./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/psyco/psyco_io_1.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_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/psyco/psyco_io_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69c831b1eda23dac6e2f4454b4feebfba511ade3 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:48:22,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:48:22,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:48:22,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:48:22,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:48:22,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:48:22,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:48:22,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:48:22,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:48:22,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:48:22,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:48:22,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:48:22,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:48:22,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:48:22,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:48:22,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:48:22,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:48:22,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:48:22,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:48:22,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:48:22,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:48:22,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:48:22,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:48:22,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:48:22,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:48:22,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:48:22,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:48:22,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:48:22,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:48:22,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:48:22,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:48:22,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:48:22,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:48:22,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:48:22,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:48:22,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:48:22,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:48:22,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:48:22,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:48:22,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:48:22,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:48:22,516 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:48:22,540 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:48:22,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:48:22,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:48:22,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:48:22,542 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:48:22,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:48:22,542 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:48:22,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:48:22,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:48:22,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:48:22,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:48:22,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:48:22,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:48:22,543 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:48:22,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:48:22,544 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:48:22,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:48:22,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:48:22,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:48:22,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:48:22,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:48:22,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:48:22,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:48:22,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:48:22,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:48:22,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:48:22,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:48:22,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:48:22,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69c831b1eda23dac6e2f4454b4feebfba511ade3 [2019-11-25 08:48:22,721 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:48:22,731 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:48:22,734 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:48:22,735 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:48:22,735 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:48:22,737 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer/../../sv-benchmarks/c/psyco/psyco_io_1.c [2019-11-25 08:48:22,796 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer/data/5a7ac1fc3/539534d2560c4f7089198bb372db8595/FLAGa9751dd61 [2019-11-25 08:48:23,205 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:48:23,207 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2639385a-8c5d-4f19-86fa-442813a183c9/sv-benchmarks/c/psyco/psyco_io_1.c [2019-11-25 08:48:23,219 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer/data/5a7ac1fc3/539534d2560c4f7089198bb372db8595/FLAGa9751dd61 [2019-11-25 08:48:23,616 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer/data/5a7ac1fc3/539534d2560c4f7089198bb372db8595 [2019-11-25 08:48:23,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:48:23,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:48:23,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:48:23,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:48:23,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:48:23,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:48:23" (1/1) ... [2019-11-25 08:48:23,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cbbb0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:23, skipping insertion in model container [2019-11-25 08:48:23,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:48:23" (1/1) ... [2019-11-25 08:48:23,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:48:23,679 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:48:23,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:48:23,959 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:48:23,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:48:24,009 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:48:24,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:24 WrapperNode [2019-11-25 08:48:24,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:48:24,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:48:24,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:48:24,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:48:24,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:24" (1/1) ... [2019-11-25 08:48:24,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:24" (1/1) ... [2019-11-25 08:48:24,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:48:24,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:48:24,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:48:24,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:48:24,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:24" (1/1) ... [2019-11-25 08:48:24,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:24" (1/1) ... [2019-11-25 08:48:24,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:24" (1/1) ... [2019-11-25 08:48:24,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:24" (1/1) ... [2019-11-25 08:48:24,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:24" (1/1) ... [2019-11-25 08:48:24,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:24" (1/1) ... [2019-11-25 08:48:24,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:24" (1/1) ... [2019-11-25 08:48:24,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:48:24,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:48:24,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:48:24,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:48:24,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:48:24,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:48:24,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:48:24,621 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:48:24,621 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 08:48:24,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:48:24 BoogieIcfgContainer [2019-11-25 08:48:24,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:48:24,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:48:24,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:48:24,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:48:24,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:48:23" (1/3) ... [2019-11-25 08:48:24,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb03b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:48:24, skipping insertion in model container [2019-11-25 08:48:24,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:48:24" (2/3) ... [2019-11-25 08:48:24,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb03b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:48:24, skipping insertion in model container [2019-11-25 08:48:24,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:48:24" (3/3) ... [2019-11-25 08:48:24,630 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_io_1.c [2019-11-25 08:48:24,638 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:48:24,645 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:48:24,655 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:48:24,689 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:48:24,689 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:48:24,690 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:48:24,690 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:48:24,691 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:48:24,691 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:48:24,691 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:48:24,694 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:48:24,707 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2019-11-25 08:48:24,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-25 08:48:24,717 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:48:24,718 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:24,718 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:48:24,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:24,722 INFO L82 PathProgramCache]: Analyzing trace with hash 352571312, now seen corresponding path program 1 times [2019-11-25 08:48:24,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:24,730 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53108780] [2019-11-25 08:48:24,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:48:24,845 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53108780] [2019-11-25 08:48:24,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:24,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:48:24,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691167883] [2019-11-25 08:48:24,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:48:24,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:48:24,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:48:24,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:48:24,862 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2019-11-25 08:48:24,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:48:24,882 INFO L93 Difference]: Finished difference Result 130 states and 244 transitions. [2019-11-25 08:48:24,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:48:24,884 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-25 08:48:24,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:48:24,895 INFO L225 Difference]: With dead ends: 130 [2019-11-25 08:48:24,895 INFO L226 Difference]: Without dead ends: 57 [2019-11-25 08:48:24,898 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:48:24,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-11-25 08:48:24,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-11-25 08:48:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-11-25 08:48:24,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 87 transitions. [2019-11-25 08:48:24,933 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 87 transitions. Word has length 9 [2019-11-25 08:48:24,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:48:24,934 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 87 transitions. [2019-11-25 08:48:24,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:48:24,934 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 87 transitions. [2019-11-25 08:48:24,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:48:24,935 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:48:24,935 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:24,936 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:48:24,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:24,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1422697760, now seen corresponding path program 1 times [2019-11-25 08:48:24,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:24,937 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250973291] [2019-11-25 