./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.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_d0f49d77-bb79-42dc-b303-10540287fe0a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/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 c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc ..................................................................................................................................................................................................................................................................................................................................................................... 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 02:48:14,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:48:14,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:48:15,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:48:15,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:48:15,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:48:15,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:48:15,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:48:15,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:48:15,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:48:15,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:48:15,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:48:15,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:48:15,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:48:15,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:48:15,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:48:15,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:48:15,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:48:15,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:48:15,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:48:15,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:48:15,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:48:15,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:48:15,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:48:15,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:48:15,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:48:15,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:48:15,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:48:15,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:48:15,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:48:15,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:48:15,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:48:15,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:48:15,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:48:15,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:48:15,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:48:15,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:48:15,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:48:15,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:48:15,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:48:15,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:48:15,087 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-11-26 02:48:15,118 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:48:15,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:48:15,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:48:15,119 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:48:15,120 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:48:15,120 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:48:15,120 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:48:15,120 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:48:15,121 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:48:15,121 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:48:15,121 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:48:15,121 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:48:15,122 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:48:15,122 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:48:15,122 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:48:15,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:48:15,123 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:48:15,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:48:15,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:48:15,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:48:15,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:48:15,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:48:15,125 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:48:15,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:48:15,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:48:15,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:48:15,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:48:15,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:48:15,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:48:15,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:48:15,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:48:15,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:48:15,128 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:48:15,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:48:15,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:48:15,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:48:15,129 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_d0f49d77-bb79-42dc-b303-10540287fe0a/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 -> c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc [2019-11-26 02:48:15,301 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:48:15,314 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:48:15,317 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:48:15,319 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:48:15,319 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:48:15,320 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/bin/utaipan/../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2019-11-26 02:48:15,394 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/bin/utaipan/data/513a84ed8/deb223c3b38443899047ece4ba5c4f36/FLAGbcf8408b0 [2019-11-26 02:48:15,908 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:48:15,909 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2019-11-26 02:48:15,915 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/bin/utaipan/data/513a84ed8/deb223c3b38443899047ece4ba5c4f36/FLAGbcf8408b0 [2019-11-26 02:48:16,232 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/bin/utaipan/data/513a84ed8/deb223c3b38443899047ece4ba5c4f36 [2019-11-26 02:48:16,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:48:16,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:48:16,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:48:16,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:48:16,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:48:16,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:48:16" (1/1) ... [2019-11-26 02:48:16,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cbe7639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:16, skipping insertion in model container [2019-11-26 02:48:16,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:48:16" (1/1) ... [2019-11-26 02:48:16,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:48:16,290 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:48:16,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:48:16,509 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:48:16,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:48:16,641 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:48:16,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:16 WrapperNode [2019-11-26 02:48:16,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:48:16,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:48:16,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:48:16,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:48:16,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:16" (1/1) ... [2019-11-26 02:48:16,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:16" (1/1) ... [2019-11-26 02:48:16,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:48:16,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:48:16,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:48:16,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:48:16,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:16" (1/1) ... [2019-11-26 02:48:16,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:16" (1/1) ... [2019-11-26 02:48:16,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:16" (1/1) ... [2019-11-26 02:48:16,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:16" (1/1) ... [2019-11-26 02:48:16,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:16" (1/1) ... [2019-11-26 02:48:16,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:16" (1/1) ... [2019-11-26 02:48:16,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:16" (1/1) ... [2019-11-26 02:48:16,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:48:16,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:48:16,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:48:16,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:48:16,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/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 02:48:16,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:48:16,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:48:16,941 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:48:16,941 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-26 02:48:16,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:48:16 BoogieIcfgContainer [2019-11-26 02:48:16,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:48:16,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:48:16,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:48:16,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:48:16,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:48:16" (1/3) ... [2019-11-26 02:48:16,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f03a8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:48:16, skipping insertion in model container [2019-11-26 02:48:16,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:16" (2/3) ... [2019-11-26 02:48:16,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f03a8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:48:16, skipping insertion in model container [2019-11-26 02:48:16,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:48:16" (3/3) ... [2019-11-26 02:48:16,949 INFO L109 eAbstractionObserver]: Analyzing ICFG Cairo_step2-1.c [2019-11-26 02:48:16,965 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:48:16,971 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-26 02:48:16,987 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-26 02:48:17,031 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:48:17,033 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:48:17,033 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:48:17,034 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:48:17,034 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:48:17,034 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:48:17,034 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:48:17,034 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:48:17,049 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-26 02:48:17,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:48:17,054 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:48:17,055 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:48:17,055 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:48:17,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:48:17,062 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2019-11-26 02:48:17,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:48:17,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579889048] [2019-11-26 02:48:17,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:48:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:48:17,197 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 02:48:17,197 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579889048] [2019-11-26 02:48:17,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:48:17,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-26 