./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/terminator_03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/terminator_03-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/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 99b8f1cc5bec62c63bdabd96b82a49433aa34505 ............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:47:38,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:47:38,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:47:38,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:47:38,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:47:38,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:47:38,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:47:38,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:47:38,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:47:38,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:47:38,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:47:38,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:47:38,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:47:38,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:47:38,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:47:38,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:47:38,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:47:38,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:47:38,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:47:38,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:47:38,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:47:38,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:47:38,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:47:38,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:47:38,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:47:38,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:47:38,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:47:38,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:47:38,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:47:38,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:47:38,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:47:38,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:47:38,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:47:38,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:47:38,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:47:38,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:47:38,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:47:38,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:47:38,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:47:38,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:47:38,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:47:38,530 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 02:47:38,544 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:47:38,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:47:38,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:47:38,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:47:38,546 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:47:38,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:47:38,546 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:47:38,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:47:38,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:47:38,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:47:38,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 02:47:38,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 02:47:38,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 02:47:38,548 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:47:38,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:47:38,548 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:47:38,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 02:47:38,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:47:38,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:47:38,549 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 02:47:38,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 02:47:38,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:47:38,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:47:38,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 02:47:38,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 02:47:38,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:47:38,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 02:47:38,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 02:47:38,552 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_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/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 -> 99b8f1cc5bec62c63bdabd96b82a49433aa34505 [2019-11-20 02:47:38,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:47:38,707 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:47:38,712 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:47:38,719 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:47:38,720 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:47:38,721 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/bin/uautomizer/../../sv-benchmarks/c/loops/terminator_03-1.c [2019-11-20 02:47:38,786 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/bin/uautomizer/data/0107fcdc3/b1b325cc0aa748dc909f1f88514ede33/FLAG99526b17a [2019-11-20 02:47:39,153 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:47:39,153 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/sv-benchmarks/c/loops/terminator_03-1.c [2019-11-20 02:47:39,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/bin/uautomizer/data/0107fcdc3/b1b325cc0aa748dc909f1f88514ede33/FLAG99526b17a [2019-11-20 02:47:39,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/bin/uautomizer/data/0107fcdc3/b1b325cc0aa748dc909f1f88514ede33 [2019-11-20 02:47:39,172 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:47:39,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:47:39,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:47:39,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:47:39,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:47:39,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:47:39" (1/1) ... [2019-11-20 02:47:39,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10479bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:47:39, skipping insertion in model container [2019-11-20 02:47:39,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:47:39" (1/1) ... [2019-11-20 02:47:39,188 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:47:39,204 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:47:39,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:47:39,352 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:47:39,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:47:39,434 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:47:39,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:47:39 WrapperNode [2019-11-20 02:47:39,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:47:39,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:47:39,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:47:39,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:47:39,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:47:39" (1/1) ... [2019-11-20 02:47:39,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:47:39" (1/1) ... [2019-11-20 02:47:39,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:47:39,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:47:39,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:47:39,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:47:39,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:47:39" (1/1) ... [2019-11-20 02:47:39,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:47:39" (1/1) ... [2019-11-20 02:47:39,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:47:39" (1/1) ... [2019-11-20 02:47:39,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:47:39" (1/1) ... [2019-11-20 02:47:39,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:47:39" (1/1) ... [2019-11-20 02:47:39,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:47:39" (1/1) ... [2019-11-20 02:47:39,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:47:39" (1/1) ... [2019-11-20 02:47:39,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:47:39,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:47:39,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:47:39,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:47:39,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:47:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/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 [2019-11-20 02:47:39,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:47:39,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:47:39,722 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:47:39,722 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 02:47:39,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:47:39 BoogieIcfgContainer [2019-11-20 02:47:39,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:47:39,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 02:47:39,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 02:47:39,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 02:47:39,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:47:39" (1/3) ... [2019-11-20 02:47:39,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404a82ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:47:39, skipping insertion in model container [2019-11-20 02:47:39,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:47:39" (2/3) ... [2019-11-20 02:47:39,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404a82ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:47:39, skipping insertion in model container [2019-11-20 02:47:39,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:47:39" (3/3) ... [2019-11-20 02:47:39,731 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_03-1.c [2019-11-20 02:47:39,741 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 02:47:39,747 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 02:47:39,764 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 02:47:39,796 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 02:47:39,796 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 02:47:39,797 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 02:47:39,797 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:47:39,797 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:47:39,797 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 02:47:39,797 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:47:39,798 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 02:47:39,815 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-20 02:47:39,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 02:47:39,822 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:47:39,822 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 02:47:39,823 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:47:39,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:47:39,829 INFO L82 PathProgramCache]: Analyzing trace with hash 30108868, now seen corresponding path program 1 times [2019-11-20 02:47:39,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:47:39,838 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676538017] [2019-11-20 02:47:39,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:47:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:47:40,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:47:40,029 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676538017] [2019-11-20 02:47:40,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:47:40,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 02:47:40,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462947518] [2019-11-20 02:47:40,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 02:47:40,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:47:40,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 02:47:40,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:47:40,074 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 4 states. [2019-11-20 02:47:40,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:47:40,130 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2019-11-20 02:47:40,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 02:47:40,132 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-20 02:47:40,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:47:40,142 INFO L225 Difference]: With dead ends: 25 [2019-11-20 02:47:40,142 INFO L226 Difference]: Without dead ends: 7 [2019-11-20 02:47:40,145 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 [2019-11-20 02:47:40,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-11-20 02:47:40,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-20 02:47:40,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 02:47:40,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-11-20 02:47:40,201 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-11-20 02:47:40,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:47:40,219 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-11-20 02:47:40,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 02:47:40,219 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-11-20 02:47:40,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 02:47:40,220 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:47:40,220 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 02:47:40,220 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:47:40,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:47:40,221 INFO L82 PathProgramCache]: Analyzing trace with hash 920174575, now seen corresponding path program 1 times [2019-11-20 02:47:40,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:47:40,221 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996682545] [2019-11-20 02:47:40,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:47:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:47:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:47:40,263 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:47:40,263 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 02:47:40,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 02:47:40 BoogieIcfgContainer [2019-11-20 02:47:40,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 02:47:40,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:47:40,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:47:40,282 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:47:40,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:47:39" (3/4) ... [2019-11-20 02:47:40,284 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 02:47:40,328 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_de60f8b9-10d8-42a7-b5c3-1cd3d7115355/bin/uautomizer/witness.graphml [2019-11-20 02:47:40,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:47:40,334 INFO L168 Benchmark]: Toolchain (without parser) took 1157.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -144.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:47:40,336 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:47:40,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 02:47:40,341 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.49 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. [2019-11-20 02:47:40,342 INFO L168 Benchmark]: Boogie Preprocessor took 24.61 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 02:47:40,344 INFO L168 Benchmark]: RCFGBuilder took 234.41 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 02:47:40,344 INFO L168 Benchmark]: TraceAbstraction took 557.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-20 02:47:40,347 INFO L168 Benchmark]: Witness Printer took 47.61 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:47:40,350 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 259.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.49 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 24.61 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 234.41 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 557.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Witness Printer took 47.61 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: 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: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] int x=__VERIFIER_nondet_int(); [L14] int y=__VERIFIER_nondet_int(); [L16] COND TRUE y>0 [L18] COND FALSE !(x<100) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 12 SDslu, 13 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 incorrect! Received shutdown request...