./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/quick_sort_split.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/quick_sort_split.i -s /tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/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 9a9cf4ff5024af4bea046a077f81b398a029046b .................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:55:11,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:55:11,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:55:11,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:55:11,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:55:11,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:55:11,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:55:11,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:55:11,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:55:11,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:55:11,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:55:11,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:55:11,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:55:11,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:55:11,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:55:11,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:55:11,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:55:11,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:55:11,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:55:11,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:55:11,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:55:11,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:55:11,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:55:11,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:55:11,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:55:11,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:55:11,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:55:11,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:55:11,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:55:11,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:55:11,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:55:11,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:55:11,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:55:11,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:55:11,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:55:11,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:55:11,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:55:11,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:55:11,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:55:11,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:55:11,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:55:11,598 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:55:11,627 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:55:11,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:55:11,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:55:11,628 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:55:11,629 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:55:11,629 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:55:11,629 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:55:11,629 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:55:11,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:55:11,630 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:55:11,631 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:55:11,631 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:55:11,631 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:55:11,631 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:55:11,632 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:55:11,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:55:11,632 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:55:11,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:55:11,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:55:11,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:55:11,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:55:11,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:55:11,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:55:11,634 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:55:11,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:55:11,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:55:11,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:55:11,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:55:11,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:55:11,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:55:11,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:55:11,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:55:11,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:55:11,636 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:55:11,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:55:11,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:55:11,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:55:11,637 INFO L138 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/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/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 -> 9a9cf4ff5024af4bea046a077f81b398a029046b [2019-11-26 02:55:11,767 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:55:11,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:55:11,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:55:11,785 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:55:11,786 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:55:11,786 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/utaipan/../../sv-benchmarks/c/heap-data/quick_sort_split.i [2019-11-26 02:55:11,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/utaipan/data/c7b327e46/094a5ba100ff48d694577ec30e8abcd0/FLAG0ae683a7f [2019-11-26 02:55:12,319 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:55:12,320 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/sv-benchmarks/c/heap-data/quick_sort_split.i [2019-11-26 02:55:12,334 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/utaipan/data/c7b327e46/094a5ba100ff48d694577ec30e8abcd0/FLAG0ae683a7f [2019-11-26 02:55:12,347 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/utaipan/data/c7b327e46/094a5ba100ff48d694577ec30e8abcd0 [2019-11-26 02:55:12,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:55:12,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:55:12,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:55:12,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:55:12,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:55:12,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:55:12" (1/1) ... [2019-11-26 02:55:12,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14868710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:12, skipping insertion in model container [2019-11-26 02:55:12,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:55:12" (1/1) ... [2019-11-26 02:55:12,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:55:12,410 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:55:12,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:55:12,841 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:55:12,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:55:12,929 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:55:12,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:12 WrapperNode [2019-11-26 02:55:12,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:55:12,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:55:12,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:55:12,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:55:12,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:12" (1/1) ... [2019-11-26 02:55:12,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:12" (1/1) ... [2019-11-26 02:55:12,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:55:12,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:55:12,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:55:12,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:55:12,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:12" (1/1) ... [2019-11-26 02:55:12,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:12" (1/1) ... [2019-11-26 02:55:12,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:12" (1/1) ... [2019-11-26 02:55:12,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:12" (1/1) ... [2019-11-26 02:55:13,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:12" (1/1) ... [2019-11-26 02:55:13,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:12" (1/1) ... [2019-11-26 02:55:13,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:12" (1/1) ... [2019-11-26 02:55:13,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:55:13,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:55:13,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:55:13,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:55:13,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/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 [2019-11-26 02:55:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:55:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:55:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 02:55:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:55:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-26 02:55:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-26 02:55:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:55:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-26 02:55:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:55:13,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:55:13,721 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:55:13,722 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-26 02:55:13,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:55:13 BoogieIcfgContainer [2019-11-26 02:55:13,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:55:13,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:55:13,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:55:13,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:55:13,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:55:12" (1/3) ... [2019-11-26 02:55:13,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5f738a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:55:13, skipping insertion in model container [2019-11-26 02:55:13,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:12" (2/3) ... [2019-11-26 02:55:13,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5f738a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:55:13, skipping insertion in model container [2019-11-26 02:55:13,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:55:13" (3/3) ... [2019-11-26 02:55:13,733 INFO L109 eAbstractionObserver]: Analyzing ICFG quick_sort_split.i [2019-11-26 02:55:13,741 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:55:13,746 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-26 02:55:13,754 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-26 02:55:13,774 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:55:13,774 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:55:13,774 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:55:13,774 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:55:13,775 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:55:13,775 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:55:13,775 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:55:13,775 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:55:13,786 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-26 02:55:13,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:55:13,791 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:55:13,792 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:55:13,792 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:55:13,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:55:13,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1046326799, now