-26 02:37:24,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:24" (1/1) ... [2019-11-26 02:37:24,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:24" (1/1) ... [2019-11-26 02:37:24,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:24" (1/1) ... [2019-11-26 02:37:24,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:24" (1/1) ... [2019-11-26 02:37:24,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:24" (1/1) ... [2019-11-26 02:37:24,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:37:24,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:37:24,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:37:24,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:37:24,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/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 02:37:24,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:37:24,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:37:26,809 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:37:26,809 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-26 02:37:26,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:37:26 BoogieIcfgContainer [2019-11-26 02:37:26,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:37:26,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:37:26,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:37:26,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:37:26,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:37:23" (1/3) ... [2019-11-26 02:37:26,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a97840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:37:26, skipping insertion in model container [2019-11-26 02:37:26,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:37:24" (2/3) ... [2019-11-26 02:37:26,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a97840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:37:26, skipping insertion in model container [2019-11-26 02:37:26,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:37:26" (3/3) ... [2019-11-26 02:37:26,817 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label42.c [2019-11-26 02:37:26,825 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:37:26,832 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:37:26,842 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:37:26,866 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:37:26,866 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:37:26,866 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:37:26,867 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:37:26,867 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:37:26,867 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:37:26,867 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:37:26,868 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:37:26,889 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-11-26 02:37:26,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-11-26 02:37:26,899 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:37:26,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:37:26,902 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:37:26,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:37:26,908 INFO L82 PathProgramCache]: Analyzing trace with hash 925947529, now seen corresponding path program 1 times [2019-11-26 02:37:26,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:37:26,918 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72481788] [2019-11-26 02:37:26,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:37:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:37:27,288 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 02:37:27,289 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72481788] [2019-11-26 02:37:27,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:37:27,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:37:27,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159500709] [2019-11-26 02:37:27,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:37:27,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:37:27,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:37:27,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:37:27,313 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 4 states. [2019-11-26 02:37:28,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:37:28,173 INFO L93 Difference]: Finished difference Result 333 states and 641 transitions. [2019-11-26 02:37:28,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:37:28,175 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2019-11-26 02:37:28,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:37:28,189 INFO L225 Difference]: With dead ends: 333 [2019-11-26 02:37:28,189 INFO L226 Difference]: Without dead ends: 243 [2019-11-26 02:37:28,193 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 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 02:37:28,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-11-26 02:37:28,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2019-11-26 02:37:28,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2019-11-26 02:37:28,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 398 transitions. [2019-11-26 02:37:28,268 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 398 transitions. Word has length 80 [2019-11-26 02:37:28,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:37:28,269 INFO L462 AbstractCegarLoop]: Abstraction has 243 states and 398 transitions. [2019-11-26 02:37:28,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:37:28,269 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 398 transitions. [2019-11-26 02:37:28,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-11-26 02:37:28,279 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:37:28,280 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:37:28,280 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:37:28,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:37:28,280 INFO L82 PathProgramCache]: Analyzing trace with hash 782306330, now seen corresponding path program 1 times [2019-11-26 02:37:28,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:37:28,281 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470799372] [2019-11-26 02:37:28,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:37:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:37:28,362 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:37:28,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470799372] [2019-11-26 02:37:28,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:37:28,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:37:28,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123821221] [2019-11-26 02:37:28,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:37:28,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:37:28,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:37:28,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:37:28,365 INFO L87 Difference]: Start difference. First operand 243 states and 398 transitions. Second operand 3 states. [2019-11-26 02:37:28,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:37:28,785 INFO L93 Difference]: Finished difference Result 725 states and 1191 transitions. [2019-11-26 02:37:28,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:37:28,786 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2019-11-26 02:37:28,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:37:28,789 INFO L225 Difference]: With dead ends: 725 [2019-11-26 02:37:28,789 INFO L226 Difference]: Without dead ends: 483 [2019-11-26 02:37:28,791 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 02:37:28,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2019-11-26 02:37:28,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2019-11-26 02:37:28,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2019-11-26 02:37:28,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 