./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/sumt2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sumt2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2cb759cd38361d75aae36cfe760e81de0f537121 ......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 21:24:48,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:24:48,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:24:48,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:24:48,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:24:48,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:24:48,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:24:48,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:24:48,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:24:48,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:24:48,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:24:48,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:24:48,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:24:48,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:24:48,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:24:48,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:24:48,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:24:48,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:24:48,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:24:48,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:24:48,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:24:48,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:24:48,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:24:48,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:24:48,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:24:48,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:24:48,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:24:48,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:24:48,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:24:48,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:24:48,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:24:48,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:24:48,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:24:48,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:24:48,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:24:48,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:24:48,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:24:48,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:24:48,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:24:48,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:24:48,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:24:48,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 21:24:48,219 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:24:48,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:24:48,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:24:48,220 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:24:48,220 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:24:48,220 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:24:48,221 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 21:24:48,221 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:24:48,221 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:24:48,221 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 21:24:48,221 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 21:24:48,221 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:24:48,222 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 21:24:48,222 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 21:24:48,222 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 21:24:48,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:24:48,223 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:24:48,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 21:24:48,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:24:48,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:24:48,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:24:48,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:24:48,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:24:48,224 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:24:48,224 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:24:48,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:24:48,225 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:24:48,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:24:48,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:24:48,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:24:48,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:24:48,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:24:48,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:24:48,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:24:48,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:24:48,226 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 21:24:48,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 21:24:48,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:24:48,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:24:48,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:24:48,227 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_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2cb759cd38361d75aae36cfe760e81de0f537121 [2019-12-07 21:24:48,327 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:24:48,336 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:24:48,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:24:48,339 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:24:48,340 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:24:48,340 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/bin/utaipan/../../sv-benchmarks/c/loops-crafted-1/sumt2.c [2019-12-07 21:24:48,377 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/bin/utaipan/data/8686ac600/b566c94ebfa149aebf237daf01c9437f/FLAG1514948ca [2019-12-07 21:24:48,708 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:24:48,709 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/sv-benchmarks/c/loops-crafted-1/sumt2.c [2019-12-07 21:24:48,712 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/bin/utaipan/data/8686ac600/b566c94ebfa149aebf237daf01c9437f/FLAG1514948ca [2019-12-07 21:24:48,721 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/bin/utaipan/data/8686ac600/b566c94ebfa149aebf237daf01c9437f [2019-12-07 21:24:48,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:24:48,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:24:48,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:24:48,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:24:48,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:24:48,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:24:48" (1/1) ... [2019-12-07 21:24:48,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@136769e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:24:48, skipping insertion in model container [2019-12-07 21:24:48,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:24:48" (1/1) ... [2019-12-07 21:24:48,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:24:48,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:24:48,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:24:48,844 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:24:48,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:24:48,901 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:24:48,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:24:48 WrapperNode [2019-12-07 21:24:48,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:24:48,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:24:48,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:24:48,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:24:48,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:24:48" (1/1) ... [2019-12-07 21:24:48,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:24:48" (1/1) ... [2019-12-07 21:24:48,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:24:48,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:24:48,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:24:48,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:24:48,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:24:48" (1/1) ... [2019-12-07 21:24:48,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:24:48" (1/1) ... [2019-12-07 21:24:48,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:24:48" (1/1) ... [2019-12-07 21:24:48,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:24:48" (1/1) ... [2019-12-07 21:24:48,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:24:48" (1/1) ... [2019-12-07 21:24:48,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:24:48" (1/1) ... [2019-12-07 21:24:48,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:24:48" (1/1) ... [2019-12-07 21:24:48,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:24:48,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:24:48,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:24:48,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:24:48,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:24:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/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 [2019-12-07 