08:48:24,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:24,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:48:24,976 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250973291] [2019-11-25 08:48:24,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:24,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:48:24,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237650679] [2019-11-25 08:48:24,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:48:24,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:48:24,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:48:24,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:48:24,979 INFO L87 Difference]: Start difference. First operand 57 states and 87 transitions. Second operand 3 states. [2019-11-25 08:48:25,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:48:25,040 INFO L93 Difference]: Finished difference Result 115 states and 176 transitions. [2019-11-25 08:48:25,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:48:25,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-25 08:48:25,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:48:25,042 INFO L225 Difference]: With dead ends: 115 [2019-11-25 08:48:25,042 INFO L226 Difference]: Without dead ends: 60 [2019-11-25 08:48:25,043 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 [2019-11-25 08:48:25,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-11-25 08:48:25,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-11-25 08:48:25,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-11-25 08:48:25,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 90 transitions. [2019-11-25 08:48:25,051 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 90 transitions. Word has length 10 [2019-11-25 08:48:25,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:48:25,051 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 90 transitions. [2019-11-25 08:48:25,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:48:25,051 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 90 transitions. [2019-11-25 08:48:25,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-25 08:48:25,052 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:48:25,052 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:25,053 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:48:25,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:25,053 INFO L82 PathProgramCache]: Analyzing trace with hash 658032531, now seen corresponding path program 1 times [2019-11-25 08:48:25,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:25,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011754035] [2019-11-25 08:48:25,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:25,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:48:25,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011754035] [2019-11-25 08:48:25,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:25,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:48:25,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36991902] [2019-11-25 08:48:25,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:48:25,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:48:25,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:48:25,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:48:25,097 INFO L87 Difference]: Start difference. First operand 60 states and 90 transitions. Second operand 3 states. [2019-11-25 08:48:25,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:48:25,142 INFO L93 Difference]: Finished difference Result 109 states and 165 transitions. [2019-11-25 08:48:25,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:48:25,142 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-25 08:48:25,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:48:25,143 INFO L225 Difference]: With dead ends: 109 [2019-11-25 08:48:25,144 INFO L226 Difference]: Without dead ends: 52 [2019-11-25 08:48:25,144 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 [2019-11-25 08:48:25,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-25 08:48:25,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-25 08:48:25,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-25 08:48:25,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 76 transitions. [2019-11-25 08:48:25,151 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 76 transitions. Word has length 15 [2019-11-25 08:48:25,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:48:25,151 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 76 transitions. [2019-11-25 08:48:25,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:48:25,151 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 76 transitions. [2019-11-25 08:48:25,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-25 08:48:25,152 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:48:25,153 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:25,153 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:48:25,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:25,153 INFO L82 PathProgramCache]: Analyzing trace with hash 2017993163, now seen corresponding path program 1 times [2019-11-25 08:48:25,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:25,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730885367] [2019-11-25 08:48:25,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:48:25,215 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730885367] [2019-11-25 08:48:25,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:25,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:48:25,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562923022] [2019-11-25 08:48:25,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:48:25,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:48:25,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:48:25,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:48:25,217 INFO L87 Difference]: Start difference. First operand 52 states and 76 transitions. Second operand 3 states. [2019-11-25 08:48:25,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:48:25,283 INFO L93 Difference]: Finished difference Result 136 states and 206 transitions. [2019-11-25 08:48:25,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:48:25,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-25 08:48:25,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:48:25,285 INFO L225 Difference]: With dead ends: 136 [2019-11-25 08:48:25,285 INFO L226 Difference]: Without dead ends: 90 [2019-11-25 08:48:25,286 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 [2019-11-25 08:48:25,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-25 08:48:25,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2019-11-25 08:48:25,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-25 