seen corresponding path program 1 times [2019-11-26 02:55:13,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:55:13,803 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347917319] [2019-11-26 02:55:13,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:55:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:55:13,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:55:13,901 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347917319] [2019-11-26 02:55:13,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:55:13,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:55:13,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066509028] [2019-11-26 02:55:13,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:55:13,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:55:13,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:55:13,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:55:13,921 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2019-11-26 02:55:13,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:55:13,933 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2019-11-26 02:55:13,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:55:13,934 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:55:13,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:55:13,942 INFO L225 Difference]: With dead ends: 29 [2019-11-26 02:55:13,942 INFO L226 Difference]: Without dead ends: 15 [2019-11-26 02:55:13,945 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:55:13,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-26 02:55:13,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-26 02:55:13,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-26 02:55:13,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2019-11-26 02:55:13,974 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 7 [2019-11-26 02:55:13,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:55:13,974 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-11-26 02:55:13,975 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:55:13,975 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2019-11-26 02:55:13,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:55:13,975 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:55:13,975 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:55:13,976 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:55:13,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:55:13,976 INFO L82 PathProgramCache]: Analyzing trace with hash -770041418, now seen corresponding path program 1 times [2019-11-26 02:55:13,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:55:13,976 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669398048] [2019-11-26 02:55:13,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:55:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:55:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:55:14,022 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669398048] [2019-11-26 02:55:14,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:55:14,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:55:14,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144127062] [2019-11-26 02:55:14,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:55:14,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:55:14,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:55:14,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:55:14,025 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand 3 states. [2019-11-26 02:55:14,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:55:14,039 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-11-26 02:55:14,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:55:14,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-26 02:55:14,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:55:14,040 INFO L225 Difference]: With dead ends: 21 [2019-11-26 02:55:14,041 INFO L226 Difference]: Without dead ends: 11 [2019-11-26 02:55:14,041 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:55:14,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-26 02:55:14,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-26 02:55:14,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-26 02:55:14,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-26 02:55:14,044 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2019-11-26 02:55:14,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:55:14,045 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-26 02:55:14,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:55:14,045 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-11-26 02:55:14,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:55:14,046 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:55:14,046 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:55:14,046 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:55:14,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:55:14,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1899907207, now seen corresponding path program 1 times [2019-11-26 02:55:14,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:55:14,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90503723] [2019-11-26 02:55:14,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:55:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:55:14,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:55:14,081 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90503723] [2019-11-26 02:55:14,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:55:14,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:55:14,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074691242] [2019-11-26 02:55:14,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:55:14,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:55:14,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:55:14,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:55:14,083 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2019-11-26 02:55:14,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:55:14,100 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-11-26 02:55:14,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:55:14,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-26 02:55:14,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:55:14,101 INFO L225 Difference]: With dead ends: 12 [2019-11-26 02:55:14,101 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:55:14,101 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:55:14,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:55:14,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:55:14,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:55:14,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:55:14,102 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-11-26 02:55:14,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:55:14,102 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:55:14,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:55:14,102 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:55:14,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:55:14,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:55:14,127 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 599) no Hoare annotation was computed. [2019-11-26 02:55:14,128 INFO L444 ceAbstractionStarter]: For program point L597-1(lines 580 602) no Hoare annotation was computed. [2019-11-26 02:55:14,128 INFO L444 ceAbstractionStarter]: For program point L593(lines 593 594) no Hoare annotation was computed. [2019-11-26 02:55:14,128 INFO L444 ceAbstractionStarter]: For program point L593-2(lines 593 594) no Hoare annotation was computed. [2019-11-26 02:55:14,128 INFO L440 ceAbstractionStarter]: At program point L585-2(lines 585 591) the Hoare annotation is: (and (= ULTIMATE.start_main_~high~0.offset 0) (= ULTIMATE.start_main_~low~0.base 0) (= 0 ULTIMATE.start_main_~high~0.base) (= 0 ULTIMATE.start_main_~low~0.offset)) [2019-11-26 02:55:14,128 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:55:14,128 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 594) no Hoare annotation was computed. [2019-11-26 02:55:14,128 INFO L444 ceAbstractionStarter]: For program point L598(lines 598 599) no Hoare annotation was computed. [2019-11-26 02:55:14,128 INFO L444 ceAbstractionStarter]: For program point L598-2(lines 598 599) no Hoare annotation was computed. [2019-11-26 02:55:14,128 INFO L444 ceAbstractionStarter]: For program point L594(line 594) no Hoare annotation was computed. [2019-11-26 02:55:14,128 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:55:14,129 INFO L444 ceAbstractionStarter]: For program point L599(line 599) no Hoare annotation was computed. [2019-11-26 02:55:14,129 INFO L447 ceAbstractionStarter]: At program point L562-1(lines 562 577) the Hoare annotation is: true [2019-11-26 02:55:14,129 INFO L444 ceAbstractionStarter]: For program point L571-1(lines 571 577) no Hoare annotation was computed. [2019-11-26 02:55:14,129 INFO L447 ceAbstractionStarter]: At program point L571-3(lines 571 577) the Hoare annotation is: true [2019-11-26 02:55:14,129 INFO L444 ceAbstractionStarter]: For program point L592-1(lines 580 602) no Hoare annotation was computed. [2019-11-26 02:55:14,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:55:14 BoogieIcfgContainer [2019-11-26 02:55:14,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:55:14,146 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:55:14,146 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:55:14,146 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:55:14,147 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:55:13" (3/4) ... [2019-11-26 02:55:14,151 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:55:14,161 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-26 02:55:14,161 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-26 02:55:14,162 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:55:14,212 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_679ab14f-e71d-49c5-8e33-c292d38912fd/bin/utaipan/witness.graphml [2019-11-26 02:55:14,212 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:55:14,214 INFO L168 Benchmark]: Toolchain (without parser) took 1862.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -101.1 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:14,214 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:55:14,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:14,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.97 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. [2019-11-26 02:55:14,216 INFO L168 Benchmark]: Boogie Preprocessor took 27.44 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. [2019-11-26 02:55:14,216 INFO L168 Benchmark]: RCFGBuilder took 708.34 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: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:14,216 INFO L168 Benchmark]: TraceAbstraction took 421.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:14,217 INFO L168 Benchmark]: Witness Printer took 66.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:14,219 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 579.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.97 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. * Boogie Preprocessor took 27.44 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 708.34 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: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 421.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 66.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 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: 599]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 594]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((high == 0 && low == 0) && 0 == high) && 0 == low - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 37 SDtfs, 8 SDslu, 6 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 15 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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...