./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/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 b183a84398514a30f054101bd4fa282044f4519d ................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 20:43:17,067 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:43:17,068 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:43:17,079 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:43:17,079 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:43:17,080 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:43:17,081 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:43:17,088 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:43:17,089 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:43:17,090 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:43:17,091 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:43:17,091 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:43:17,092 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:43:17,093 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:43:17,094 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:43:17,095 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:43:17,096 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:43:17,098 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:43:17,100 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:43:17,101 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:43:17,102 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:43:17,103 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:43:17,106 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:43:17,106 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:43:17,108 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:43:17,109 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:43:17,110 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:43:17,111 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:43:17,112 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:43:17,113 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:43:17,113 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:43:17,115 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:43:17,115 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:43:17,115 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:43:17,116 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:43:17,117 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:43:17,117 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 20:43:17,130 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:43:17,131 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:43:17,131 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:43:17,132 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 20:43:17,132 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 20:43:17,132 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 20:43:17,132 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 20:43:17,132 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 20:43:17,132 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 20:43:17,132 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 20:43:17,133 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 20:43:17,133 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:43:17,135 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:43:17,135 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 20:43:17,135 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:43:17,135 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:43:17,135 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:43:17,136 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:43:17,136 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:43:17,136 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:43:17,136 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:43:17,136 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:43:17,136 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:43:17,137 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 20:43:17,137 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:43:17,137 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 20:43:17,137 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 20:43:17,137 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:43:17,138 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:43:17,138 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:43:17,138 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 20:43:17,138 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:43:17,138 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 20:43:17,138 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 20:43:17,138 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/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 -> b183a84398514a30f054101bd4fa282044f4519d [2018-10-26 20:43:17,171 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:43:17,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:43:17,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:43:17,187 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:43:17,188 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:43:17,188 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/utaipan/../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c.v+lhb-reducer.c [2018-10-26 20:43:17,242 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/utaipan/data/dbdd198df/d87fe33d7b654c05b574980e2aaf44ba/FLAG9ce6615d0 [2018-10-26 20:43:17,622 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:43:17,623 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c.v+lhb-reducer.c [2018-10-26 20:43:17,630 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/utaipan/data/dbdd198df/d87fe33d7b654c05b574980e2aaf44ba/FLAG9ce6615d0 [2018-10-26 20:43:17,642 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/utaipan/data/dbdd198df/d87fe33d7b654c05b574980e2aaf44ba [2018-10-26 20:43:17,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:43:17,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 20:43:17,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:43:17,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:43:17,651 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:43:17,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:43:17" (1/1) ... [2018-10-26 20:43:17,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccde937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:43:17, skipping insertion in model container [2018-10-26 20:43:17,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:43:17" (1/1) ... [2018-10-26 20:43:17,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:43:17,688 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:43:17,840 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:43:17,844 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:43:17,869 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:43:17,880 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:43:17,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:43:17 WrapperNode [2018-10-26 20:43:17,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:43:17,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 20:43:17,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 20:43:17,882 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 20:43:17,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:43:17" (1/1) ... [2018-10-26 20:43:17,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:43:17" (1/1) ... [2018-10-26 20:43:17,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 20:43:17,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:43:17,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:43:17,903 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:43:17,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:43:17" (1/1) ... [2018-10-26 20:43:17,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:43:17" (1/1) ... [2018-10-26 20:43:17,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:43:17" (1/1) ... [2018-10-26 20:43:17,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:43:17" (1/1) ... [2018-10-26 20:43:17,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:43:17" (1/1) ... [2018-10-26 20:43:17,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:43:17" (1/1) ... [2018-10-26 20:43:17,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:43:17" (1/1) ... [2018-10-26 20:43:17,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:43:17,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:43:17,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:43:17,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:43:17,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:43:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/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 [2018-10-26 20:43:18,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 