./Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i --full-output --rcfgbuilder.size.of.a.code.block SingleStatement --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0210da8c Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i ../../../trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --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 ebd700d2a774ad3ca11fe220b69fa701cbe412e1 --rcfgbuilder.size.of.a.code.block SingleStatement ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0210da8 [2018-10-22 09:44:53,151 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 09:44:53,152 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 09:44:53,166 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 09:44:53,166 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 09:44:53,168 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 09:44:53,172 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 09:44:53,174 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 09:44:53,177 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 09:44:53,178 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 09:44:53,180 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 09:44:53,180 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 09:44:53,181 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 09:44:53,182 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 09:44:53,183 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 09:44:53,184 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 09:44:53,185 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 09:44:53,187 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 09:44:53,189 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 09:44:53,191 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 09:44:53,192 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 09:44:53,193 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 09:44:53,196 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 09:44:53,196 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 09:44:53,197 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 09:44:53,197 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 09:44:53,198 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 09:44:53,200 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 09:44:53,201 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 09:44:53,202 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 09:44:53,202 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 09:44:53,203 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 09:44:53,203 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 09:44:53,203 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 09:44:53,205 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 09:44:53,206 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 09:44:53,206 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-22 09:44:53,222 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 09:44:53,222 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 09:44:53,223 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 09:44:53,223 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 09:44:53,223 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 09:44:53,223 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 09:44:53,224 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 09:44:53,225 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 09:44:53,225 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 09:44:53,225 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 09:44:53,225 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 09:44:53,226 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 09:44:53,226 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-22 09:44:53,226 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 09:44:53,227 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-22 09:44:53,228 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 09:44:53,228 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 09:44:53,228 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 09:44:53,228 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 09:44:53,228 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-22 09:44:53,229 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 09:44:53,229 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 09:44:53,229 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 09:44:53,229 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 09:44:53,230 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 09:44:53,231 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 09:44:53,231 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 09:44:53,231 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 09:44:53,231 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 09:44:53,232 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 09:44:53,232 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 09:44:53,232 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 09:44:53,232 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 09:44:53,232 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 09:44:53,233 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux 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 -> ebd700d2a774ad3ca11fe220b69fa701cbe412e1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2018-10-22 09:44:53,285 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 09:44:53,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 09:44:53,306 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 09:44:53,308 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 09:44:53,308 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 09:44:53,310 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i [2018-10-22 09:44:53,376 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d7d3820d0/e39a7a9193bf43af81f5247130b1613d/FLAG0bc3dc1a3 [2018-10-22 09:44:53,802 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 09:44:53,802 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i [2018-10-22 09:44:53,811 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d7d3820d0/e39a7a9193bf43af81f5247130b1613d/FLAG0bc3dc1a3 [2018-10-22 09:44:53,830 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d7d3820d0/e39a7a9193bf43af81f5247130b1613d [2018-10-22 09:44:53,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 09:44:53,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-22 09:44:53,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 09:44:53,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 09:44:53,845 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 09:44:53,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:44:53" (1/1) ... [2018-10-22 09:44:53,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bfb39a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:53, skipping insertion in model container [2018-10-22 09:44:53,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:44:53" (1/1) ... [2018-10-22 09:44:53,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 09:44:53,886 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 09:44:54,074 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 09:44:54,081 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 09:44:54,113 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 09:44:54,130 INFO L193 MainTranslator]: Completed translation [2018-10-22 09:44:54,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:54 WrapperNode [2018-10-22 09:44:54,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 09:44:54,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 09:44:54,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 09:44:54,132 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 09:44:54,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:54" (1/1) ... [2018-10-22 09:44:54,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:54" (1/1) ... [2018-10-22 09:44:54,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 09:44:54,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 09:44:54,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 09:44:54,156 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 09:44:54,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:54" (1/1) ... [2018-10-22 09:44:54,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:54" (1/1) ... [2018-10-22 