./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/terminator_02-2.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_830588b5-2342-4bf8-b09f-cf2a3a362a17/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_830588b5-2342-4bf8-b09f-cf2a3a362a17/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_830588b5-2342-4bf8-b09f-cf2a3a362a17/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_830588b5-2342-4bf8-b09f-cf2a3a362a17/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/terminator_02-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_830588b5-2342-4bf8-b09f-cf2a3a362a17/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_830588b5-2342-4bf8-b09f-cf2a3a362a17/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 a06ba721ade3e36e091d6046e7f548a6b0c91e10 ............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 00:07:13,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:07:13,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:07:13,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:07:13,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:07:13,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:07:13,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:07:13,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:07:13,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:07:13,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:07:13,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:07:13,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:07:13,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:07:13,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:07:13,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:07:13,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:07:13,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:07:13,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:07:13,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:07:13,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:07:13,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:07:13,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:07:13,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:07:13,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:07:13,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:07:13,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:07:13,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:07:13,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:07:13,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:07:13,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:07:13,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:07:13,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:07:13,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:07:13,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:07:13,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:07:13,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:07:13,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:07:13,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:07:13,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:07:13,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:07:13,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:07:13,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_830588b5-2342-4bf8-b09f-cf2a3a362a17/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 00:07:13,307 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:07:13,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:07:13,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:07:13,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:07:13,320 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:07:13,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:07:13,321 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:07:13,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:07:13,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:07:13,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:07:13,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:07:13,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:07:13,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:07:13,323 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:07:13,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:07:13,323 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:07:13,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:07:13,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:07:13,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:07:13,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:07:13,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:07:13,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:07:13,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:07:13,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:07:13,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:07:13,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:07:13,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 00:07:13,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:07:13,327 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_830588b5-2342-4bf8-b09f-cf2a3a362a17/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 -> a06ba721ade3e36e091d6046e7f548a6b0c91e10 [2019-11-20 00:07:13,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:07:13,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:07:13,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:07:13,523 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:07:13,524 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:07:13,525 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_830588b5-2342-4bf8-b09f-cf2a3a362a17/bin/uautomizer/../../sv-benchmarks/c/loops/terminator_02-2.c [2019-11-20 00:07:13,586 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_830588b5-2342-4bf8-b09f-cf2a3a362a17/bin/uautomizer/data/54dfaea2b/7f155b0b0fab4c7ba64b3fa3fe1b824e/FLAG963db737d [2019-11-20 00:07:13,993 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:07:13,994 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_830588b5-2342-4bf8-b09f-cf2a3a362a17/sv-benchmarks/c/loops/terminator_02-2.c [2019-11-20 00:07:14,000 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_830588b5-2342-4bf8-b09f-cf2a3a362a17/bin/uautomizer/data/54dfaea2b/7f155b0b0fab4c7ba64b3fa3fe1b824e/FLAG963db737d [2019-11-20 00:07:14,392 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_830588b5-2342-4bf8-b09f-cf2a3a362a17/bin/uautomizer/data/54dfaea2b/7f155b0b0fab4c7ba64b3fa3fe1b824e [2019-11-20 00:07:14,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:07:14,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:07:14,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:07:14,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:07:14,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:07:14,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:07:14" (1/1) ... [2019-11-20 00:07:14,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@590320ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:14, skipping insertion in model container [2019-11-20 00:07:14,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:07:14" (1/1) ... [2019-11-20 00:07:14,410 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:07:14,424 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:07:14,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:07:14,579 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:07:14,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:07:14,674 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:07:14,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:14 WrapperNode [2019-11-20 00:07:14,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:07:14,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:07:14,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:07:14,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:07:14,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:14" (1/1) ... [2019-11-20 00:07:14,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:14" (1/1) ... [2019-11-20 00:07:14,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:07:14,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:07:14,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:07:14,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:07:14,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:14" (1/1) ... [2019-11-20 00:07:14,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:14" (1/1) ... [2019-11-20 00:07:14,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:14" (1/1) ... [2019-11-20 00:07:14,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:14" (1/1) ... [2019-11-20 00:07:14,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:14" (1/1) ... [2019-11-20 00:07:14,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:14" (1/1) ... [2019-11-20 00:07:14,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:14" (1/1) ... [2019-11-20 00:07:14,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:07:14,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:07:14,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:07:14,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:07:14,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_830588b5-2342-4bf8-b09f-cf2a3a362a17/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 00:07:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:07:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:07:15,020 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:07:15,020 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 00:07:15,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:07:15 BoogieIcfgContainer [2019-11-20 00:07:15,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:07:15,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:07:15,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:07:15,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:07:15,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:07:14" (1/3) ... [2019-11-20 00:07:15,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a7bdf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:07:15, skipping insertion in model container [2019-11-20 00:07:15,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:14" (2/3) ... [2019-11-20 00:07:15,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a7bdf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:07:15, skipping insertion in model container [2019-11-20 00:07:15,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:07:15" (3/3) ... [2019-11-20 00:07:15,029 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_02-2.c [2019-11-20 00:07:15,037 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:07:15,043 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 00:07:15,053 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 00:07:15,076 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:07:15,076 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:07:15,076 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:07:15,076 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:07:15,076 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:07:15,076 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:07:15,076 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:07:15,077 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:07:15,090 