08:48:25,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 128 transitions. [2019-11-25 08:48:25,296 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 128 transitions. Word has length 20 [2019-11-25 08:48:25,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:48:25,296 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 128 transitions. [2019-11-25 08:48:25,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:48:25,297 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 128 transitions. [2019-11-25 08:48:25,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-25 08:48:25,298 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:48:25,298 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:25,298 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:48:25,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:25,298 INFO L82 PathProgramCache]: Analyzing trace with hash 398483104, now seen corresponding path program 1 times [2019-11-25 08:48:25,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:25,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633842936] [2019-11-25 08:48:25,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:48:25,353 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633842936] [2019-11-25 08:48:25,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:25,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:48:25,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657044200] [2019-11-25 08:48:25,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:48:25,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:48:25,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:48:25,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:48:25,355 INFO L87 Difference]: Start difference. First operand 87 states and 128 transitions. Second operand 3 states. [2019-11-25 08:48:25,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:48:25,420 INFO L93 Difference]: Finished difference Result 176 states and 258 transitions. [2019-11-25 08:48:25,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:48:25,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-11-25 08:48:25,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:48:25,424 INFO L225 Difference]: With dead ends: 176 [2019-11-25 08:48:25,424 INFO L226 Difference]: Without dead ends: 97 [2019-11-25 08:48:25,425 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 [2019-11-25 08:48:25,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-25 08:48:25,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2019-11-25 08:48:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-11-25 08:48:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 136 transitions. [2019-11-25 08:48:25,440 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 136 transitions. Word has length 21 [2019-11-25 08:48:25,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:48:25,440 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 136 transitions. [2019-11-25 08:48:25,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:48:25,440 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 136 transitions. [2019-11-25 08:48:25,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-25 08:48:25,442 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:48:25,442 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:25,442 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:48:25,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:25,442 INFO L82 PathProgramCache]: Analyzing trace with hash -162530645, now seen corresponding path program 1 times [2019-11-25 08:48:25,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:25,446 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012269088] [2019-11-25 08:48:25,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:25,536 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:48:25,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012269088] [2019-11-25 08:48:25,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:25,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:48:25,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122344255] [2019-11-25 08:48:25,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:48:25,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:48:25,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:48:25,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:48:25,538 INFO L87 Difference]: Start difference. First operand 95 states and 136 transitions. Second operand 3 states. [2019-11-25 08:48:25,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:48:25,561 INFO L93 Difference]: Finished difference Result 160 states and 230 transitions. [2019-11-25 08:48:25,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:48:25,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-11-25 08:48:25,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:48:25,563 INFO L225 Difference]: With dead ends: 160 [2019-11-25 08:48:25,563 INFO L226 Difference]: Without dead ends: 73 [2019-11-25 08:48:25,564 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 [2019-11-25 08:48:25,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-11-25 08:48:25,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-11-25 08:48:25,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-11-25 08:48:25,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2019-11-25 08:48:25,571 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 32 [2019-11-25 08:48:25,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:48:25,572 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2019-11-25 08:48:25,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:48:25,572 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2019-11-25 08:48:25,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-25 08:48:25,573 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:48:25,573 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:48:25,573 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:48:25,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:48:25,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1521721792, now seen corresponding path program 1 times [2019-11-25 08:48:25,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:48:25,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229122326] [2019-11-25 08:48:25,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:48:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:48:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:48:25,684 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229122326] [2019-11-25 08:48:25,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:48:25,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:48:25,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671435931] [2019-11-25 