09:44:54,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:54" (1/1) ... [2018-10-22 09:44:54,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:54" (1/1) ... [2018-10-22 09:44:54,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:54" (1/1) ... [2018-10-22 09:44:54,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:54" (1/1) ... [2018-10-22 09:44:54,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:54" (1/1) ... [2018-10-22 09:44:54,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 09:44:54,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 09:44:54,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 09:44:54,190 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 09:44:54,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 09:44:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 09:44:54,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 09:44:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-10-22 09:44:54,345 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-10-22 09:44:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 09:44:54,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 09:44:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 09:44:54,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 09:44:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 09:44:54,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 09:44:54,926 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 09:44:54,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:44:54 BoogieIcfgContainer [2018-10-22 09:44:54,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 09:44:54,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 09:44:54,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 09:44:54,939 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 09:44:54,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:44:53" (1/3) ... [2018-10-22 09:44:54,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49591e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:44:54, skipping insertion in model container [2018-10-22 09:44:54,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:44:54" (2/3) ... [2018-10-22 09:44:54,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49591e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:44:54, skipping insertion in model container [2018-10-22 09:44:54,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:44:54" (3/3) ... [2018-10-22 09:44:54,944 INFO L112 eAbstractionObserver]: Analyzing ICFG trex04_true-unreach-call_false-termination.i [2018-10-22 09:44:54,954 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 09:44:54,968 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 09:44:54,986 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 09:44:55,032 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 09:44:55,033 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 09:44:55,033 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 09:44:55,033 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 09:44:55,033 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 09:44:55,033 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 09:44:55,034 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 09:44:55,034 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 09:44:55,034 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 09:44:55,070 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-10-22 09:44:55,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-22 09:44:55,078 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 09:44:55,080 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 09:44:55,082 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 09:44:55,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 09:44:55,091 INFO L82 PathProgramCache]: Analyzing trace with hash 878867693, now seen corresponding path program 1 times [2018-10-22 09:44:55,094 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 09:44:55,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:44:55,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:44:55,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:44:55,148 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 09:44:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:44:55,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 09:44:55,255 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 09:44:55,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 09:44:55,255 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 09:44:55,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 09:44:55,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 09:44:55,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 09:44:55,286 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2018-10-22 09:44:55,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 09:44:55,326 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2018-10-22 09:44:55,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 09:44:55,330 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2018-10-22 09:44:55,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 09:44:55,347 INFO L225 Difference]: With dead ends: 67 [2018-10-22 09:44:55,347 INFO L226 Difference]: Without dead ends: 49 [2018-10-22 09:44:55,353 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 09:44:55,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-22 09:44:55,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-10-22 09:44:55,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-10-22 09:44:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2018-10-22 09:44:55,400 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 26 [2018-10-22 09:44:55,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 09:44:55,401 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2018-10-22 09:44:55,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 09:44:55,401 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2018-10-22 09:44:55,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-22 09:44:55,404 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 09:44:55,404 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 09:44:55,406 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 09:44:55,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 09:44:55,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1192136938, now seen corresponding path program 1 times [2018-10-22 09:44:55,407 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 09:44:55,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:44:55,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:44:55,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:44:55,409 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 09:44:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:44:55,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 09:44:55,557 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 09:44:55,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-22 09:44:55,558 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 09:44:55,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 09:44:55,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 09:44:55,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-22 09:44:55,560 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand 5 states. [2018-10-22 09:44:55,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 09:44:55,669 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2018-10-22 09:44:55,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 09:44:55,669 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-10-22 09:44:55,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 09:44:55,670 INFO L225 Difference]: With dead ends: 49 [2018-10-22 09:44:55,670 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 09:44:55,673 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-22 09:44:55,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 09:44:55,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 09:44:55,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 09:44:55,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 09:44:55,675 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-10-22 09:44:55,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 09:44:55,675 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 09:44:55,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 09:44:55,675 