./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_step2_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_step2_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/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 c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc ............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 11:47:39,746 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:47:39,748 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:47:39,757 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:47:39,758 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:47:39,758 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:47:39,759 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:47:39,760 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:47:39,762 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:47:39,763 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:47:39,763 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:47:39,764 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:47:39,764 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:47:39,765 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:47:39,766 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:47:39,766 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:47:39,767 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:47:39,768 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:47:39,771 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:47:39,772 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:47:39,773 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:47:39,774 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:47:39,776 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:47:39,776 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:47:39,776 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:47:39,777 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:47:39,778 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:47:39,779 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:47:39,779 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:47:39,780 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:47:39,780 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:47:39,781 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:47:39,782 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:47:39,782 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:47:39,782 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:47:39,783 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:47:39,783 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 11:47:39,793 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:47:39,794 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:47:39,794 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:47:39,795 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 11:47:39,795 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 11:47:39,795 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 11:47:39,795 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 11:47:39,796 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:47:39,796 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 11:47:39,796 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:47:39,797 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:47:39,797 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:47:39,797 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:47:39,797 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:47:39,797 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 11:47:39,797 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:47:39,797 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:47:39,798 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:47:39,798 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:47:39,798 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:47:39,798 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:47:39,798 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:47:39,798 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:47:39,799 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:47:39,799 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:47:39,799 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 11:47:39,799 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:47:39,799 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:47:39,799 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/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 -> c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc [2018-11-10 11:47:39,826 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:47:39,834 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:47:39,837 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:47:39,838 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:47:39,838 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:47:39,839 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Cairo_step2_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 11:47:39,889 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/uautomizer/data/1ef52e886/db4bc5ac054448d3b9219249a361ab1b/FLAG1a2b2bceb [2018-11-10 11:47:40,219 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:47:40,219 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/sv-benchmarks/c/termination-crafted/Cairo_step2_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 11:47:40,223 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/uautomizer/data/1ef52e886/db4bc5ac054448d3b9219249a361ab1b/FLAG1a2b2bceb [2018-11-10 11:47:40,233 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/uautomizer/data/1ef52e886/db4bc5ac054448d3b9219249a361ab1b [2018-11-10 11:47:40,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:47:40,236 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 11:47:40,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:47:40,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:47:40,239 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:47:40,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:47:40" (1/1) ... [2018-11-10 11:47:40,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eeb45d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:40, skipping insertion in model container [2018-11-10 11:47:40,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:47:40" (1/1) ... [2018-11-10 11:47:40,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:47:40,260 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:47:40,359 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:47:40,361 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:47:40,370 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:47:40,379 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:47:40,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:40 WrapperNode [2018-11-10 11:47:40,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:47:40,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:47:40,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:47:40,380 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:47:40,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:40" (1/1) ... [2018-11-10 11:47:40,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:40" (1/1) ... [2018-11-10 11:47:40,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:40" (1/1) ... [2018-11-10 11:47:40,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:40" (1/1) ... [2018-11-10 11:47:40,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:40" (1/1) ... [2018-11-10 11:47:40,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:40" (1/1) ... [2018-11-10 11:47:40,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:40" (1/1) ... [2018-11-10 11:47:40,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:47:40,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:47:40,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:47:40,401 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:47:40,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/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 [2018-11-10 11:47:40,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:47:40,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:47:40,480 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:47:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 11:47:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:47:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:47:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:47:40,600 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:47:40,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:47:40 BoogieIcfgContainer [2018-11-10 11:47:40,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:47:40,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:47:40,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:47:40,604 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:47:40,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:47:40" (1/3) ... [2018-11-10 11:47:40,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667e7b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:47:40, skipping insertion in model container [2018-11-10 11:47:40,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:47:40" (2/3) ... [2018-11-10 11:47:40,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667e7b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:47:40, skipping insertion in model container [2018-11-10 11:47:40,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:47:40" (3/3) ... [2018-11-10 11:47:40,607 INFO L112 eAbstractionObserver]: Analyzing ICFG Cairo_step2_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 11:47:40,613 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:47:40,619 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-10 11:47:40,631 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-10 11:47:40,652 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 11:47:40,653 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:47:40,653 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:47:40,653 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:47:40,653 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:47:40,653 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:47:40,653 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:47:40,653 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:47:40,653 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:47:40,665 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-10 11:47:40,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 11:47:40,670 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:47:40,671 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:47:40,673 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 11:47:40,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:47:40,678 INFO L82 PathProgramCache]: Analyzing trace with hash -217682939, now seen corresponding path program 1 times [2018-11-10 11:47:40,679 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:47:40,680 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:47:40,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:47:40,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:47:40,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:47:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:47:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:47:40,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:47:40,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 