21:24:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:24:48,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:24:49,126 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:24:49,126 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 21:24:49,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:24:49 BoogieIcfgContainer [2019-12-07 21:24:49,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:24:49,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:24:49,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:24:49,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:24:49,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:24:48" (1/3) ... [2019-12-07 21:24:49,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252e2acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:24:49, skipping insertion in model container [2019-12-07 21:24:49,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:24:48" (2/3) ... [2019-12-07 21:24:49,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252e2acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:24:49, skipping insertion in model container [2019-12-07 21:24:49,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:24:49" (3/3) ... [2019-12-07 21:24:49,132 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt2.c [2019-12-07 21:24:49,138 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:24:49,142 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 21:24:49,149 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 21:24:49,163 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:24:49,163 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:24:49,163 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:24:49,163 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:24:49,164 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:24:49,164 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:24:49,164 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:24:49,164 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:24:49,172 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 21:24:49,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 21:24:49,175 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:24:49,176 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 21:24:49,176 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:24:49,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:24:49,180 INFO L82 PathProgramCache]: Analyzing trace with hash 67669777, now seen corresponding path program 1 times [2019-12-07 21:24:49,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 21:24:49,186 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751400727] [2019-12-07 21:24:49,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 21:24:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:24:49,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:24:49,364 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751400727] [2019-12-07 21:24:49,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:24:49,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 21:24:49,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580640647] [2019-12-07 21:24:49,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:24:49,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 21:24:49,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:24:49,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:24:49,383 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-12-07 21:24:49,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:24:49,431 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-12-07 21:24:49,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 21:24:49,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 21:24:49,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:24:49,437 INFO L225 Difference]: With dead ends: 14 [2019-12-07 21:24:49,437 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 21:24:49,439 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 21:24:49,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 21:24:49,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 21:24:49,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 21:24:49,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 21:24:49,455 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-12-07 21:24:49,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:24:49,455 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 21:24:49,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:24:49,455 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 21:24:49,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 21:24:49,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 21:24:49,485 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 21:24:49,486 INFO L249 CegarLoopResult]: At program point L27(lines 11 28) the Hoare annotation is: true [2019-12-07 21:24:49,486 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-12-07 21:24:49,486 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 21:24:49,486 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-12-07 21:24:49,486 INFO L242 CegarLoopResult]: At program point L18-2(lines 18 25) the Hoare annotation is: (let ((.cse2 (div ULTIMATE.start_main_~l~0 4294967296))) (let ((.cse1 (* 4294967296 .cse2)) (.cse0 (+ (* 4294967296 (div (+ ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0) 4294967296)) ULTIMATE.start_main_~l~0))) (and (< .cse0 (+ .cse1 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 1)) (<= (+ .cse1 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0) .cse0) (< 0 (+ .cse2 1))))) [2019-12-07 21:24:49,486 INFO L246 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2019-12-07 21:24:49,486 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-12-07 21:24:49,487 INFO L242 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: (let ((.cse2 (div ULTIMATE.start_main_~l~0 4294967296))) (let ((.cse1 (* 4294967296 .cse2)) (.cse0 (+ (* 4294967296 (div (+ ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0) 4294967296)) ULTIMATE.start_main_~l~0))) (and (< .cse0 (+ .cse1 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 1)) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ .cse1 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0) .cse0) (< 0 (+ .cse2 1))))) [2019-12-07 21:24:49,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:24:49 BoogieIcfgContainer [2019-12-07 21:24:49,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:24:49,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:24:49,500 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:24:49,500 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:24:49,501 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:24:49" (3/4) ... [2019-12-07 21:24:49,503 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 21:24:49,509 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-12-07 21:24:49,509 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 21:24:49,538 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8991a6b6-23b4-43b0-9186-334b7f1ae9cd/bin/utaipan/witness.graphml [2019-12-07 21:24:49,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:24:49,539 INFO L168 Benchmark]: Toolchain (without parser) took 815.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 940.0 MB in the beginning and 1.0 GB in the end (delta: -92.8 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-12-07 21:24:49,540 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:24:49,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 940.0 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 21:24:49,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.07 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. [2019-12-07 21:24:49,541 INFO L168 Benchmark]: Boogie Preprocessor took 14.20 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:24:49,541 INFO L168 Benchmark]: RCFGBuilder took 184.27 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: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:24:49,541 INFO L168 Benchmark]: TraceAbstraction took 372.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-12-07 21:24:49,542 INFO L168 Benchmark]: Witness Printer took 38.04 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:24:49,543 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 177.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 940.0 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.07 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 14.20 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 184.27 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: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 372.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 38.04 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (4294967296 * ((i + j) / 4294967296) + l < 4294967296 * (l / 4294967296) + i + j + 1 && 4294967296 * (l / 4294967296) + i + j <= 4294967296 * ((i + j) / 4294967296) + l) && 0 < l / 4294967296 + 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((4294967296 * ((i + j) / 4294967296) + l < 4294967296 * (l / 4294967296) + i + j + 1 && !(0 == cond)) && 4294967296 * (l / 4294967296) + i + j <= 4294967296 * ((i + j) / 4294967296) + l) && 0 < l / 4294967296 + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 7 SDslu, 6 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 95 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...