02:48:17,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766414303] [2019-11-26 02:48:17,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:48:17,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:48:17,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:48:17,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:48:17,220 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2019-11-26 02:48:17,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:48:17,252 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-11-26 02:48:17,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:48:17,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-26 02:48:17,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:48:17,260 INFO L225 Difference]: With dead ends: 9 [2019-11-26 02:48:17,260 INFO L226 Difference]: Without dead ends: 6 [2019-11-26 02:48:17,263 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:48:17,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-11-26 02:48:17,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-11-26 02:48:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-26 02:48:17,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-11-26 02:48:17,292 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-11-26 02:48:17,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:48:17,293 INFO L462 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-11-26 02:48:17,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:48:17,293 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-11-26 02:48:17,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:48:17,293 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:48:17,294 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-26 02:48:17,294 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:48:17,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:48:17,294 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2019-11-26 02:48:17,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:48:17,295 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529334151] [2019-11-26 02:48:17,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:48:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:48:17,324 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 02:48:17,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529334151] [2019-11-26 02:48:17,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:48:17,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:48:17,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065514627] [2019-11-26 02:48:17,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:48:17,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:48:17,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:48:17,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:48:17,328 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 3 states. [2019-11-26 02:48:17,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:48:17,352 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-11-26 02:48:17,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:48:17,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-26 02:48:17,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:48:17,353 INFO L225 Difference]: With dead ends: 10 [2019-11-26 02:48:17,353 INFO L226 Difference]: Without dead ends: 9 [2019-11-26 02:48:17,354 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 02:48:17,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-26 02:48:17,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-26 02:48:17,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-26 02:48:17,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-26 02:48:17,357 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-26 02:48:17,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:48:17,358 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-26 02:48:17,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:48:17,358 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-26 02:48:17,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:48:17,359 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:48:17,359 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2019-11-26 02:48:17,359 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:48:17,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:48:17,360 INFO L82 PathProgramCache]: Analyzing trace with hash -423045501, now seen corresponding path program 1 times [2019-11-26 02:48:17,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:48:17,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589989242] [2019-11-26 02:48:17,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:48:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:48:17,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:48:17,397 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589989242] [2019-11-26 02:48:17,397 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027464108] [2019-11-26 02:48:17,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/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 02:48:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:48:17,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-26 02:48:17,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:48:17,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:48:17,464 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:48:17,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:48:17,495 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1753283489] [2019-11-26 02:48:17,514 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2019-11-26 02:48:17,514 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:48:17,519 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:48:17,525 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:48:17,525 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:48:17,662 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:48:17,897 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 6 [2019-11-26 02:48:17,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:48:17,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3, 3] total 8 [2019-11-26 02:48:17,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898942855] [2019-11-26 02:48:17,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:48:17,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:48:17,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:48:17,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:48:17,930 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2019-11-26 02:48:17,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:48:17,946 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-26 02:48:17,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:48:17,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-11-26 02:48:17,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:48:17,947 INFO L225 Difference]: With dead ends: 9 [2019-11-26 02:48:17,948 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:48:17,948 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:48:17,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:48:17,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:48:17,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:48:17,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:48:17,949 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-26 02:48:17,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:48:17,950 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:48:17,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:48:17,950 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:48:17,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:48:18,154 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:48:18,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:48:18,207 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-11-26 02:48:18,207 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:48:18,207 INFO L444 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-11-26 02:48:18,207 INFO L444 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2019-11-26 02:48:18,207 INFO L444 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2019-11-26 02:48:18,208 INFO L440 ceAbstractionStarter]: At program point L15-1(lines 15 19) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-11-26 02:48:18,208 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-11-26 02:48:18,208 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:48:18,208 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 18) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (< 0 (+ ULTIMATE.start_main_~x~0 2))) [2019-11-26 02:48:18,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:48:18 BoogieIcfgContainer [2019-11-26 02:48:18,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:48:18,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:48:18,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:48:18,224 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:48:18,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:48:16" (3/4) ... [2019-11-26 02:48:18,229 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:48:18,239 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:48:18,239 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:48:18,239 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:48:18,294 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d0f49d77-bb79-42dc-b303-10540287fe0a/bin/utaipan/witness.graphml [2019-11-26 02:48:18,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:48:18,299 INFO L168 Benchmark]: Toolchain (without parser) took 2062.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -79.7 MB). Peak memory consumption was 52.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:48:18,300 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:48:18,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:48:18,301 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.72 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 02:48:18,302 INFO L168 Benchmark]: Boogie Preprocessor took 18.71 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 02:48:18,302 INFO L168 Benchmark]: RCFGBuilder took 244.86 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: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:48:18,303 INFO L168 Benchmark]: TraceAbstraction took 1280.39 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: 68.3 MB). Peak memory consumption was 68.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:48:18,303 INFO L168 Benchmark]: Witness Printer took 73.65 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:48:18,312 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 396.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.71 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 244.86 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: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1280.39 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: 68.3 MB). Peak memory consumption was 68.3 MB. Max. memory is 11.5 GB. * Witness Printer took 73.65 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x <= 2147483647 && 0 < x + 2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 2 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 12 SDslu, 0 SDs, 0 SdLazy, 21 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 15 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 634 SizeOfPredicates, 1 NumberOfNonLiveVariables, 17 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 149, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 11, TOOLS_POST_TIME[ms]: 11, 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: 11, TOOLS_QUANTIFIERELIM_TIME[ms]: 7, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 3, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 23, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 50, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 26, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME[ms]: 16, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 87, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 86, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, 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]: 3, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 9, DAG_COMPRESSION_PROCESSED_NODES: 35, DAG_COMPRESSION_RETAINED_NODES: 20, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...