./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/Rump_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/Rump_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4307611f131e0de710b212b3a12701bf382df8c7 ............................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/Rump_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4307611f131e0de710b212b3a12701bf382df8c7 .......................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:39:42,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:39:42,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:39:42,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:39:42,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:39:42,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:39:42,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:39:42,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:39:42,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:39:42,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:39:42,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:39:42,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:39:42,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:39:42,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:39:42,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:39:42,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:39:42,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:39:42,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:39:42,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:39:42,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:39:42,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:39:42,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:39:42,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:39:42,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:39:42,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:39:42,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:39:42,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:39:42,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:39:42,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:39:42,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:39:42,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:39:42,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:39:42,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:39:42,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:39:42,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:39:42,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:39:42,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:39:42,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:39:42,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:39:42,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:39:42,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:39:42,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:39:42,184 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:39:42,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:39:42,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:39:42,185 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:39:42,188 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:39:42,188 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:39:42,188 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:39:42,188 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:39:42,188 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:39:42,189 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:39:42,189 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:39:42,190 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:39:42,190 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:39:42,190 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:39:42,190 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:39:42,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:39:42,191 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:39:42,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:39:42,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:39:42,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:39:42,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:39:42,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:39:42,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:39:42,193 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:39:42,193 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:39:42,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:39:42,193 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:39:42,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:39:42,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:39:42,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:39:42,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:39:42,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:39:42,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:39:42,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:39:42,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:39:42,196 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:39:42,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:39:42,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:39:42,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:39:42,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:39:42,197 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4307611f131e0de710b212b3a12701bf382df8c7 [2020-11-28 07:39:42,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:39:42,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:39:42,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:39:42,469 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:39:42,469 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:39:42,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/../../sv-benchmarks/c/float-benchs/Rump_double.c [2020-11-28 07:39:42,540 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/data/d1a015ccc/4fbadc13caf8488ca829d0085de5f4c0/FLAG2e4c1c209 [2020-11-28 07:39:42,939 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:39:42,939 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/sv-benchmarks/c/float-benchs/Rump_double.c [2020-11-28 07:39:42,945 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/data/d1a015ccc/4fbadc13caf8488ca829d0085de5f4c0/FLAG2e4c1c209 [2020-11-28 07:39:43,359 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/data/d1a015ccc/4fbadc13caf8488ca829d0085de5f4c0 [2020-11-28 07:39:43,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:39:43,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:39:43,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:43,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:39:43,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:39:43,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1360a84c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43, skipping insertion in model container [2020-11-28 07:39:43,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:39:43,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:39:43,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:43,595 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:39:43,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:43,623 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:39:43,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43 WrapperNode [2020-11-28 07:39:43,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:43,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:43,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:39:43,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:39:43,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:43,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:39:43,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:39:43,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:39:43,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... [2020-11-28 07:39:43,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:39:43,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:39:43,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:39:43,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:39:43,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:39:43,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:39:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:39:43,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:39:43,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:39:43,960 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:39:43,961 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 07:39:43,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:43 BoogieIcfgContainer [2020-11-28 07:39:43,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:39:43,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:39:43,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:39:43,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:39:43,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:39:43" (1/3) ... [2020-11-28 07:39:43,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f7fdcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:43, skipping insertion in model container [2020-11-28 07:39:43,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:43" (2/3) ... [2020-11-28 07:39:43,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f7fdcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:43, skipping insertion in model container [2020-11-28 07:39:43,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:43" (3/3) ... [2020-11-28 07:39:43,981 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_double.c [2020-11-28 07:39:43,993 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:39:43,998 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:39:44,006 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:39:44,028 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:39:44,028 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:39:44,028 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:39:44,028 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:39:44,028 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:39:44,029 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:39:44,029 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:39:44,029 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:39:44,040 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-11-28 07:39:44,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 07:39:44,044 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:44,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 07:39:44,046 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:44,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:44,051 INFO L82 PathProgramCache]: Analyzing trace with hash 48212, now seen corresponding path program 1 times [2020-11-28 07:39:44,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:44,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156766571] [2020-11-28 07:39:44,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:39:44,167 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:39:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:39:44,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:39:44,205 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:39:44,206 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:39:44,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:39:44,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:39:44 BoogieIcfgContainer [2020-11-28 07:39:44,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:39:44,227 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:39:44,227 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:39:44,227 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:39:44,228 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:43" (3/4) ... [2020-11-28 07:39:44,231 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:39:44,231 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:39:44,233 INFO L168 Benchmark]: Toolchain (without parser) took 868.22 ms. Allocated memory is still 117.4 MB. Free memory was 86.9 MB in the beginning and 67.5 MB in the end (delta: 19.