./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 02:21:12,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:21:12,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:21:12,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:21:12,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:21:12,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:21:12,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:21:12,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:21:12,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:21:12,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:21:12,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:21:12,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:21:12,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:21:12,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:21:12,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:21:12,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:21:12,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:21:12,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:21:12,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:21:12,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:21:12,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:21:12,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:21:12,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:21:12,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:21:12,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:21:12,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:21:12,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:21:12,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:21:12,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:21:12,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:21:12,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:21:12,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:21:12,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:21:12,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:21:12,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:21:12,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:21:12,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:21:12,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:21:12,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:21:12,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:21:12,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:21:12,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-11-26 02:21:12,964 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:21:12,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:21:12,972 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:21:12,972 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:21:12,973 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:21:12,973 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:21:12,973 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:21:12,973 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:21:12,973 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:21:12,973 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:21:12,974 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:21:12,974 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:21:12,974 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:21:12,974 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:21:12,974 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:21:12,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:21:12,975 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:21:12,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:21:12,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:21:12,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:21:12,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:21:12,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:21:12,976 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:21:12,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:21:12,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:21:12,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:21:12,977 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:21:12,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:21:12,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:21:12,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:21:12,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:21:12,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:21:12,978 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:21:12,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:21:12,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:21:12,978 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:21:12,979 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_3d971787-01b7-49a2-b080-96e886e30c99/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2019-11-26 02:21:13,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:21:13,141 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:21:13,144 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:21:13,145 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:21:13,145 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:21:13,146 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2019-11-26 02:21:13,194 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan/data/214b671ac/2930366a37bb426280bec9210db7617a/FLAGba75c0f3a [2019-11-26 02:21:13,590 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:21:13,591 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2019-11-26 02:21:13,597 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan/data/214b671ac/2930366a37bb426280bec9210db7617a/FLAGba75c0f3a [2019-11-26 02:21:13,991 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan/data/214b671ac/2930366a37bb426280bec9210db7617a [2019-11-26 02:21:13,993 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:21:13,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:21:13,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:21:13,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:21:13,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:21:13,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:21:13" (1/1) ... [2019-11-26 02:21:14,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613b6a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:14, skipping insertion in model container [2019-11-26 02:21:14,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:21:13" (1/1) ... [2019-11-26 02:21:14,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:21:14,026 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:21:14,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:21:14,203 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:21:14,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:21:14,309 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:21:14,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:14 WrapperNode [2019-11-26 02:21:14,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:21:14,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:21:14,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:21:14,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:21:14,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:14" (1/1) ... [2019-11-26 02:21:14,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:14" (1/1) ... [2019-11-26 02:21:14,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:21:14,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:21:14,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:21:14,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:21:14,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:14" (1/1) ... [2019-11-26 02:21:14,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:14" (1/1) ... [2019-11-26 02:21:14,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:14" (1/1) ... [2019-11-26 02:21:14,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:14" (1/1) ... [2019-11-26 02:21:14,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:14" (1/1) ... [2019-11-26 02:21:14,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:14" (1/1) ... [2019-11-26 02:21:14,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:14" (1/1) ... [2019-11-26 02:21:14,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:21:14,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:21:14,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:21:14,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:21:14,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/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 