739 transitions. [2019-11-26 02:37:28,817 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 739 transitions. Word has length 95 [2019-11-26 02:37:28,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:37:28,818 INFO L462 AbstractCegarLoop]: Abstraction has 483 states and 739 transitions. [2019-11-26 02:37:28,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:37:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 739 transitions. [2019-11-26 02:37:28,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-26 02:37:28,823 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:37:28,823 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2019-11-26 02:37:28,824 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:37:28,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:37:28,824 INFO L82 PathProgramCache]: Analyzing trace with hash -6967595, now seen corresponding path program 1 times [2019-11-26 02:37:28,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:37:28,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127713130] [2019-11-26 02:37:28,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:37:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:37:28,949 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-26 02:37:28,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127713130] [2019-11-26 02:37:28,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:37:28,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:37:28,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550507598] [2019-11-26 02:37:28,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:37:28,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:37:28,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:37:28,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:37:28,957 INFO L87 Difference]: Start difference. First operand 483 states and 739 transitions. Second operand 4 states. [2019-11-26 02:37:29,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:37:29,663 INFO L93 Difference]: Finished difference Result 1845 states and 2795 transitions. [2019-11-26 02:37:29,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:37:29,664 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 113 [2019-11-26 02:37:29,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:37:29,671 INFO L225 Difference]: With dead ends: 1845 [2019-11-26 02:37:29,671 INFO L226 Difference]: Without dead ends: 1363 [2019-11-26 02:37:29,673 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 02:37:29,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2019-11-26 02:37:29,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 883. [2019-11-26 02:37:29,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 883 states. [2019-11-26 02:37:29,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1258 transitions. [2019-11-26 02:37:29,733 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1258 transitions. Word has length 113 [2019-11-26 02:37:29,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:37:29,733 INFO L462 AbstractCegarLoop]: Abstraction has 883 states and 1258 transitions. [2019-11-26 02:37:29,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:37:29,734 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1258 transitions. [2019-11-26 02:37:29,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-11-26 02:37:29,738 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:37:29,738 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:29,739 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:37:29,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:37:29,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1236694342, now seen corresponding path program 1 times [2019-11-26 02:37:29,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:37:29,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629128163] [2019-11-26 02:37:29,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:37:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:37:29,833 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-11-26 02:37:29,834 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629128163] [2019-11-26 02:37:29,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:37:29,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:37:29,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676348899] [2019-11-26 02:37:29,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:37:29,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:37:29,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:37:29,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:37:29,837 INFO L87 Difference]: Start difference. First operand 883 states and 1258 transitions. Second operand 3 states. [2019-11-26 02:37:30,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:37:30,316 INFO L93 Difference]: Finished difference Result 2085 states and 3025 transitions. [2019-11-26 02:37:30,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:37:30,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-11-26 02:37:30,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:37:30,324 INFO L225 Difference]: With dead ends: 2085 [2019-11-26 02:37:30,324 INFO L226 Difference]: Without dead ends: 1203 [2019-11-26 02:37:30,327 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 02:37:30,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2019-11-26 02:37:30,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1043. [2019-11-26 02:37:30,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2019-11-26 02:37:30,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1443 transitions. [2019-11-26 02:37:30,358 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1443 transitions. Word has length 132 [2019-11-26 02:37:30,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:37:30,358 INFO L462 AbstractCegarLoop]: Abstraction has 1043 states and 1443 transitions. [2019-11-26 02:37:30,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:37:30,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1443 transitions. [2019-11-26 02:37:30,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-26 02:37:30,361 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:37:30,362 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:30,362 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:37:30,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:37:30,362 INFO L82 PathProgramCache]: Analyzing trace with hash -134838992, now seen corresponding path program 1 times [2019-11-26 02:37:30,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:37:30,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897487371] [2019-11-26 02:37:30,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:37:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:37:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-11-26 02:37:30,420 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897487371] [2019-11-26 02:37:30,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:37:30,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:37:30,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911921812] [2019-11-26 02:37:30,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:37:30,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:37:30,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:37:30,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:37:30,422 INFO L87 Difference]: Start difference. First operand 1043 states and 1443 transitions. Second operand 3 states. [2019-11-26 02:37:30,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:37:30,800 INFO L93 Difference]: Finished difference Result 2165 states and 2995 transitions. [2019-11-26 02:37:30,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:37:30,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2019-11-26 02:37:30,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:37:30,807 INFO L225 Difference]: With dead ends: 2165 [2019-11-26 02:37:30,807 INFO L226 Difference]: Without dead