./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 301c54c8b861008a1cf318e5b7f3396bc86db7c8 ........................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 10:37:51,731 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:37:51,732 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:37:51,737 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:37:51,738 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:37:51,738 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:37:51,739 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:37:51,740 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:37:51,740 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:37:51,741 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:37:51,741 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:37:51,741 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:37:51,742 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:37:51,742 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:37:51,743 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:37:51,743 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:37:51,744 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:37:51,744 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:37:51,745 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:37:51,746 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:37:51,747 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:37:51,747 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:37:51,748 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:37:51,749 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:37:51,749 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:37:51,749 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:37:51,750 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:37:51,750 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:37:51,750 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:37:51,751 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:37:51,751 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:37:51,751 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:37:51,752 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:37:51,752 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:37:51,752 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:37:51,752 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:37:51,753 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 10:37:51,760 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:37:51,760 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:37:51,761 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:37:51,761 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:37:51,761 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 10:37:51,761 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 10:37:51,761 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 10:37:51,761 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 10:37:51,761 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 10:37:51,761 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 10:37:51,761 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 10:37:51,761 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 10:37:51,762 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 10:37:51,762 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:37:51,762 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:37:51,762 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:37:51,762 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:37:51,762 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:37:51,762 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:37:51,762 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:37:51,763 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:37:51,763 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:37:51,763 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:37:51,763 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:37:51,763 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:37:51,763 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:37:51,763 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:37:51,763 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:37:51,763 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:37:51,763 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:37:51,763 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:37:51,764 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:37:51,764 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 10:37:51,764 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:37:51,764 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 10:37:51,764 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 10:37:51,764 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan 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 -> Taipan 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 -> 301c54c8b861008a1cf318e5b7f3396bc86db7c8 [2018-12-09 10:37:51,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:37:51,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:37:51,793 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:37:51,795 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:37:51,795 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:37:51,796 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan/../../sv-benchmarks/c/recursive-simple/sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c [2018-12-09 10:37:51,833 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan/data/542d3ed27/cfed2b6dbc3946228d3843e5415ef2b7/FLAG719f85ed5 [2018-12-09 10:37:52,162 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:37:52,162 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/sv-benchmarks/c/recursive-simple/sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c [2018-12-09 10:37:52,165 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan/data/542d3ed27/cfed2b6dbc3946228d3843e5415ef2b7/FLAG719f85ed5 [2018-12-09 10:37:52,558 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan/data/542d3ed27/cfed2b6dbc3946228d3843e5415ef2b7 [2018-12-09 10:37:52,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:37:52,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:37:52,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:37:52,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:37:52,566 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:37:52,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:37:52" (1/1) ... [2018-12-09 10:37:52,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770bfda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:37:52, skipping insertion in model container [2018-12-09 10:37:52,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:37:52" (1/1) ... [2018-12-09 10:37:52,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:37:52,583 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:37:52,664 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:37:52,666 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:37:52,674 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:37:52,681 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:37:52,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:37:52 WrapperNode [2018-12-09 10:37:52,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:37:52,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:37:52,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:37:52,682 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:37:52,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:37:52" (1/1) ... [2018-12-09 10:37:52,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:37:52" (1/1) ... [2018-12-09 10:37:52,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:37:52,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:37:52,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:37:52,694 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:37:52,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:37:52" (1/1) ... [2018-12-09 10:37:52,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:37:52" (1/1) ... [2018-12-09 10:37:52,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:37:52" (1/1) ... [2018-12-09 10:37:52,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:37:52" (1/1) ... [2018-12-09 10:37:52,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:37:52" (1/1) ... [2018-12-09 10:37:52,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:37:52" (1/1) ... [2018-12-09 10:37:52,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:37:52" (1/1) ... [2018-12-09 10:37:52,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:37:52,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:37:52,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:37:52,705 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:37:52,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:37:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan/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 [2018-12-09 10:37:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:37:52,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:37:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:37:52,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:37:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2018-12-09 10:37:52,764 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2018-12-09 10:37:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:37:52,765 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:37:52,837 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:37:52,837 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 10:37:52,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:37:52 BoogieIcfgContainer [2018-12-09 10:37:52,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:37:52,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:37:52,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:37:52,840 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:37:52,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:37:52" (1/3) ... [2018-12-09 10:37:52,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e86a0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:37:52, skipping insertion in model container [2018-12-09 10:37:52,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:37:52" (2/3) ... [2018-12-09 10:37:52,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e86a0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:37:52, skipping insertion in model container [2018-12-09 10:37:52,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:37:52" (3/3) ... [2018-12-09 10:37:52,843 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c [2018-12-09 10:37:52,849 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:37:52,854 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:37:52,864 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:37:52,882 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:37:52,883 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:37:52,883 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:37:52,883 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:37:52,883 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:37:52,883 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:37:52,883 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:37:52,883 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:37:52,893 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-12-09 10:37:52,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 10:37:52,897 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:37:52,897 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:37:52,899 