02:21:14,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:21:14,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:21:14,588 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:21:14,588 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:21:14,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:21:14 BoogieIcfgContainer [2019-11-26 02:21:14,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:21:14,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:21:14,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:21:14,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:21:14,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:21:13" (1/3) ... [2019-11-26 02:21:14,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36920c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:21:14, skipping insertion in model container [2019-11-26 02:21:14,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:14" (2/3) ... [2019-11-26 02:21:14,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36920c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:21:14, skipping insertion in model container [2019-11-26 02:21:14,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:21:14" (3/3) ... [2019-11-26 02:21:14,602 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops.c [2019-11-26 02:21:14,611 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:21:14,626 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-26 02:21:14,635 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-26 02:21:14,657 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:21:14,658 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:21:14,658 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:21:14,658 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:21:14,658 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:21:14,658 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:21:14,659 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:21:14,659 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:21:14,684 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-26 02:21:14,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:21:14,691 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:21:14,692 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-26 02:21:14,694 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:21:14,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:21:14,701 INFO L82 PathProgramCache]: Analyzing trace with hash 29685419, now seen corresponding path program 1 times [2019-11-26 02:21:14,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:21:14,710 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362943311] [2019-11-26 02:21:14,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:21:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:21:14,817 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 02:21:14,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362943311] [2019-11-26 02:21:14,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:21:14,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:21:14,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806644060] [2019-11-26 02:21:14,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:21:14,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:21:14,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:21:14,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:21:14,834 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-11-26 02:21:14,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:21:14,875 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2019-11-26 02:21:14,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:21:14,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-26 02:21:14,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:21:14,885 INFO L225 Difference]: With dead ends: 17 [2019-11-26 02:21:14,885 INFO L226 Difference]: Without dead ends: 12 [2019-11-26 02:21:14,887 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:21:14,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-26 02:21:14,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-26 02:21:14,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-26 02:21:14,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-26 02:21:14,916 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2019-11-26 02:21:14,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:21:14,916 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-26 02:21:14,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:21:14,917 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-26 02:21:14,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:21:14,917 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:21:14,917 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:21:14,917 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:21:14,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:21:14,918 INFO L82 PathProgramCache]: Analyzing trace with hash 920230376, now seen corresponding path program 1 times [2019-11-26 02:21:14,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:21:14,918 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752588214] [2019-11-26 02:21:14,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:21:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:21:14,938 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 02:21:14,938 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752588214] [2019-11-26 02:21:14,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:21:14,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:21:14,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4292464] [2019-11-26 02:21:14,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:21:14,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:21:14,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:21:14,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:21:14,941 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2019-11-26 02:21:14,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:21:14,981 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-11-26 02:21:14,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:21:14,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-26 02:21:14,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:21:14,983 INFO L225 Difference]: With dead ends: 20 [2019-11-26 02:21:14,983 INFO L226 Difference]: Without dead ends: 19 [2019-11-26 02:21:14,983 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:21:14,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-26 02:21:14,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2019-11-26 02:21:14,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-26 02:21:14,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-11-26 02:21:14,988 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 6 [2019-11-26 02:21:14,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:21:14,988 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-26 02:21:14,988 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:21:14,988 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-11-26 02:21:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:21:14,988 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:21:14,989 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:21:14,989 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:21:14,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:21:14,989 INFO L82 PathProgramCache]: Analyzing trace with hash 920248058, now seen corresponding path program 1 times [2019-11-26 02:21:14,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:21:14,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598267512] [2019-11-26 02:21:14,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:21:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:21:15,016 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 02:21:15,016 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598267512] [2019-11-26 02:21:15,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:21:15,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:21:15,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864414271] [2019-11-26 02:21:15,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:21:15,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:21:15,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:21:15,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:21:15,018 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand 3 states. [2019-11-26 02:21:15,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:21:15,038 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-11-26 02:21:15,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:21:15,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-26 02:21:15,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:21:15,039 INFO L225 Difference]: With dead ends: 15 [2019-11-26 02:21:15,040 INFO L226 Difference]: Without dead ends: 14 [2019-11-26 02:21:15,040 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:21:15,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-26 02:21:15,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-11-26 02:21:15,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-26 02:21:15,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-11-26 02:21:15,044 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 6 [2019-11-26 02:21:15,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:21:15,044 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-11-26 02:21:15,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:21:15,044 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-11-26 02:21:15,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:21:15,045 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:21:15,045 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:21:15,045 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:21:15,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:21:15,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1537629357, now seen corresponding path program 1 times [2019-11-26 02:21:15,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:21:15,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922594984] [2019-11-26 02:21:15,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:21:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:21:15,066 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 02:21:15,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922594984] [2019-11-26 02:21:15,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:21:15,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:21:15,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253932148] [2019-11-26 02:21:15,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:21:15,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:21:15,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:21:15,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:21:15,069 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 3 states. [2019-11-26 02:21:15,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:21:15,085 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2019-11-26 02:21:15,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:21:15,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-26 02:21:15,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:21:15,086 INFO L225 Difference]: With dead ends: 14 [2019-11-26 02:21:15,086 INFO L226 Difference]: Without dead ends: 13 [2019-11-26 02:21:15,087 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:21:15,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-26 02:21:15,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-11-26 02:21:15,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-26 02:21:15,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-11-26 02:21:15,090 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 7 [2019-11-26 02:21:15,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:21:15,090 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-26 02:21:15,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:21:15,091 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2019-11-26 02:21:15,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:21:15,091 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:21:15,091 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:21:15,092 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:21:15,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:21:15,092 INFO L82 PathProgramCache]: Analyzing trace with hash -193060491, now seen corresponding path program 1 times [2019-11-26 02:21:15,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:21:15,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251449615] [2019-11-26 02:21:15,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:21:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:21:15,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:21:15,123 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251449615] [2019-11-26 02:21:15,124 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094887225] [2019-11-26 02:21:15,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:21:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:21:15,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-26 02:21:15,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:21:15,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:21:15,195 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:21:15,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:21:15,220 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [941594818] [2019-11-26 02:21:15,240 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-11-26 02:21:15,241 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:21:15,246 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:21:15,252 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:21:15,253 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:21:15,431 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:21:15,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:21:15,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 3, 3] total 10 [2019-11-26 02:21:15,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931961484] [2019-11-26 02:21:15,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:21:15,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:21:15,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:21:15,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:21:15,592 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand 7 states. [2019-11-26 02:21:15,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:21:15,786 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2019-11-26 02:21:15,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:21:15,788 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2019-11-26 02:21:15,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:21:15,789 INFO L225 Difference]: With dead ends: 34 [2019-11-26 02:21:15,789 INFO L226 Difference]: Without dead ends: 24 [2019-11-26 02:21:15,790 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2019-11-26 02:21:15,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-26 02:21:15,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2019-11-26 02:21:15,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-26 02:21:15,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-11-26 02:21:15,794 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 9 [2019-11-26 02:21:15,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:21:15,794 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-26 02:21:15,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:21:15,795 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-11-26 02:21:15,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:21:15,795 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:21:15,795 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:21:15,996 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:21:15,996 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:21:15,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:21:15,997 INFO L82 PathProgramCache]: Analyzing trace with hash -31265154, now seen corresponding path program 1 times [2019-11-26 02:21:15,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:21:15,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577011011] [2019-11-26 02:21:15,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:21:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:21:16,029 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:21:16,029 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577011011] [2019-11-26 02:21:16,030 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633719368] [2019-11-26 02:21:16,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:21:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:21:16,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-26 