08:48:25,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:48:25,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:48:25,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:48:25,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:48:25,686 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand 4 states. [2019-11-25 08:48:25,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:48:25,733 INFO L93 Difference]: Finished difference Result 76 states and 104 transitions. [2019-11-25 08:48:25,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:48:25,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-11-25 08:48:25,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:48:25,734 INFO L225 Difference]: With dead ends: 76 [2019-11-25 08:48:25,734 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:48:25,735 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:48:25,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:48:25,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:48:25,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:48:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:48:25,736 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-25 08:48:25,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:48:25,736 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:48:25,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:48:25,736 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:48:25,736 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:48:25,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:48:25,851 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 47) no Hoare annotation was computed. [2019-11-25 08:48:25,851 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:48:25,852 INFO L444 ceAbstractionStarter]: For program point L86(lines 86 101) no Hoare annotation was computed. [2019-11-25 08:48:25,852 INFO L444 ceAbstractionStarter]: For program point L53(lines 53 104) no Hoare annotation was computed. [2019-11-25 08:48:25,852 INFO L444 ceAbstractionStarter]: For program point L202(lines 202 217) no Hoare annotation was computed. [2019-11-25 08:48:25,852 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 85) no Hoare annotation was computed. [2019-11-25 08:48:25,852 INFO L444 ceAbstractionStarter]: For program point L318(lines 318 333) no Hoare annotation was computed. [2019-11-25 08:48:25,852 INFO L444 ceAbstractionStarter]: For program point L186(lines 186 201) no Hoare annotation was computed. [2019-11-25 08:48:25,852 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 69) no Hoare annotation was computed. [2019-11-25 08:48:25,853 INFO L440 ceAbstractionStarter]: At program point L335(lines 23 339) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~this_sink~0 0))) (or (and .cse0 (= ULTIMATE.start_main_~q~0 2)) (and (or (<= (+ ULTIMATE.start_main_~this_sink~0 1) 0) (<= 1 ULTIMATE.start_main_~this_sink~0)) (<= 3 ULTIMATE.start_main_~q~0)) (and .cse0 (= ULTIMATE.start_main_~q~0 0)))) [2019-11-25 08:48:25,853 INFO L444 ceAbstractionStarter]: For program point L302(lines 302 317) no Hoare annotation was computed. [2019-11-25 08:48:25,853 INFO L444 ceAbstractionStarter]: For program point L170(lines 170 185) no Hoare annotation was computed. [2019-11-25 08:48:25,853 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 301) no Hoare annotation was computed. [2019-11-25 08:48:25,853 INFO L444 ceAbstractionStarter]: For program point L154(lines 154 169) no Hoare annotation was computed. [2019-11-25 08:48:25,853 INFO L444 ceAbstractionStarter]: For program point L88(lines 88 99) no Hoare annotation was computed. [2019-11-25 08:48:25,854 INFO L444 ceAbstractionStarter]: For program point L270(lines 270 285) no Hoare annotation was computed. [2019-11-25 08:48:25,854 INFO L444 ceAbstractionStarter]: For program point L204(lines 204 215) no Hoare annotation was computed. [2019-11-25 08:48:25,854 INFO L444 ceAbstractionStarter]: For program point L138(lines 138 153) no Hoare annotation was computed. [2019-11-25 08:48:25,854 INFO L444 ceAbstractionStarter]: For program point L105(lines 105 220) no Hoare annotation was computed. [2019-11-25 08:48:25,854 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 83) no Hoare annotation was computed. [2019-11-25 08:48:25,854 INFO L444 ceAbstractionStarter]: For program point L320(lines 320 331) no Hoare annotation was computed. [2019-11-25 08:48:25,854 INFO L444 ceAbstractionStarter]: For program point L254(lines 254 269) no Hoare annotation was computed. [2019-11-25 08:48:25,854 INFO L444 ceAbstractionStarter]: For program point L221(lines 221 336) no Hoare annotation was computed. [2019-11-25 08:48:25,854 INFO L444 ceAbstractionStarter]: For program point L188(lines 188 199) no Hoare annotation was computed. [2019-11-25 08:48:25,854 INFO L444 ceAbstractionStarter]: For program point L122(lines 122 137) no Hoare annotation was computed. [2019-11-25 08:48:25,854 INFO L444 ceAbstractionStarter]: For program point L56(lines 56 67) no Hoare annotation was computed. [2019-11-25 08:48:25,855 INFO L440 ceAbstractionStarter]: At program point L23-2(lines 23 339) the Hoare annotation is: (or (and (or (<= (+ ULTIMATE.start_main_~this_sink~0 1) 0) (<= 1 ULTIMATE.start_main_~this_sink~0)) (<= 3 ULTIMATE.start_main_~q~0)) (and (= ULTIMATE.start_main_~this_sink~0 0) (= ULTIMATE.start_main_~q~0 0))) [2019-11-25 08:48:25,855 INFO L444 ceAbstractionStarter]: For program point L23-3(lines 23 339) no Hoare annotation was computed. [2019-11-25 08:48:25,855 INFO L444 ceAbstractionStarter]: For program point L304(lines 304 315) no Hoare annotation was computed. [2019-11-25 08:48:25,855 INFO L444 ceAbstractionStarter]: For program point L238(lines 238 253) no Hoare annotation was computed. [2019-11-25 08:48:25,855 INFO L444 ceAbstractionStarter]: For program point L172(lines 172 183) no Hoare annotation was computed. [2019-11-25 08:48:25,855 INFO L444 ceAbstractionStarter]: For program point L106(lines 106 121) no Hoare annotation was computed. [2019-11-25 08:48:25,855 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 42) no Hoare annotation was computed. [2019-11-25 08:48:25,856 INFO L444 ceAbstractionStarter]: For program point L288(lines 288 299) no Hoare annotation was computed. [2019-11-25 08:48:25,856 INFO L444 ceAbstractionStarter]: For program point L222(lines 222 237) no Hoare annotation was computed. [2019-11-25 08:48:25,856 INFO L444 ceAbstractionStarter]: For program point L156(lines 156 167) no Hoare annotation was computed. [2019-11-25 08:48:25,856 INFO L444 ceAbstractionStarter]: For program point L272(lines 272 283) no Hoare annotation was computed. [2019-11-25 08:48:25,856 INFO L444 ceAbstractionStarter]: For program point L140(lines 140 151) no Hoare annotation was computed. [2019-11-25 08:48:25,856 