20:43:18,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 20:43:18,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:43:18,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:43:18,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 20:43:18,053 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 20:43:18,589 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:43:18,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:43:18 BoogieIcfgContainer [2018-10-26 20:43:18,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:43:18,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 20:43:18,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 20:43:18,597 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 20:43:18,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:43:17" (1/3) ... [2018-10-26 20:43:18,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431967a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:43:18, skipping insertion in model container [2018-10-26 20:43:18,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:43:17" (2/3) ... [2018-10-26 20:43:18,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431967a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:43:18, skipping insertion in model container [2018-10-26 20:43:18,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:43:18" (3/3) ... [2018-10-26 20:43:18,601 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c.v+lhb-reducer.c [2018-10-26 20:43:18,612 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 20:43:18,621 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 20:43:18,643 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 20:43:18,688 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 20:43:18,689 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 20:43:18,689 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 20:43:18,689 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 20:43:18,689 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 20:43:18,689 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 20:43:18,689 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 20:43:18,689 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 20:43:18,713 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-10-26 20:43:18,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 20:43:18,720 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:43:18,720 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:43:18,729 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:43:18,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:43:18,737 INFO L82 PathProgramCache]: Analyzing trace with hash 446778609, now seen corresponding path program 1 times [2018-10-26 20:43:18,739 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:43:18,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:43:18,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:43:18,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:43:18,789 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:43:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:43:19,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:43:19,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:43:19,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 20:43:19,123 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 20:43:19,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 20:43:19,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 20:43:19,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:43:19,144 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2018-10-26 20:43:28,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:43:28,276 INFO L93 Difference]: Finished difference Result 62 states and 86 transitions. [2018-10-26 20:43:28,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 20:43:28,279 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-10-26 20:43:28,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:43:28,286 INFO L225 Difference]: With dead ends: 62 [2018-10-26 20:43:28,287 INFO L226 Difference]: Without dead ends: 30 [2018-10-26 20:43:28,289 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-26 20:43:28,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-10-26 20:43:28,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2018-10-26 20:43:28,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-10-26 20:43:28,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2018-10-26 20:43:28,324 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 15 [2018-10-26 20:43:28,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:43:28,325 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2018-10-26 20:43:28,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 20:43:28,325 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2018-10-26 20:43:28,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 20:43:28,327 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:43:28,327 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:43:28,327 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:43:28,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:43:28,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1003929308, now seen corresponding path program 1 times [2018-10-26 20:43:28,328 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:43:28,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:43:28,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:43:28,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:43:28,329 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:43:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:43:28,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:43:28,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:43:28,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 20:43:28,602 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 20:43:28,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 20:43:28,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 20:43:28,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:43:28,604 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand 4 states. [2018-10-26 20:43:34,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:43:34,149 INFO L93 Difference]: Finished difference Result 60 states and 76 transitions. [2018-10-26 20:43:34,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 20:43:34,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-10-26 20:43:34,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:43:34,154 INFO L225 Difference]: With dead ends: 60 [2018-10-26 20:43:34,154 INFO L226 Difference]: Without dead ends: 35 [2018-10-26 20:43:34,154 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:43:34,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-26 20:43:34,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-10-26 20:43:34,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-26 20:43:34,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2018-10-26 20:43:34,158 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 16 [2018-10-26 20:43:34,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:43:34,158 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2018-10-26 20:43:34,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 20:43:34,159 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2018-10-26 20:43:34,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 20:43:34,159 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:43:34,159 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:43:34,159 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:43:34,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:43:34,160 INFO L82 PathProgramCache]: Analyzing trace with hash -407154346, now seen corresponding path program 1 times [2018-10-26 20:43:34,160 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:43:34,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:43:34,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:43:34,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:43:34,161 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:43:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:43:36,388 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse4 (div c_main_~main__x~0 4294967296))) (let ((.cse2 (div (+ c_main_~main__x~0 (* (- 4294967296) .cse4)) 3))) (let ((.cse0 (* 4294967296 .cse4)) (.cse1 (* 3 .cse2))) (and (<= (+ .cse0 .cse1) c_main_~main__x~0) (< .cse0 (+ c_main_~main__x~0 1)) (<= c_main_~main__x~0 (+ .cse0 .cse2 2863311530)) (let ((.cse3 (* 1431655765 c_main_~main__x~0))) (<= .cse3 (+ (* 4294967296 (div (+ .cse3 (- 2863311531)) 4294967296)) 4294967295))) (<= c_main_~main__x~0 (+ .cse0 .cse1 2)))))) is different from false [2018-10-26 20:43:36,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:43:36,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:43:36,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 20:43:36,392 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 