02:21:16,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:21:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:21:16,103 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:21:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:21:16,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1214954812] [2019-11-26 02:21:16,130 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2019-11-26 02:21:16,130 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:21:16,131 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:21:16,131 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:21:16,131 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:21:16,256 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:21:16,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:21:16,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3, 6, 6] total 15 [2019-11-26 02:21:16,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617184693] [2019-11-26 02:21:16,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:21:16,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:21:16,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:21:16,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2019-11-26 02:21:16,492 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 8 states. [2019-11-26 02:21:16,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:21:16,840 INFO L93 Difference]: Finished difference Result 37 states and 46 transitions. [2019-11-26 02:21:16,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-26 02:21:16,840 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-11-26 02:21:16,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:21:16,841 INFO L225 Difference]: With dead ends: 37 [2019-11-26 02:21:16,841 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:21:16,842 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2019-11-26 02:21:16,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:21:16,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:21:16,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:21:16,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:21:16,842 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-26 02:21:16,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:21:16,843 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:21:16,843 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:21:16,843 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:21:16,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:21:17,044 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:21:17,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:21:17,137 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-26 02:21:17,137 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:21:17,137 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-26 02:21:17,137 INFO L444 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2019-11-26 02:21:17,137 INFO L444 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-11-26 02:21:17,137 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2019-11-26 02:21:17,138 INFO L444 ceAbstractionStarter]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2019-11-26 02:21:17,138 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 27) the Hoare annotation is: (and (<= ULTIMATE.start_main_~n~0 1073741823) (<= 0 ULTIMATE.start_main_~n~0) (<= ULTIMATE.start_main_~x~0 1073741823)) [2019-11-26 02:21:17,138 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-26 02:21:17,138 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-26 02:21:17,138 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:21:17,139 INFO L444 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2019-11-26 02:21:17,139 INFO L440 ceAbstractionStarter]: At program point L22-2(lines 22 24) the Hoare annotation is: (and (<= ULTIMATE.start_main_~n~0 1073741823) (<= 0 ULTIMATE.start_main_~n~0) (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 1073741823) (<= ULTIMATE.start_main_~y~0 2147483647) (<= 0 ULTIMATE.start_main_~x~0)) [2019-11-26 02:21:17,139 INFO L444 ceAbstractionStarter]: For program point L18(lines 18 28) no Hoare annotation was computed. [2019-11-26 02:21:17,139 INFO L447 ceAbstractionStarter]: At program point L18-1(lines 18 28) the Hoare annotation is: true [2019-11-26 02:21:17,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:21:17 BoogieIcfgContainer [2019-11-26 02:21:17,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:21:17,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:21:17,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:21:17,165 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:21:17,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:21:14" (3/4) ... [2019-11-26 02:21:17,168 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:21:17,179 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-26 02:21:17,179 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:21:17,179 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:21:17,226 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3d971787-01b7-49a2-b080-96e886e30c99/bin/utaipan/witness.graphml [2019-11-26 02:21:17,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:21:17,228 INFO L168 Benchmark]: Toolchain (without parser) took 3233.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 944.8 MB in the beginning and 862.2 MB in the end (delta: 82.5 MB). Peak memory consumption was 193.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:21:17,229 INFO L168 Benchmark]: CDTParser took 0.24 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 02:21:17,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:21:17,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:21:17,230 INFO L168 Benchmark]: Boogie Preprocessor took 26.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:21:17,231 INFO L168 Benchmark]: RCFGBuilder took 225.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:21:17,231 INFO L168 Benchmark]: TraceAbstraction took 2574.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 862.2 MB in the end (delta: 226.1 MB). Peak memory consumption was 226.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:21:17,232 INFO L168 Benchmark]: Witness Printer took 61.65 ms. Allocated memory is still 1.1 GB. Free memory is still 862.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:21:17,234 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 314.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 225.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2574.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 862.2 MB in the end (delta: 226.1 MB). Peak memory consumption was 226.1 MB. Max. memory is 11.5 GB. * Witness Printer took 61.65 ms. Allocated memory is still 1.1 GB. Free memory is still 862.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (n <= 1073741823 && 0 <= n) && x <= 1073741823 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((n <= 1073741823 && 0 <= n) && 1 <= y) && x <= 1073741823) && y <= 2147483647) && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 98 SDslu, 9 SDs, 0 SdLazy, 124 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 42 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=5, 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, 6 MinimizatonAttempts, 13 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 11 NumberOfFragments, 30 HoareAnnotationTreeSize, 3 FomulaSimplifications, 191 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 107 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 1684 SizeOfPredicates, 4 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 8/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 317, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 16, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 41, TOOLS_POST_TIME[ms]: 39, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 41, TOOLS_QUANTIFIERELIM_TIME[ms]: 30, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 8, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 78, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME[ms]: 43, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 135, DOMAIN_ISSUBSETEQ_APPLICATIONS: 7, DOMAIN_ISSUBSETEQ_TIME[ms]: 23, DOMAIN_ISBOTTOM_APPLICATIONS: 16, DOMAIN_ISBOTTOM_TIME[ms]: 20, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 192, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 191, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 7, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 13, DAG_COMPRESSION_PROCESSED_NODES: 174, DAG_COMPRESSION_RETAINED_NODES: 60, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...