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:44,234 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory was 47.4 MB in the beginning and 47.3 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:44,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.81 ms. Allocated memory is still 117.4 MB. Free memory was 86.6 MB in the beginning and 94.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:44,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.34 ms. Allocated memory is still 117.4 MB. Free memory was 94.3 MB in the beginning and 93.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:44,236 INFO L168 Benchmark]: Boogie Preprocessor took 20.80 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 91.8 MB in the end (delta: 881.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:44,237 INFO L168 Benchmark]: RCFGBuilder took 286.18 ms. Allocated memory is still 117.4 MB. Free memory was 91.8 MB in the beginning and 80.1 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:44,238 INFO L168 Benchmark]: TraceAbstraction took 252.40 ms. Allocated memory is still 117.4 MB. Free memory was 79.7 MB in the beginning and 68.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:44,239 INFO L168 Benchmark]: Witness Printer took 4.38 ms. Allocated memory is still 117.4 MB. Free memory was 68.0 MB in the beginning and 67.5 MB in the end (delta: 442.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:44,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory was 47.4 MB in the beginning and 47.3 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.81 ms. Allocated memory is still 117.4 MB. Free memory was 86.6 MB in the beginning and 94.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.34 ms. Allocated memory is still 117.4 MB. Free memory was 94.3 MB in the beginning and 93.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.80 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 91.8 MB in the end (delta: 881.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 286.18 ms. Allocated memory is still 117.4 MB. Free memory was 91.8 MB in the beginning and 80.1 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 252.40 ms. Allocated memory is still 117.4 MB. Free memory was 79.7 MB in the beginning and 68.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.38 ms. Allocated memory is still 117.4 MB. Free memory was 68.0 MB in the beginning and 67.5 MB in the end (delta: 442.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 13. Possible FailurePath: [L10] double x,y,r; [L11] x = 77617. [L12] y = 33096. [L13] r = 333.75 * y*y*y*y*y*y + x*x * (11.0 * x*x*y*y - y*y*y*y*y*y - 121.0 * y*y*y*y - 2.0) + 5.5 * y*y*y*y*y*y*y*y + x / (2. * y) [L6] COND TRUE !(cond) [L3] __assert_fail("0", "Rump_double.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:39:46,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:39:46,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:39:46,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:39:46,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:39:46,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:39:46,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:39:46,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:39:46,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:39:46,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:39:46,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:39:46,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:39:46,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:39:46,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:39:46,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:39:46,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:39:46,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:39:46,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:39:46,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:39:46,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:39:46,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:39:46,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:39:46,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:39:46,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:39:46,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:39:46,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:39:46,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:39:46,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:39:46,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:39:46,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:39:46,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:39:46,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:39:46,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:39:46,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:39:46,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:39:46,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:39:46,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:39:46,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:39:46,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:39:46,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:39:46,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:39:46,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:39:46,926 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:39:46,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:39:46,929 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:39:46,929 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:39:46,930 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:39:46,930 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:39:46,930 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:39:46,930 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:39:46,930 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:39:46,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:39:46,933 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:39:46,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:39:46,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:39:46,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:39:46,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:39:46,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:39:46,934 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:39:46,935 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:39:46,935 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:39:46,935 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:39:46,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:39:46,935 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:39:46,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:39:46,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:39:46,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:39:46,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:39:46,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:39:46,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:39:46,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:39:46,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:39:46,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:39:46,937 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:39:46,938 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:39:46,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:39:46,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:39:46,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:39:46,939 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4307611f131e0de710b212b3a12701bf382df8c7 [2020-11-28 07:39:47,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:39:47,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:39:47,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:39:47,398 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:39:47,399 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:39:47,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/../../sv-benchmarks/c/float-benchs/Rump_double.c [2020-11-28 07:39:47,477 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/data/9a27463d7/a88498b07c9e468c9bbca95b89be35c1/FLAG3b3dbf3c9 [2020-11-28 07:39:48,001 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:39:48,003 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/sv-benchmarks/c/float-benchs/Rump_double.c [2020-11-28 07:39:48,009 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/data/9a27463d7/a88498b07c9e468c9bbca95b89be35c1/FLAG3b3dbf3c9 [2020-11-28 07:39:48,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/data/9a27463d7/a88498b07c9e468c9bbca95b89be35c1 [2020-11-28 07:39:48,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:39:48,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:39:48,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:48,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:39:48,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:39:48,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:48" (1/1) ... [2020-11-28 07:39:48,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4803cdcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48, skipping insertion in model container [2020-11-28 07:39:48,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:48" (1/1) ... [2020-11-28 07:39:48,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:39:48,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:39:48,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:48,604 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:39:48,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:48,661 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:39:48,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48 WrapperNode [2020-11-28 07:39:48,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:48,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:48,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:39:48,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:39:48,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48" (1/1) ... [2020-11-28 07:39:48,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48" (1/1) ... [2020-11-28 