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-20 00:07:15,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 00:07:15,095 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:07:15,095 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:07:15,096 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:07:15,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:15,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1514197582, now seen corresponding path program 1 times [2019-11-20 00:07:15,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:15,110 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922714202] [2019-11-20 00:07:15,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:15,211 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 00:07:15,212 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922714202] [2019-11-20 00:07:15,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:07:15,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 00:07:15,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133508796] [2019-11-20 00:07:15,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 00:07:15,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:07:15,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 00:07:15,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:07:15,233 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2019-11-20 00:07:15,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:07:15,249 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-11-20 00:07:15,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:07:15,250 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-20 00:07:15,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:07:15,258 INFO L225 Difference]: With dead ends: 23 [2019-11-20 00:07:15,258 INFO L226 Difference]: Without dead ends: 11 [2019-11-20 00:07:15,261 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 [2019-11-20 00:07:15,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-20 00:07:15,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-20 00:07:15,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 00:07:15,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-11-20 00:07:15,292 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 9 [2019-11-20 00:07:15,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:07:15,293 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-11-20 00:07:15,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 00:07:15,293 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-11-20 00:07:15,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 00:07:15,293 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:07:15,293 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:07:15,294 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:07:15,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:15,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1513899672, now seen corresponding path program 1 times [2019-11-20 00:07:15,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:15,294 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448398843] [2019-11-20 00:07:15,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:15,518 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 00:07:15,519 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448398843] [2019-11-20 00:07:15,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:07:15,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 00:07:15,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270885803] [2019-11-20 00:07:15,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 00:07:15,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:07:15,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 00:07:15,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 00:07:15,522 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 5 states. [2019-11-20 00:07:15,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:07:15,606 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-11-20 00:07:15,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 00:07:15,608 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-20 00:07:15,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:07:15,608 INFO L225 Difference]: With dead ends: 16 [2019-11-20 00:07:15,608 INFO L226 Difference]: Without dead ends: 12 [2019-11-20 00:07:15,609 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 00:07:15,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-20 00:07:15,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-20 00:07:15,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 00:07:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-11-20 00:07:15,612 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2019-11-20 00:07:15,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:07:15,612 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-11-20 00:07:15,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 00:07:15,613 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-11-20 00:07:15,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 00:07:15,613 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:07:15,613 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:07:15,613 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:07:15,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:15,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1084138147, now seen corresponding path program 1 times [2019-11-20 00:07:15,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:15,614 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602318495] [2019-11-20 00:07:15,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:15,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 00:07:15,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602318495] [2019-11-20 00:07:15,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:07:15,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 00:07:15,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73349785] [2019-11-20 00:07:15,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 00:07:15,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:07:15,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 00:07:15,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 00:07:15,661 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 4 states. [2019-11-20 00:07:15,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:07:15,690 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-11-20 00:07:15,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 00:07:15,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-20 00:07:15,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:07:15,691 INFO L225 Difference]: With dead ends: 12 [2019-11-20 00:07:15,691 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 00:07:15,691 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 00:07:15,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 00:07:15,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 00:07:15,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 00:07:15,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 00:07:15,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-20 00:07:15,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:07:15,692 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:07:15,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 00:07:15,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 00:07:15,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 00:07:15,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 00:07:15,708 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 00:07:15,708 INFO L444 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-11-20 00:07:15,708 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 21 30) no Hoare annotation was computed. [2019-11-20 00:07:15,708 INFO L444 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-11-20 00:07:15,708 INFO L444 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-20 00:07:15,708 INFO L447 ceAbstractionStarter]: At program point L5-2(lines 4 9) the Hoare annotation is: true [2019-11-20 00:07:15,709 INFO L447 ceAbstractionStarter]: At program point L34(lines 13 35) the Hoare annotation is: true [2019-11-20 00:07:15,709 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 00:07:15,709 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 00:07:15,709 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 29) no Hoare annotation was computed. [2019-11-20 00:07:15,709 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-20 00:07:15,709 INFO L447 ceAbstractionStarter]: At program point L24-2(lines 21 30) the Hoare annotation is: true [2019-11-20 00:07:15,709 INFO L444 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-20 00:07:15,710 INFO L444 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2019-11-20 00:07:15,710 INFO L444 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-20 00:07:15,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:07:15 BoogieIcfgContainer [2019-11-20 00:07:15,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:07:15,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:07:15,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:07:15,725 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:07:15,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:07:15" (3/4) ... [2019-11-20 00:07:15,729 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 00:07:15,738 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 00:07:15,738 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 00:07:15,783 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_830588b5-2342-4bf8-b09f-cf2a3a362a17/bin/uautomizer/witness.graphml [2019-11-20 00:07:15,783 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:07:15,785 INFO L168 Benchmark]: Toolchain (without parser) took 1388.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 952.8 MB in the beginning and 1.0 GB in the end (delta: -91.1 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:07:15,785 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:07:15,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 00:07:15,787 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:07:15,787 INFO L168 Benchmark]: Boogie Preprocessor took 20.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:07:15,788 INFO L168 Benchmark]: RCFGBuilder took 292.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:07:15,788 INFO L168 Benchmark]: TraceAbstraction took 701.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:07:15,789 INFO L168 Benchmark]: Witness Printer took 58.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-20 00:07:15,792 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 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 278.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 292.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 701.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. * Witness Printer took 58.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 6 SDslu, 22 SDs, 0 SdLazy, 33 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 3 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, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 390 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 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...