20:43:36,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 20:43:36,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 20:43:36,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2018-10-26 20:43:36,392 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand 4 states. [2018-10-26 20:43:38,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:43:38,544 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2018-10-26 20:43:38,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 20:43:38,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-10-26 20:43:38,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:43:38,546 INFO L225 Difference]: With dead ends: 51 [2018-10-26 20:43:38,546 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 20:43:38,546 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2018-10-26 20:43:38,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 20:43:38,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 20:43:38,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 20:43:38,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 20:43:38,547 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-10-26 20:43:38,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:43:38,547 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 20:43:38,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 20:43:38,548 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 20:43:38,548 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 20:43:38,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 20:43:40,799 WARN L179 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2018-10-26 20:43:40,801 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 20:43:40,801 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 20:43:40,801 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:43:40,801 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:43:40,801 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 20:43:40,801 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 20:43:40,801 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 20:43:40,801 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-10-26 20:43:40,802 INFO L425 ceAbstractionStarter]: For program point L126(lines 126 141) no Hoare annotation was computed. [2018-10-26 20:43:40,802 INFO L425 ceAbstractionStarter]: For program point L60(lines 60 82) no Hoare annotation was computed. [2018-10-26 20:43:40,802 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 14 149) no Hoare annotation was computed. [2018-10-26 20:43:40,802 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 143) no Hoare annotation was computed. [2018-10-26 20:43:40,802 INFO L428 ceAbstractionStarter]: At program point L81(lines 15 149) the Hoare annotation is: true [2018-10-26 20:43:40,802 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2018-10-26 20:43:40,802 INFO L425 ceAbstractionStarter]: For program point L115(lines 115 142) no Hoare annotation was computed. [2018-10-26 20:43:40,802 INFO L428 ceAbstractionStarter]: At program point L140(lines 23 143) the Hoare annotation is: true [2018-10-26 20:43:40,802 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 84) no Hoare annotation was computed. [2018-10-26 20:43:40,802 INFO L428 ceAbstractionStarter]: At program point L132(lines 23 143) the Hoare annotation is: true [2018-10-26 20:43:40,803 INFO L425 ceAbstractionStarter]: For program point L95(lines 95 104) no Hoare annotation was computed. [2018-10-26 20:43:40,803 INFO L421 ceAbstractionStarter]: At program point L120(lines 23 143) the Hoare annotation is: (let ((.cse0 (* 1431655765 main_~main__x~0))) (<= .cse0 (+ (* 4294967296 (div (+ .cse0 (- 2863311531)) 4294967296)) 4294967295))) [2018-10-26 20:43:40,803 INFO L421 ceAbstractionStarter]: At program point L54(lines 24 112) the Hoare annotation is: (let ((.cse0 (* 1431655765 main_~main__x~0))) (<= .cse0 (+ (* 4294967296 (div (+ .cse0 (- 2863311531)) 4294967296)) 4294967295))) [2018-10-26 20:43:40,803 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 148) no Hoare annotation was computed. [2018-10-26 20:43:40,803 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 83) no Hoare annotation was computed. [2018-10-26 20:43:40,803 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 14 149) no Hoare annotation was computed. [2018-10-26 20:43:40,803 INFO L421 ceAbstractionStarter]: At program point L42(lines 24 112) the Hoare annotation is: (let ((.cse0 (* 1431655765 main_~main__x~0))) (<= .cse0 (+ (* 4294967296 (div (+ .cse0 (- 2863311531)) 4294967296)) 4294967295))) [2018-10-26 20:43:40,803 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 14 149) the Hoare annotation is: true [2018-10-26 20:43:40,804 INFO L425 ceAbstractionStarter]: For program point L88(lines 88 110) no Hoare annotation was computed. [2018-10-26 20:43:40,804 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 111) no Hoare annotation was computed. [2018-10-26 20:43:40,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:43:40 BoogieIcfgContainer [2018-10-26 20:43:40,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 20:43:40,814 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:43:40,814 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:43:40,814 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:43:40,815 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:43:18" (3/4) ... [2018-10-26 20:43:40,818 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 20:43:40,823 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 20:43:40,824 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 20:43:40,828 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-10-26 20:43:40,828 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 20:43:40,879 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3264d452-d8a1-4c39-9b79-0fa2918878d7/bin-2019/utaipan/witness.graphml [2018-10-26 20:43:40,879 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:43:40,880 INFO L168 Benchmark]: Toolchain (without parser) took 23235.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 959.7 MB in the beginning and 1.1 GB in the end (delta: -113.5 MB). Peak memory consumption was 60.6 MB. Max. memory is 11.5 GB. [2018-10-26 20:43:40,880 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:43:40,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.75 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:43:40,881 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.53 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:43:40,881 INFO L168 Benchmark]: Boogie Preprocessor took 20.63 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:43:40,883 INFO L168 Benchmark]: RCFGBuilder took 666.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 946.2 MB in the beginning and 1.2 GB in the end (delta: -207.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-10-26 20:43:40,883 INFO L168 Benchmark]: TraceAbstraction took 22222.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 11.5 GB. [2018-10-26 20:43:40,883 INFO L168 Benchmark]: Witness Printer took 65.02 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:43:40,885 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 234.75 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 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 21.53 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.63 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 666.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 946.2 MB in the beginning and 1.2 GB in the end (delta: -207.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22222.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 11.5 GB. * Witness Printer took 65.02 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 97]: 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: 24]: Loop Invariant Derived loop invariant: 1431655765 * main__x <= 4294967296 * ((1431655765 * main__x + -2863311531) / 4294967296) + 4294967295 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1431655765 * main__x <= 4294967296 * ((1431655765 * main__x + -2863311531) / 4294967296) + 4294967295 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1431655765 * main__x <= 4294967296 * ((1431655765 * main__x + -2863311531) / 4294967296) + 4294967295 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 1 error locations. SAFE Result, 22.1s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 16.8s AutomataDifference, 0.0s DeadEndRemovalTime, 2.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 84 SDtfs, 14 SDslu, 118 SDs, 0 SdLazy, 51 SolverSat, 5 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 15.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=2, 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 17 NumberOfFragments, 52 HoareAnnotationTreeSize, 10 FomulaSimplifications, 32 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 5243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...