ends: 1123 [2019-11-26 02:37:30,810 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 02:37:30,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2019-11-26 02:37:30,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1123. [2019-11-26 02:37:30,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1123 states. [2019-11-26 02:37:30,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1528 transitions. [2019-11-26 02:37:30,840 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1528 transitions. Word has length 136 [2019-11-26 02:37:30,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:37:30,841 INFO L462 AbstractCegarLoop]: Abstraction has 1123 states and 1528 transitions. [2019-11-26 02:37:30,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:37:30,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1528 transitions. [2019-11-26 02:37:30,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-11-26 02:37:30,845 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:37:30,845 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-11-26 02:37:30,845 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:37:30,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:37:30,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1585363542, now seen corresponding path program 1 times [2019-11-26 02:37:30,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:37:30,846 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224723177] [2019-11-26 02:37:30,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:37:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:37:31,007 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-26 02:37:31,008 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224723177] [2019-11-26 02:37:31,008 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120175484] [2019-11-26 02:37:31,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/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 [2019-11-26 02:37:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:37:31,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-26 02:37:31,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:37:31,174 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-26 02:37:31,175 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:37:31,212 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-26 02:37:31,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-26 02:37:31,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [3] total 4 [2019-11-26 02:37:31,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969390190] [2019-11-26 02:37:31,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:37:31,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:37:31,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:37:31,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:37:31,215 INFO L87 Difference]: Start difference. First operand 1123 states and 1528 transitions. Second operand 3 states. [2019-11-26 02:37:31,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:37:31,436 INFO L93 Difference]: Finished difference Result 2163 states and 2923 transitions. [2019-11-26 02:37:31,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:37:31,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-11-26 02:37:31,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:37:31,438 INFO L225 Difference]: With dead ends: 2163 [2019-11-26 02:37:31,438 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:37:31,440 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 311 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:37:31,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:37:31,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:37:31,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:37:31,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:37:31,441 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2019-11-26 02:37:31,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:37:31,441 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:37:31,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:37:31,442 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:37:31,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:37:31,651 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:37:31,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:37:31,741 INFO L444 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-11-26 02:37:31,741 INFO L444 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-11-26 02:37:31,741 INFO L444 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-11-26 02:37:31,741 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-11-26 02:37:31,741 INFO L444 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-11-26 02:37:31,742 INFO L444 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-11-26 02:37:31,742 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-11-26 02:37:31,742 INFO L444 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-11-26 02:37:31,742 INFO L444 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-11-26 02:37:31,742 INFO L444 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-11-26 02:37:31,742 INFO L444 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-11-26 02:37:31,742 INFO L444 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-11-26 02:37:31,742 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-11-26 02:37:31,742 INFO L444 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-11-26 02:37:31,742 INFO L444 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-11-26 02:37:31,743 INFO L444 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-11-26 02:37:31,743 INFO L444 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-11-26 02:37:31,743 INFO L444 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-11-26 02:37:31,743 INFO L444 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-11-26 02:37:31,743 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-11-26 02:37:31,743 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-11-26 02:37:31,743 INFO L444 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-11-26 02:37:31,743 INFO L444 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-11-26 02:37:31,743 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-11-26 02:37:31,743 INFO L444 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-11-26 02:37:31,744 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:37:31,744 INFO L444 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-11-26 02:37:31,744 INFO L444 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-11-26 02:37:31,744 INFO L444 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-11-26 02:37:31,744 INFO L444 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-11-26 02:37:31,744 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-11-26 02:37:31,744 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-11-26 02:37:31,744 INFO L444 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-11-26 02:37:31,744 INFO L444 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-11-26 02:37:31,744 INFO L444 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-11-26 02:37:31,745 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-11-26 02:37:31,745 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 472) no Hoare annotation was computed. [2019-11-26 02:37:31,745 INFO L444 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-11-26 02:37:31,745 INFO L444 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-11-26 02:37:31,745 INFO L444 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-11-26 02:37:31,745 INFO L444 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-11-26 02:37:31,746 INFO L440 ceAbstractionStarter]: At program point L597(lines 29 598) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (and .cse0 (not (= ~a11~0 1))) (and (not (= ~a28~0 8)) .cse0))) [2019-11-26 02:37:31,746 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-11-26 02:37:31,746 INFO L444 