./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gsv2008.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/gsv2008.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/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 225f0ddf9f4fc2bb07a34316827f4c052bf2e72a ........................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:59:50,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:50,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:50,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:50,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:50,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:50,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:50,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:50,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:50,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:50,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:50,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:50,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:50,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:50,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:50,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:50,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:50,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:50,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:50,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:50,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:50,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:50,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:50,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:50,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:50,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:50,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:50,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:50,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:50,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:50,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:50,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:50,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:50,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:50,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:50,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:50,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:50,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:50,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:50,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:50,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:50,484 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:59:50,495 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:50,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:50,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:50,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:50,496 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:50,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:50,497 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:50,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:50,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:50,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:50,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:59:50,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:59:50,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:59:50,498 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:50,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:59:50,498 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:50,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:59:50,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:50,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:50,499 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:59:50,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:59:50,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:50,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:50,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:59:50,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:59:50,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:59:50,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:59:50,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:59:50,500 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/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/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 -> 225f0ddf9f4fc2bb07a34316827f4c052bf2e72a [2019-10-22 08:59:50,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:50,535 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:50,538 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:50,539 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:50,539 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:50,540 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/bin/uautomizer/../../sv-benchmarks/c/loop-lit/gsv2008.i [2019-10-22 08:59:50,584 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/bin/uautomizer/data/fc02d8010/50c0275b19e04e0c818206a9a0c0888d/FLAG5e6b1c02f [2019-10-22 08:59:50,940 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:50,940 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/sv-benchmarks/c/loop-lit/gsv2008.i [2019-10-22 08:59:50,946 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/bin/uautomizer/data/fc02d8010/50c0275b19e04e0c818206a9a0c0888d/FLAG5e6b1c02f [2019-10-22 08:59:50,956 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/bin/uautomizer/data/fc02d8010/50c0275b19e04e0c818206a9a0c0888d [2019-10-22 08:59:50,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:50,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:59:50,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:50,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:50,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:50,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:50" (1/1) ... [2019-10-22 08:59:50,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be24a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:50, skipping insertion in model container [2019-10-22 08:59:50,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:50" (1/1) ... [2019-10-22 08:59:50,976 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:50,989 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:51,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:51,116 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:51,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:51,195 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:51,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:51 WrapperNode [2019-10-22 08:59:51,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:51,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:51,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:59:51,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:59:51,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:51" (1/1) ... [2019-10-22 08:59:51,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:51" (1/1) ... [2019-10-22 08:59:51,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:51,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:51,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:51,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:51,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:51" (1/1) ... [2019-10-22 08:59:51,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:51" (1/1) ... [2019-10-22 08:59:51,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:51" (1/1) ... [2019-10-22 08:59:51,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:51" (1/1) ... [2019-10-22 08:59:51,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:51" (1/1) ... [2019-10-22 08:59:51,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:51" (1/1) ... [2019-10-22 08:59:51,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:51" (1/1) ... [2019-10-22 08:59:51,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:51,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:51,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:51,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:51,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/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 [2019-10-22 08:59:51,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:51,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:51,446 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:51,446 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:59:51,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:51 BoogieIcfgContainer [2019-10-22 08:59:51,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:51,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:59:51,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:59:51,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:59:51,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:59:50" (1/3) ... [2019-10-22 08:59:51,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f5e20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:51, skipping insertion in model container [2019-10-22 08:59:51,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:51" (2/3) ... [2019-10-22 08:59:51,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f5e20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:51, skipping insertion in model container [2019-10-22 08:59:51,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:51" (3/3) ... [2019-10-22 08:59:51,456 INFO L109 eAbstractionObserver]: Analyzing ICFG gsv2008.i [2019-10-22 08:59:51,468 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:59:51,476 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:59:51,486 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:59:51,511 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:59:51,512 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:59:51,512 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:59:51,512 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:51,512 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:51,512 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:59:51,513 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:51,513 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:59:51,529 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-10-22 08:59:51,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:59:51,535 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:51,536 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:59:51,538 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:51,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:51,543 INFO L82 PathProgramCache]: Analyzing trace with hash 922199370, now seen corresponding path program 1 times [2019-10-22 08:59:51,551 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:51,551 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369437539] [2019-10-22 08:59:51,551 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:51,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:51,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:51,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:51,655 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369437539] [2019-10-22 