11:47:40,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 11:47:40,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 11:47:40,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:47:40,805 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-11-10 11:47:40,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:47:40,858 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-10 11:47:40,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 11:47:40,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-10 11:47:40,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:47:40,866 INFO L225 Difference]: With dead ends: 22 [2018-11-10 11:47:40,866 INFO L226 Difference]: Without dead ends: 11 [2018-11-10 11:47:40,868 INFO L605 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 [2018-11-10 11:47:40,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-11-10 11:47:40,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-10 11:47:40,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-10 11:47:40,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-11-10 11:47:40,893 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-11-10 11:47:40,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:47:40,893 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-11-10 11:47:40,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 11:47:40,893 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-11-10 11:47:40,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 11:47:40,894 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:47:40,894 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:47:40,895 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 11:47:40,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:47:40,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1841763534, now seen corresponding path program 1 times [2018-11-10 11:47:40,896 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:47:40,896 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:47:40,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:47:40,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:47:40,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:47:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:47:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:47:40,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:47:40,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 11:47:40,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 11:47:40,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 11:47:40,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:47:40,922 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 3 states. [2018-11-10 11:47:40,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:47:40,945 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-11-10 11:47:40,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 11:47:40,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 11:47:40,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:47:40,947 INFO L225 Difference]: With dead ends: 16 [2018-11-10 11:47:40,947 INFO L226 Difference]: Without dead ends: 15 [2018-11-10 11:47:40,948 INFO L605 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 [2018-11-10 11:47:40,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-10 11:47:40,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-10 11:47:40,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-10 11:47:40,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-10 11:47:40,953 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2018-11-10 11:47:40,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:47:40,953 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-11-10 11:47:40,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 11:47:40,953 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-10 11:47:40,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 11:47:40,954 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:47:40,954 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:47:40,954 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 11:47:40,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:47:40,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1468487574, now seen corresponding path program 1 times [2018-11-10 11:47:40,955 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:47:40,955 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:47:40,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:47:40,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:47:40,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:47:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:47:40,991 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:47:40,991 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:47:40,991 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:47:41,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:47:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:47:41,017 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:47:41,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:47:41,061 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 11:47:41,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-10 11:47:41,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 11:47:41,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 11:47:41,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 11:47:41,062 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2018-11-10 11:47:41,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:47:41,082 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-11-10 11:47:41,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 11:47:41,082 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-10 11:47:41,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:47:41,082 INFO L225 Difference]: With dead ends: 15 [2018-11-10 11:47:41,083 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 11:47:41,083 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 11:47:41,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 11:47:41,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 11:47:41,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 11:47:41,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 11:47:41,084 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-10 11:47:41,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:47:41,084 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 11:47:41,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 11:47:41,084 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 11:47:41,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 11:47:41,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 11:47:41,112 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 11:47:41,112 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 11:47:41,112 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 11:47:41,112 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 11:47:41,112 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 11:47:41,112 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 11:47:41,112 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2018-11-10 11:47:41,113 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2018-11-10 11:47:41,113 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 21) the Hoare annotation is: true [2018-11-10 11:47:41,113 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 21) no Hoare annotation was computed. [2018-11-10 11:47:41,113 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-10 11:47:41,113 INFO L425 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-10 11:47:41,113 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-11-10 11:47:41,113 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 18) no Hoare annotation was computed. [2018-11-10 11:47:41,113 INFO L425 ceAbstractionStarter]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2018-11-10 11:47:41,113 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 18) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= 0 (+ main_~x~0 1))) [2018-11-10 11:47:41,113 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 21) no Hoare annotation was computed. [2018-11-10 11:47:41,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:47:41 BoogieIcfgContainer [2018-11-10 11:47:41,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 11:47:41,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:47:41,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:47:41,122 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:47:41,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:47:40" (3/4) ... [2018-11-10 11:47:41,126 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 11:47:41,131 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 11:47:41,132 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 11:47:41,135 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 11:47:41,135 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 11:47:41,135 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 11:47:41,165 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_678bc1f7-70b7-45b7-ac3a-a550fcc4d599/bin-2019/uautomizer/witness.graphml [2018-11-10 11:47:41,165 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:47:41,166 INFO L168 Benchmark]: Toolchain (without parser) took 930.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 954.8 MB in the beginning and 1.1 GB in the end (delta: -125.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:47:41,167 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:47:41,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.51 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:47:41,167 INFO L168 Benchmark]: Boogie Preprocessor took 20.09 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 943.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:47:41,168 INFO L168 Benchmark]: RCFGBuilder took 200.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 11:47:41,169 INFO L168 Benchmark]: TraceAbstraction took 520.18 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. [2018-11-10 11:47:41,169 INFO L168 Benchmark]: Witness Printer took 43.38 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 11:47:41,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.51 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.09 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 943.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 200.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 520.18 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. * Witness Printer took 43.38 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: 3.4 MB). Peak memory consumption was 3.4 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: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x <= 2147483647 && 0 <= x + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 17 locations, 2 error locations. SAFE Result, 0.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 6 SDslu, 20 SDs, 0 SdLazy, 21 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 13 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 1243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...