07:39:48,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:48,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:39:48,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:39:48,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:39:48,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48" (1/1) ... [2020-11-28 07:39:48,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48" (1/1) ... [2020-11-28 07:39:48,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48" (1/1) ... [2020-11-28 07:39:48,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48" (1/1) ... [2020-11-28 07:39:48,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48" (1/1) ... [2020-11-28 07:39:48,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48" (1/1) ... [2020-11-28 07:39:48,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48" (1/1) ... [2020-11-28 07:39:48,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:39:48,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:39:48,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:39:48,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:39:48,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:39:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:39:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:39:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:39:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:39:55,525 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:39:55,525 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 07:39:55,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:55 BoogieIcfgContainer [2020-11-28 07:39:55,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:39:55,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:39:55,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:39:55,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:39:55,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:39:48" (1/3) ... [2020-11-28 07:39:55,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6456e7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:55, skipping insertion in model container [2020-11-28 07:39:55,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:48" (2/3) ... [2020-11-28 07:39:55,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6456e7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:55, skipping insertion in model container [2020-11-28 07:39:55,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:55" (3/3) ... [2020-11-28 07:39:55,536 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_double.c [2020-11-28 07:39:55,547 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:39:55,551 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:39:55,562 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:39:55,585 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:39:55,586 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:39:55,586 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:39:55,586 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:39:55,586 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:39:55,587 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:39:55,587 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:39:55,587 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:39:55,604 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 07:39:55,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 07:39:55,608 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:55,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 07:39:55,609 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:55,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:55,615 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-28 07:39:55,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:39:55,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820300612] [2020-11-28 07:39:55,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 07:40:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:40:03,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 07:40:03,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:40:03,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:40:03,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:40:06,050 WARN L838 $PredicateComparison]: unable to prove that (fp.geq (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) is different from false [2020-11-28 07:40:08,201 WARN L860 $PredicateComparison]: unable to prove that (fp.geq (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) is different from true [2020-11-28 07:40:08,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:40:08,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820300612] [2020-11-28 07:40:08,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:40:08,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 07:40:08,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212220060] [2020-11-28 07:40:08,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:40:08,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:40:08,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:40:08,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=12, Unknown=2, NotChecked=6, Total=30 [2020-11-28 07:40:08,226 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-11-28 07:40:10,384 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) is different from true [2020-11-28 07:40:10,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:40:10,407 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-28 07:40:10,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:40:10,410 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-11-28 07:40:10,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:40:10,416 INFO L225 Difference]: With dead ends: 14 [2020-11-28 07:40:10,416 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:40:10,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=12, Invalid=13, Unknown=3, NotChecked=14, Total=42 [2020-11-28 07:40:10,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:40:10,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:40:10,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:40:10,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:40:10,444 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-28 07:40:10,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:40:10,444 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:40:10,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:40:10,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:40:10,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:40:10,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:40:10,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:40:10,703 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:40:10,703 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 07:40:10,704 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:40:10,704 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 07:40:10,704 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 07:40:10,704 INFO L270 CegarLoopResult]: At program point L16(lines 8 17) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-11-28 07:40:10,704 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-11-28 07:40:10,704 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-11-28 07:40:10,705 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 07:40:10,705 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-11-28 07:40:10,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:40:10 BoogieIcfgContainer [2020-11-28 07:40:10,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:40:10,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:40:10,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:40:10,720 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:40:10,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:55" (3/4) ... [2020-11-28 07:40:10,723 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:40:10,733 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 07:40:10,733 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 07:40:10,734 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 07:40:10,734 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:40:10,767 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7cbe1cc4-4942-46ac-8595-4881dd96301b/bin/utaipan/witness.graphml [2020-11-28 07:40:10,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:40:10,770 INFO L168 Benchmark]: Toolchain (without parser) took 22393.81 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 24.7 MB in the beginning and 42.4 MB in the end (delta: -17.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:40:10,770 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 48.2 MB. Free memory was 30.3 MB in the beginning and 30.2 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:40:10,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.84 ms. Allocated memory is still 48.2 MB. Free memory was 24.6 MB in the beginning and 25.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:10,772 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.43 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 25.8 MB in the beginning and 47.4 MB in the end (delta: -21.6 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:10,773 INFO L168 Benchmark]: Boogie Preprocessor took 66.23 ms. Allocated memory is still 62.9 MB. Free memory was 47.4 MB in the beginning and 46.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:10,774 INFO L168 Benchmark]: RCFGBuilder took 6738.69 ms. Allocated memory is still 62.9 MB. Free memory was 46.1 MB in the beginning and 35.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:10,774 INFO L168 Benchmark]: TraceAbstraction took 15189.43 ms. Allocated memory is still 62.9 MB. Free memory was 34.9 MB in the beginning and 44.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:10,775 INFO L168 Benchmark]: Witness Printer took 48.67 ms. Allocated memory is still 62.9 MB. Free memory was 44.7 MB in the beginning and 42.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:10,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 48.2 MB. Free memory was 30.3 MB in the beginning and 30.2 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 285.84 ms. Allocated memory is still 48.2 MB. Free memory was 24.6 MB in the beginning and 25.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.43 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 25.8 MB in the beginning and 47.4 MB in the end (delta: -21.6 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.23 ms. Allocated memory is still 62.9 MB. Free memory was 47.4 MB in the beginning and 46.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 6738.69 ms. Allocated memory is still 62.9 MB. Free memory was 46.1 MB in the beginning and 35.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15189.43 ms. Allocated memory is still 62.9 MB. Free memory was 34.9 MB in the beginning and 44.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 48.67 ms. Allocated memory is still 62.9 MB. Free memory was 44.7 MB in the beginning and 42.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 8]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 8 SDslu, 4 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 7.2s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 618 SizeOfPredicates, 6 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...