08:59:51,655 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:51,656 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:59:51,656 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249092527] [2019-10-22 08:59:51,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:59:51,661 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:51,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:59:51,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:59:51,677 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2019-10-22 08:59:51,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:51,693 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2019-10-22 08:59:51,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:59:51,695 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-10-22 08:59:51,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:51,703 INFO L225 Difference]: With dead ends: 19 [2019-10-22 08:59:51,703 INFO L226 Difference]: Without dead ends: 7 [2019-10-22 08:59:51,705 INFO L600 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 [2019-10-22 08:59:51,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-10-22 08:59:51,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-10-22 08:59:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-10-22 08:59:51,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-10-22 08:59:51,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6 [2019-10-22 08:59:51,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:51,727 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-10-22 08:59:51,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:59:51,728 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-10-22 08:59:51,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:59:51,728 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:51,728 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:59:51,729 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:51,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:51,729 INFO L82 PathProgramCache]: Analyzing trace with hash 922080206, now seen corresponding path program 1 times [2019-10-22 08:59:51,729 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:51,729 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203343895] [2019-10-22 08:59:51,729 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:51,730 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:51,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:51,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:51,761 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203343895] [2019-10-22 08:59:51,762 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:51,762 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:59:51,762 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53098701] [2019-10-22 08:59:51,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:59:51,763 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:51,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:59:51,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:51,764 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 3 states. [2019-10-22 08:59:51,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:51,774 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-10-22 08:59:51,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:59:51,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-10-22 08:59:51,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:51,775 INFO L225 Difference]: With dead ends: 12 [2019-10-22 08:59:51,775 INFO L226 Difference]: Without dead ends: 8 [2019-10-22 08:59:51,776 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:51,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-10-22 08:59:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-10-22 08:59:51,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-10-22 08:59:51,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-10-22 08:59:51,778 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-10-22 08:59:51,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:51,779 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-10-22 08:59:51,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:59:51,779 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-10-22 08:59:51,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:59:51,779 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:51,779 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:51,780 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:51,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:51,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1478619311, now seen corresponding path program 1 times [2019-10-22 08:59:51,780 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:51,780 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486508184] [2019-10-22 08:59:51,780 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:51,781 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:51,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:51,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:51,840 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486508184] [2019-10-22 08:59:51,841 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363547549] [2019-10-22 08:59:51,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:51,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 08:59:51,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:51,978 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:51,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:51,995 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:59:51,995 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2019-10-22 08:59:51,995 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971335474] [2019-10-22 08:59:51,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:59:51,995 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:51,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:59:51,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:59:51,996 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2019-10-22 08:59:52,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:52,041 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-10-22 08:59:52,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:59:52,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-10-22 08:59:52,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:52,042 INFO L225 Difference]: With dead ends: 8 [2019-10-22 08:59:52,042 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:59:52,042 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:59:52,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:59:52,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:59:52,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:59:52,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:59:52,043 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-10-22 08:59:52,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:52,043 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:52,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:59:52,044 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:59:52,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:59:52,244 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:52,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:59:52,265 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:59:52,265 INFO L439 ceAbstractionStarter]: At program point L15-2(lines 15 18) the Hoare annotation is: (or (<= (+ ULTIMATE.start_main_~x~0 2) ULTIMATE.start_main_~y~0) (<= (+ ULTIMATE.start_main_~x~0 50) 0)) [2019-10-22 08:59:52,266 INFO L443 ceAbstractionStarter]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2019-10-22 08:59:52,266 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-22 08:59:52,266 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:59:52,266 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:59:52,266 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-22 08:59:52,266 INFO L446 ceAbstractionStarter]: At program point L20(lines 10 21) the Hoare annotation is: true [2019-10-22 08:59:52,266 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-10-22 08:59:52,267 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-22 08:59:52,267 INFO L446 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-10-22 08:59:52,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:59:52 BoogieIcfgContainer [2019-10-22 08:59:52,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:59:52,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:52,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:52,281 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:52,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:51" (3/4) ... [2019-10-22 08:59:52,285 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:59:52,304 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 08:59:52,305 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:59:52,343 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cbf87bbc-0bc4-4f97-8824-9016df615b19/bin/uautomizer/witness.graphml [2019-10-22 08:59:52,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:52,346 INFO L168 Benchmark]: Toolchain (without parser) took 1386.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -146.3 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:52,346 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:52,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 941.8 MB in the beginning and 1.2 GB in the end (delta: -223.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:52,347 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.56 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: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:52,348 INFO L168 Benchmark]: Boogie Preprocessor took 20.49 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:52,348 INFO L168 Benchmark]: RCFGBuilder took 197.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:52,348 INFO L168 Benchmark]: TraceAbstraction took 831.79 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: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:52,349 INFO L168 Benchmark]: Witness Printer took 63.19 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:52,351 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 236.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 941.8 MB in the beginning and 1.2 GB in the end (delta: -223.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.56 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: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.49 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 197.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 831.79 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: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. * Witness Printer took 63.19 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x + 2 <= y || x + 50 <= 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 3 SDslu, 6 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 13 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 312 SizeOfPredicates, 4 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1/2 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...