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:48:25,856 INFO L444 ceAbstractionStarter]: For program point L256(lines 256 267) no Hoare annotation was computed. [2019-11-25 08:48:25,856 INFO L444 ceAbstractionStarter]: For program point L124(lines 124 135) no Hoare annotation was computed. [2019-11-25 08:48:25,857 INFO L444 ceAbstractionStarter]: For program point L240(lines 240 251) no Hoare annotation was computed. [2019-11-25 08:48:25,857 INFO L444 ceAbstractionStarter]: For program point L108(lines 108 119) no Hoare annotation was computed. [2019-11-25 08:48:25,857 INFO L444 ceAbstractionStarter]: For program point L224(lines 224 235) no Hoare annotation was computed. [2019-11-25 08:48:25,857 INFO L444 ceAbstractionStarter]: For program point L92(lines 92 94) no Hoare annotation was computed. [2019-11-25 08:48:25,857 INFO L444 ceAbstractionStarter]: For program point L208(lines 208 210) no Hoare annotation was computed. [2019-11-25 08:48:25,857 INFO L444 ceAbstractionStarter]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-11-25 08:48:25,857 INFO L444 ceAbstractionStarter]: For program point L324(lines 324 326) no Hoare annotation was computed. [2019-11-25 08:48:25,857 INFO L444 ceAbstractionStarter]: For program point L192(lines 192 194) no Hoare annotation was computed. [2019-11-25 08:48:25,857 INFO L444 ceAbstractionStarter]: For program point L60(lines 60 62) no Hoare annotation was computed. [2019-11-25 08:48:25,858 INFO L444 ceAbstractionStarter]: For program point L308(lines 308 310) no Hoare annotation was computed. [2019-11-25 08:48:25,858 INFO L444 ceAbstractionStarter]: For program point L176(lines 176 178) no Hoare annotation was computed. [2019-11-25 08:48:25,858 INFO L440 ceAbstractionStarter]: At program point L325(lines 13 344) the Hoare annotation is: false [2019-11-25 08:48:25,858 INFO L444 ceAbstractionStarter]: For program point L292(lines 292 294) no Hoare annotation was computed. [2019-11-25 08:48:25,858 INFO L444 ceAbstractionStarter]: For program point L160(lines 160 162) no Hoare annotation was computed. [2019-11-25 08:48:25,858 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:48:25,858 INFO L444 ceAbstractionStarter]: For program point L276(lines 276 278) no Hoare annotation was computed. [2019-11-25 08:48:25,858 INFO L444 ceAbstractionStarter]: For program point L144(lines 144 146) no Hoare annotation was computed. [2019-11-25 08:48:25,858 INFO L444 ceAbstractionStarter]: For program point L260(lines 260 262) no Hoare annotation was computed. [2019-11-25 08:48:25,859 INFO L444 ceAbstractionStarter]: For program point L128(lines 128 130) no Hoare annotation was computed. [2019-11-25 08:48:25,859 INFO L444 ceAbstractionStarter]: For program point L244(lines 244 246) no Hoare annotation was computed. [2019-11-25 08:48:25,859 INFO L444 ceAbstractionStarter]: For program point L112(lines 112 114) no Hoare annotation was computed. [2019-11-25 08:48:25,859 INFO L447 ceAbstractionStarter]: At program point L13(lines 13 344) the Hoare annotation is: true [2019-11-25 08:48:25,859 INFO L444 ceAbstractionStarter]: For program point L228(lines 228 230) no Hoare annotation was computed. [2019-11-25 08:48:25,859 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:48:25,859 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 343) no Hoare annotation was computed. [2019-11-25 08:48:25,859 INFO L444 ceAbstractionStarter]: For program point L33(lines 33 52) no Hoare annotation was computed. [2019-11-25 08:48:25,860 INFO L444 ceAbstractionStarter]: For program point L34(lines 34 49) no Hoare annotation was computed. [2019-11-25 08:48:25,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:48:25 BoogieIcfgContainer [2019-11-25 08:48:25,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:48:25,874 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:48:25,874 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:48:25,874 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:48:25,875 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:48:24" (3/4) ... [2019-11-25 08:48:25,878 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:48:25,897 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:48:25,897 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-25 08:48:25,950 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2639385a-8c5d-4f19-86fa-442813a183c9/bin/uautomizer/witness.graphml [2019-11-25 08:48:25,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:48:25,952 INFO L168 Benchmark]: Toolchain (without parser) took 2331.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 951.5 MB in the beginning and 1.0 GB in the end (delta: -88.4 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:25,953 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:48:25,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 951.5 MB in the beginning and 1.2 GB in the end (delta: -235.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:25,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:25,954 INFO L168 Benchmark]: Boogie Preprocessor took 26.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:48:25,955 INFO L168 Benchmark]: RCFGBuilder took 529.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:25,955 INFO L168 Benchmark]: TraceAbstraction took 1250.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.1 MB). Peak memory consumption was 102.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:25,956 INFO L168 Benchmark]: Witness Printer took 76.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:25,958 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 391.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 951.5 MB in the beginning and 1.2 GB in the end (delta: -235.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 529.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1250.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.1 MB). Peak memory consumption was 102.1 MB. Max. memory is 11.5 GB. * Witness Printer took 76.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 343]: 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: 23]: Loop Invariant Derived loop invariant: ((this_sink + 1 <= 0 || 1 <= this_sink) && 3 <= q) || (this_sink == 0 && q == 0) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((this_sink == 0 && q == 2) || ((this_sink + 1 <= 0 || 1 <= this_sink) && 3 <= q)) || (this_sink == 0 && q == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 68 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 520 SDtfs, 190 SDslu, 262 SDs, 0 SdLazy, 88 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 12 NumberOfFragments, 51 HoareAnnotationTreeSize, 4 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 7219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 27/27 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...