./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_a80254b8-e5d7-49e4-a584-592b4a13c05e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a80254b8-e5d7-49e4-a584-592b4a13c05e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a80254b8-e5d7-49e4-a584-592b4a13c05e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a80254b8-e5d7-49e4-a584-592b4a13c05e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a80254b8-e5d7-49e4-a584-592b4a13c05e/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a80254b8-e5d7-49e4-a584-592b4a13c05e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e153b2922c94b2bcf8f70f9e86faabd543aefaed ................................................................................................................................................................................................................................................................................................................................................ 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 05:09:44,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:09:44,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:09:44,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:09:44,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:09:44,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:09:44,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:09:44,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:09:44,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:09:44,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:09:44,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:09:44,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:09:44,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:09:44,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:09:44,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:09:44,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:09:44,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:09:44,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:09:44,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:09:44,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:09:44,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:09:44,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:09:44,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:09:44,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:09:44,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:09:44,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:09:44,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:09:44,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:09:44,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:09:44,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:09:44,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:09:44,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:09:44,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:09:44,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:09:44,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:09:44,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:09:44,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:09:44,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:09:44,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:09:44,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:09:44,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:09:44,481 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a80254b8-e5d7-49e4-a584-592b4a13c05e/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-20 05:09:44,495 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:09:44,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:09:44,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:09:44,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:09:44,497 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:09:44,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:09:44,497 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 05:09:44,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:09:44,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:09:44,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:09:44,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:09:44,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:09:44,498 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 05:09:44,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:09:44,499 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:09:44,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:09:44,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:09:44,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:09:44,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:09:44,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:09:44,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:09:44,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:09:44,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:09:44,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:09:44,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:09:44,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:09:44,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:09:44,502 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_a80254b8-e5d7-49e4-a584-592b4a13c05e/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e153b2922c94b2bcf8f70f9e86faabd543aefaed [2019-11-20 05:09:44,657 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:09:44,668 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:09:44,671 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:09:44,672 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:09:44,673 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:09:44,674 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a80254b8-e5d7-49e4-a584-592b4a13c05e/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2019-11-20 05:09:44,732 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a80254b8-e5d7-49e4-a584-592b4a13c05e/bin/uautomizer/data/55deb8d00/f95db96253594046b892d50ec0e10ee5/FLAGc2edd8eb2 [2019-11-20 05:09:45,121 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:09:45,121 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a80254b8-e5d7-49e4-a584-592b4a13c05e/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2019-11-20 05:09:45,128 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a80254b8-e5d7-49e4-a584-592b4a13c05e/bin/uautomizer/data/55deb8d00/f95db96253594046b892d50ec0e10ee5/FLAGc2edd8eb2 [2019-11-20 05:09:45,550 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a80254b8-e5d7-49e4-a584-592b4a13c05e/bin/uautomizer/data/55deb8d00/f95db96253594046b892d50ec0e10ee5 [2019-11-20 05:09:45,553 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:09:45,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:09:45,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:09:45,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:09:45,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:09:45,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:09:45" (1/1) ... [2019-11-20 05:09:45,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71295631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:45, skipping insertion in model container [2019-11-20 05:09:45,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:09:45" (1/1) ... [2019-11-20 05:09:45,572 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:09:45,593 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:09:45,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:09:45,805 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:09:45,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:09:45,906 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:09:45,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:45 WrapperNode [2019-11-20 05:09:45,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:09:45,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:09:45,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:09:45,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:09:45,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:45" (1/1) ... [2019-11-20 05:09:45,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:45" (1/1) ... [2019-11-20 05:09:45,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:09:45,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:09:45,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:09:45,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:09:45,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:45" (1/1) ... [2019-11-20 05:09:45,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:45" (1/1) ... [2019-11-20 05:09:45,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:45" (1/1) ... [2019-11-20 05:09:45,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:45" (1/1) ... [2019-11-20 05:09:45,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:45" (1/1) ... [2019-11-20 05:09:45,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:45" (1/1) ... [2019-11-20 05:09:45,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:45" (1/1) ... [2019-11-20 05:09:45,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:09:45,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:09:45,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:09:45,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:09:45,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a80254b8-e5d7-49e4-a584-592b4a13c05e/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 05:09:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:09:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:09:46,174 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:09:46,175 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 05:09:46,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:09:46 BoogieIcfgContainer [2019-11-20 05:09:46,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:09:46,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:09:46,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:09:46,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:09:46,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:09:45" (1/3) ... [2019-11-20 05:09:46,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718a47cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:09:46, skipping insertion in model container [2019-11-20 05:09:46,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:09:45" (2/3) ... [2019-11-20 05:09:46,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718a47cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:09:46, skipping insertion in model container [2019-11-20 05:09:46,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:09:46" (3/3) ... [2019-11-20 05:09:46,183 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy1.c [2019-11-20 05:09:46,192 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:09:46,198 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-20 05:09:46,209 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-20 05:09:46,233 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:09:46,233 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:09:46,233 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:09:46,233 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:09:46,233 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:09:46,234 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:09:46,234 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:09:46,234 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:09:46,248 