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:37:52,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:37:52,902 INFO L82 PathProgramCache]: Analyzing trace with hash 2001781660, now seen corresponding path program 1 times [2018-12-09 10:37:52,904 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:37:52,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:37:52,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:37:52,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:37:52,932 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:37:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:37:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:37:53,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:37:53,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:37:53,099 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:37:53,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:37:53,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:37:53,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:37:53,110 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 6 states. [2018-12-09 10:37:53,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:37:53,181 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2018-12-09 10:37:53,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:37:53,183 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-12-09 10:37:53,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:37:53,191 INFO L225 Difference]: With dead ends: 32 [2018-12-09 10:37:53,191 INFO L226 Difference]: Without dead ends: 18 [2018-12-09 10:37:53,193 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:37:53,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-09 10:37:53,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-09 10:37:53,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-09 10:37:53,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-12-09 10:37:53,221 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-12-09 10:37:53,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:37:53,222 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-12-09 10:37:53,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:37:53,222 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-12-09 10:37:53,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 10:37:53,223 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:37:53,223 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:37:53,224 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:37:53,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:37:53,224 INFO L82 PathProgramCache]: Analyzing trace with hash -118151420, now seen corresponding path program 1 times [2018-12-09 10:37:53,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:37:53,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:37:53,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:37:53,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:37:53,225 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:37:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:37:53,368 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 10:37:53,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:37:53,368 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:37:53,368 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-12-09 10:37:53,369 INFO L205 CegarAbsIntRunner]: [0], [4], [7], [8], [10], [11], [12], [14], [17], [19], [25], [26], [27], [29], [30], [31], [32] [2018-12-09 10:37:53,388 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:37:53,388 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:37:53,476 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:37:53,476 INFO L272 AbstractInterpreter]: Visited 17 different actions 42 times. Merged at 2 different actions 6 times. Never widened. Performed 94 root evaluator evaluations with a maximum evaluation depth of 4. Performed 94 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 4 fixpoints after 3 different actions. Largest state had 6 variables. [2018-12-09 10:37:53,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:37:53,482 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:37:53,482 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:37:53,482 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan/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 [2018-12-09 10:37:53,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:37:53,488 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:37:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:37:53,505 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:37:53,596 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 10:37:53,596 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:37:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:37:56,503 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 10:37:56,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 16 [2018-12-09 10:37:56,504 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 10:37:56,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-09 10:37:56,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-09 10:37:56,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=199, Unknown=1, NotChecked=0, Total=240 [2018-12-09 10:37:56,505 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 13 states. [2018-12-09 10:37:56,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:37:56,600 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-12-09 10:37:56,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 10:37:56,601 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2018-12-09 10:37:56,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:37:56,601 INFO L225 Difference]: With dead ends: 23 [2018-12-09 10:37:56,601 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 10:37:56,602 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=82, Invalid=337, Unknown=1, NotChecked=0, Total=420 [2018-12-09 10:37:56,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 10:37:56,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 10:37:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 10:37:56,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 10:37:56,603 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-12-09 10:37:56,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:37:56,603 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 10:37:56,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-09 10:37:56,603 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 10:37:56,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 10:37:56,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 10:37:56,621 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 10:37:56,622 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:37:56,622 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:37:56,622 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 10:37:56,622 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 10:37:56,622 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 10:37:56,622 INFO L448 ceAbstractionStarter]: For program point sumEXIT(lines 4 10) no Hoare annotation was computed. [2018-12-09 10:37:56,622 INFO L444 ceAbstractionStarter]: At program point L8(line 8) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= |sum_#in~m| sum_~m)) [2018-12-09 10:37:56,622 INFO L448 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-12-09 10:37:56,622 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 9) no Hoare annotation was computed. [2018-12-09 10:37:56,622 INFO L448 ceAbstractionStarter]: For program point sumFINAL(lines 4 10) no Hoare annotation was computed. [2018-12-09 10:37:56,622 INFO L451 ceAbstractionStarter]: At program point sumENTRY(lines 4 10) the Hoare annotation is: true [2018-12-09 10:37:56,623 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2018-12-09 10:37:56,623 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 12 19) the Hoare annotation is: true [2018-12-09 10:37:56,623 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 12 19) no Hoare annotation was computed. [2018-12-09 10:37:56,623 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-12-09 10:37:56,623 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2018-12-09 10:37:56,623 INFO L451 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: true [2018-12-09 10:37:56,623 INFO L448 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-12-09 10:37:56,623 INFO L448 ceAbstractionStarter]: For program point L16-2(lines 12 19) no Hoare annotation was computed. [2018-12-09 10:37:56,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:37:56 BoogieIcfgContainer [2018-12-09 10:37:56,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 10:37:56,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:37:56,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:37:56,625 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:37:56,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:37:52" (3/4) ... [2018-12-09 10:37:56,627 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 10:37:56,631 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 10:37:56,631 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2018-12-09 10:37:56,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 10:37:56,634 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-09 10:37:56,634 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 10:37:56,634 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 10:37:56,657 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3e15c7d8-c954-43e7-9477-893599125300/bin-2019/utaipan/witness.graphml [2018-12-09 10:37:56,657 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:37:56,657 INFO L168 Benchmark]: Toolchain (without parser) took 4096.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 949.7 MB in the beginning and 935.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 130.9 MB. Max. memory is 11.5 GB. [2018-12-09 10:37:56,658 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:37:56,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 119.51 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-09 10:37:56,659 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.63 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:37:56,659 INFO L168 Benchmark]: Boogie Preprocessor took 10.51 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:37:56,659 INFO L168 Benchmark]: RCFGBuilder took 133.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-12-09 10:37:56,659 INFO L168 Benchmark]: TraceAbstraction took 3786.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 938.4 MB in the end (delta: 165.1 MB). Peak memory consumption was 165.1 MB. Max. memory is 11.5 GB. [2018-12-09 10:37:56,660 INFO L168 Benchmark]: Witness Printer took 31.72 ms. Allocated memory is still 1.1 GB. Free memory was 938.4 MB in the beginning and 935.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:37:56,662 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 119.51 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.63 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.51 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 133.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3786.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 938.4 MB in the end (delta: 165.1 MB). Peak memory consumption was 165.1 MB. Max. memory is 11.5 GB. * Witness Printer took 31.72 ms. Allocated memory is still 1.1 GB. Free memory was 938.4 MB in the beginning and 935.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 12 SDslu, 85 SDs, 0 SdLazy, 91 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 13 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 3 QuantifiedInterpolants, 11382 SizeOfPredicates, 9 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 6/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...