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 09:44:55,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 09:44:55,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 09:44:55,716 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-22 09:44:55,716 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-22 09:44:55,716 INFO L425 ceAbstractionStarter]: For program point fooEXIT(lines 11 18) no Hoare annotation was computed. [2018-10-22 09:44:55,716 INFO L428 ceAbstractionStarter]: At program point fooENTRY(lines 11 18) the Hoare annotation is: true [2018-10-22 09:44:55,716 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-10-22 09:44:55,717 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-22 09:44:55,719 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-10-22 09:44:55,719 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-10-22 09:44:55,719 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-10-22 09:44:55,719 INFO L425 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-10-22 09:44:55,719 INFO L425 ceAbstractionStarter]: For program point L16-2(line 16) no Hoare annotation was computed. [2018-10-22 09:44:55,720 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-10-22 09:44:55,721 INFO L425 ceAbstractionStarter]: For program point L15-2(line 15) no Hoare annotation was computed. [2018-10-22 09:44:55,721 INFO L425 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-10-22 09:44:55,721 INFO L425 ceAbstractionStarter]: For program point L15-3(line 15) no Hoare annotation was computed. [2018-10-22 09:44:55,721 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 11 18) no Hoare annotation was computed. [2018-10-22 09:44:55,721 INFO L425 ceAbstractionStarter]: For program point L14-3(line 14) no Hoare annotation was computed. [2018-10-22 09:44:55,721 INFO L425 ceAbstractionStarter]: For program point L15-5(lines 12 18) no Hoare annotation was computed. [2018-10-22 09:44:55,721 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 09:44:55,722 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-22 09:44:55,722 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-22 09:44:55,722 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 09:44:55,722 INFO L425 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-10-22 09:44:55,722 INFO L425 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-10-22 09:44:55,722 INFO L425 ceAbstractionStarter]: For program point L27-2(line 27) no Hoare annotation was computed. [2018-10-22 09:44:55,722 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 19 35) no Hoare annotation was computed. [2018-10-22 09:44:55,724 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-10-22 09:44:55,725 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-10-22 09:44:55,725 INFO L425 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-10-22 09:44:55,725 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-10-22 09:44:55,725 INFO L428 ceAbstractionStarter]: At program point L28-1(line 28) the Hoare annotation is: true [2018-10-22 09:44:55,725 INFO L425 ceAbstractionStarter]: For program point L28-3(lines 20 35) no Hoare annotation was computed. [2018-10-22 09:44:55,725 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-10-22 09:44:55,725 INFO L425 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-10-22 09:44:55,725 INFO L425 ceAbstractionStarter]: For program point L24-2(line 24) no Hoare annotation was computed. [2018-10-22 09:44:55,726 INFO L425 ceAbstractionStarter]: For program point L24-3(line 24) no Hoare annotation was computed. [2018-10-22 09:44:55,727 INFO L425 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-10-22 09:44:55,727 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-10-22 09:44:55,727 INFO L425 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-10-22 09:44:55,727 INFO L425 ceAbstractionStarter]: For program point L25-3(lines 20 35) no Hoare annotation was computed. [2018-10-22 09:44:55,727 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 19 35) no Hoare annotation was computed. [2018-10-22 09:44:55,727 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 33) no Hoare annotation was computed. [2018-10-22 09:44:55,728 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 19 35) the Hoare annotation is: true [2018-10-22 09:44:55,729 INFO L425 ceAbstractionStarter]: For program point L30-2(lines 20 35) no Hoare annotation was computed. [2018-10-22 09:44:55,729 INFO L421 ceAbstractionStarter]: At program point L30-3(lines 30 33) the Hoare annotation is: (<= main_~x~0 0) [2018-10-22 09:44:55,729 INFO L428 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: true [2018-10-22 09:44:55,729 INFO L425 ceAbstractionStarter]: For program point L26-2(line 26) no Hoare annotation was computed. [2018-10-22 09:44:55,729 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-10-22 09:44:55,729 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-10-22 09:44:55,729 INFO L425 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-10-22 09:44:55,730 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-22 09:44:55,730 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-22 09:44:55,730 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-22 09:44:55,730 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-22 09:44:55,730 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-22 09:44:55,730 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-22 09:44:55,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:44:55 BoogieIcfgContainer [2018-10-22 09:44:55,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 09:44:55,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-22 09:44:55,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-22 09:44:55,738 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-22 09:44:55,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:44:54" (3/4) ... [2018-10-22 09:44:55,743 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-22 09:44:55,751 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-22 09:44:55,752 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2018-10-22 09:44:55,752 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-22 09:44:55,752 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-22 09:44:55,758 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-10-22 09:44:55,758 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-10-22 09:44:55,758 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-22 09:44:55,820 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-22 09:44:55,821 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-22 09:44:55,821 INFO L168 Benchmark]: Toolchain (without parser) took 1986.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -130.2 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2018-10-22 09:44:55,823 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 09:44:55,826 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.52 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-22 09:44:55,827 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.04 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 09:44:55,828 INFO L168 Benchmark]: Boogie Preprocessor took 32.69 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-22 09:44:55,828 INFO L168 Benchmark]: RCFGBuilder took 738.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2018-10-22 09:44:55,831 INFO L168 Benchmark]: TraceAbstraction took 808.74 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: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2018-10-22 09:44:55,831 INFO L168 Benchmark]: Witness Printer took 83.41 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-10-22 09:44:55,836 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.52 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.04 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.69 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 738.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 808.74 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: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. * Witness Printer took 83.41 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: 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: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 117 SDtfs, 1 SDslu, 153 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 11 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 1457 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...