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-20 05:09:46,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 05:09:46,253 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:09:46,254 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-20 05:09:46,255 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 05:09:46,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:09:46,261 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-11-20 05:09:46,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:09:46,269 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387489041] [2019-11-20 05:09:46,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:09:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:09:46,412 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 05:09:46,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387489041] [2019-11-20 05:09:46,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:09:46,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 05:09:46,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994655528] [2019-11-20 05:09:46,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 05:09:46,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:09:46,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 05:09:46,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:09:46,438 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-11-20 05:09:46,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:09:46,534 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2019-11-20 05:09:46,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 05:09:46,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-20 05:09:46,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:09:46,543 INFO L225 Difference]: With dead ends: 27 [2019-11-20 05:09:46,543 INFO L226 Difference]: Without dead ends: 17 [2019-11-20 05:09:46,546 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:09:46,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-20 05:09:46,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2019-11-20 05:09:46,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-20 05:09:46,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-20 05:09:46,582 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2019-11-20 05:09:46,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:09:46,582 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-20 05:09:46,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 05:09:46,583 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-20 05:09:46,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 05:09:46,583 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:09:46,583 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 05:09:46,584 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 05:09:46,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:09:46,584 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-11-20 05:09:46,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:09:46,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104759250] [2019-11-20 05:09:46,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:09:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:09:46,617 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 05:09:46,618 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104759250] [2019-11-20 05:09:46,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:09:46,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 05:09:46,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240251830] [2019-11-20 05:09:46,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 05:09:46,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:09:46,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 05:09:46,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:09:46,621 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2019-11-20 05:09:46,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:09:46,644 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-11-20 05:09:46,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 05:09:46,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-20 05:09:46,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:09:46,645 INFO L225 Difference]: With dead ends: 15 [2019-11-20 05:09:46,645 INFO L226 Difference]: Without dead ends: 13 [2019-11-20 05:09:46,646 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:09:46,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-20 05:09:46,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-20 05:09:46,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 05:09:46,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-11-20 05:09:46,650 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2019-11-20 05:09:46,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:09:46,650 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-20 05:09:46,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 05:09:46,650 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-11-20 05:09:46,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 05:09:46,651 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:09:46,651 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2019-11-20 05:09:46,651 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 05:09:46,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:09:46,652 INFO L82 PathProgramCache]: Analyzing trace with hash 784501312, now seen corresponding path program 1 times [2019-11-20 05:09:46,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:09:46,653 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947314044] [2019-11-20 05:09:46,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:09:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:09:46,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 05:09:46,681 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947314044] [2019-11-20 05:09:46,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:09:46,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 05:09:46,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638949358] [2019-11-20 05:09:46,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 05:09:46,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:09:46,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 05:09:46,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:09:46,683 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2019-11-20 05:09:46,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:09:46,708 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2019-11-20 05:09:46,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 05:09:46,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-20 05:09:46,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:09:46,709 INFO L225 Difference]: With dead ends: 13 [2019-11-20 05:09:46,710 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 05:09:46,710 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:09:46,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 05:09:46,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 05:09:46,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 05:09:46,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 05:09:46,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-20 05:09:46,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:09:46,712 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:09:46,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 05:09:46,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:09:46,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 05:09:46,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 05:09:46,728 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-11-20 05:09:46,728 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 05:09:46,729 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-11-20 05:09:46,729 INFO L444 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-11-20 05:09:46,729 INFO L444 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2019-11-20 05:09:46,729 INFO L444 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-20 05:09:46,729 INFO L444 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-11-20 05:09:46,729 INFO L444 ceAbstractionStarter]: For program point L13-2(lines 13 19) no Hoare annotation was computed. [2019-11-20 05:09:46,729 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-11-20 05:09:46,730 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-11-20 05:09:46,730 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 05:09:46,730 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 05:09:46,730 INFO L447 ceAbstractionStarter]: At program point L20(lines 11 21) the Hoare annotation is: true [2019-11-20 05:09:46,730 INFO L444 ceAbstractionStarter]: For program point L14(lines 14 18) no Hoare annotation was computed. [2019-11-20 05:09:46,730 INFO L440 ceAbstractionStarter]: At program point L14-2(lines 13 19) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~x~0) [2019-11-20 05:09:46,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:09:46 BoogieIcfgContainer [2019-11-20 05:09:46,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 05:09:46,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:09:46,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:09:46,745 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:09:46,745 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:09:46" (3/4) ... [2019-11-20 05:09:46,749 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 05:09:46,758 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 05:09:46,759 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 05:09:46,796 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a80254b8-e5d7-49e4-a584-592b4a13c05e/bin/uautomizer/witness.graphml [2019-11-20 05:09:46,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:09:46,799 INFO L168 Benchmark]: Toolchain (without parser) took 1243.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -133.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-11-20 05:09:46,799 INFO L168 Benchmark]: CDTParser took 0.22 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 05:09:46,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -188.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:09:46,806 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.00 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 05:09:46,806 INFO L168 Benchmark]: Boogie Preprocessor took 16.35 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 05:09:46,807 INFO L168 Benchmark]: RCFGBuilder took 219.25 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:09:46,807 INFO L168 Benchmark]: TraceAbstraction took 567.78 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:09:46,808 INFO L168 Benchmark]: Witness Printer took 52.11 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 05:09:46,811 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 351.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -188.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.00 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 16.35 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. * RCFGBuilder took 219.25 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 567.78 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 52.11 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: - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= x - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 12 SDslu, 5 SDs, 0 SdLazy, 29 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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...