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-11-26 02:37:31,746 INFO L447 ceAbstractionStarter]: At program point L600(lines 600 617) the Hoare annotation is: true [2019-11-26 02:37:31,746 INFO L444 ceAbstractionStarter]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2019-11-26 02:37:31,746 INFO L444 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-11-26 02:37:31,746 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-11-26 02:37:31,746 INFO L444 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-11-26 02:37:31,746 INFO L444 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-11-26 02:37:31,747 INFO L444 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-11-26 02:37:31,747 INFO L444 ceAbstractionStarter]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2019-11-26 02:37:31,747 INFO L444 ceAbstractionStarter]: For program point L472(line 472) no Hoare annotation was computed. [2019-11-26 02:37:31,747 INFO L444 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-11-26 02:37:31,747 INFO L444 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-11-26 02:37:31,747 INFO L440 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (and .cse0 (not (= ~a11~0 1))) (and (not (= ~a28~0 8)) .cse0))) [2019-11-26 02:37:31,747 INFO L444 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-11-26 02:37:31,747 INFO L444 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-11-26 02:37:31,747 INFO L444 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-11-26 02:37:31,748 INFO L444 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-11-26 02:37:31,748 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-11-26 02:37:31,748 INFO L444 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-11-26 02:37:31,748 INFO L444 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-11-26 02:37:31,748 INFO L444 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-11-26 02:37:31,748 INFO L444 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-11-26 02:37:31,748 INFO L444 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-11-26 02:37:31,748 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:37:31,748 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-11-26 02:37:31,749 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-11-26 02:37:31,749 INFO L444 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-11-26 02:37:31,749 INFO L444 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-11-26 02:37:31,749 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-11-26 02:37:31,749 INFO L444 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-11-26 02:37:31,749 INFO L444 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-11-26 02:37:31,749 INFO L444 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-11-26 02:37:31,749 INFO L444 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-11-26 02:37:31,749 INFO L444 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-11-26 02:37:31,749 INFO L444 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-11-26 02:37:31,750 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-11-26 02:37:31,750 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-11-26 02:37:31,750 INFO L444 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-11-26 02:37:31,750 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-11-26 02:37:31,750 INFO L444 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-11-26 02:37:31,750 INFO L444 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-11-26 02:37:31,750 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-11-26 02:37:31,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:37:31 BoogieIcfgContainer [2019-11-26 02:37:31,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:37:31,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:37:31,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:37:31,765 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:37:31,766 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:37:26" (3/4) ... [2019-11-26 02:37:31,769 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:37:31,791 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2019-11-26 02:37:31,793 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2019-11-26 02:37:31,794 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-26 02:37:31,796 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:37:31,948 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_364b61b2-03ac-4bbb-84bb-eb4839b894bf/bin/utaipan/witness.graphml [2019-11-26 02:37:31,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:37:31,950 INFO L168 Benchmark]: Toolchain (without parser) took 8159.62 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 364.9 MB). Free memory was 944.7 MB in the beginning and 984.5 MB in the end (delta: -39.7 MB). Peak memory consumption was 325.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:37:31,951 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:37:31,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -202.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:37:31,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.06 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 02:37:31,952 INFO L168 Benchmark]: Boogie Preprocessor took 56.05 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:37:31,952 INFO L168 Benchmark]: RCFGBuilder took 2231.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.4 MB in the end (delta: 228.0 MB). Peak memory consumption was 228.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:37:31,953 INFO L168 Benchmark]: TraceAbstraction took 4953.07 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.3 MB). Free memory was 912.4 MB in the beginning and 1.0 GB in the end (delta: -105.8 MB). Peak memory consumption was 83.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:37:31,953 INFO L168 Benchmark]: Witness Printer took 183.72 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 984.5 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:37:31,955 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 646.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -202.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 84.06 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. * Boogie Preprocessor took 56.05 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2231.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.4 MB in the end (delta: 228.0 MB). Peak memory consumption was 228.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4953.07 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.3 MB). Free memory was 912.4 MB in the beginning and 1.0 GB in the end (delta: -105.8 MB). Peak memory consumption was 83.5 MB. Max. memory is 11.5 GB. * Witness Printer took 183.72 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 984.5 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 472]: 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: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (a17 <= 8 && !(a11 == 1)) || (!(a28 == 8) && a17 <= 8) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (a17 <= 8 && !(a11 == 1)) || (!(a28 == 8) && a17 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Result: SAFE, OverallTime: 4.8s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 400 SDtfs, 649 SDslu, 34 SDs, 0 SdLazy, 1717 SolverSat, 460 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 331 GetRequests, 318 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1123occurred 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, 640 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 32 NumberOfFragments, 35 HoareAnnotationTreeSize, 3 FomulaSimplifications, 532 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 870 NumberOfCodeBlocks, 870 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1019 ConstructedInterpolants, 0 QuantifiedInterpolants, 251728 SizeOfPredicates, 0 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 519/527 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...