./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.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_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/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 47ecd0c3a9cbb067bdc3246482dd87f3fbac8a0c ......................................................................................................................................................................................................................................................................................................... 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_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/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 47ecd0c3a9cbb067bdc3246482dd87f3fbac8a0c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 07:28:52,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:28:52,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:28:52,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:28:52,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:28:52,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:28:52,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:28:52,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:28:52,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:28:52,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:28:52,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:28:52,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:28:52,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:28:52,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:28:52,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:28:52,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:28:52,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:28:52,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:28:52,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:28:52,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:28:52,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:28:52,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:28:52,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:28:52,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:28:52,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:28:52,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:28:52,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:28:52,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:28:52,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:28:52,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:28:52,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:28:52,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:28:52,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:28:52,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:28:52,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:28:52,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:28:52,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:28:52,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:28:52,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:28:52,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:28:52,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:28:52,533 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:28:52,583 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:28:52,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:28:52,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:28:52,586 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:28:52,587 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:28:52,587 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:28:52,588 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:28:52,588 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:28:52,588 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:28:52,589 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:28:52,590 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:28:52,591 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:28:52,591 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:28:52,592 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:28:52,592 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:28:52,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:28:52,594 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:28:52,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:28:52,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:28:52,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:28:52,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:28:52,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:28:52,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:28:52,596 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:28:52,597 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:28:52,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:28:52,597 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:28:52,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:28:52,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:28:52,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:28:52,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:28:52,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:28:52,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:28:52,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:28:52,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:28:52,603 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:28:52,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:28:52,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:28:52,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:28:52,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:28:52,605 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_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47ecd0c3a9cbb067bdc3246482dd87f3fbac8a0c [2020-11-28 07:28:52,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:28:52,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:28:52,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:28:52,990 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:28:52,991 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:28:52,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2020-11-28 07:28:53,083 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/data/4688b1357/ef81356a58244b89944612eee8137c22/FLAGe7ee551e7 [2020-11-28 07:28:53,706 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:28:53,707 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2020-11-28 07:28:53,723 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/data/4688b1357/ef81356a58244b89944612eee8137c22/FLAGe7ee551e7 [2020-11-28 07:28:54,068 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/data/4688b1357/ef81356a58244b89944612eee8137c22 [2020-11-28 07:28:54,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:28:54,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:28:54,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:28:54,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:28:54,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:28:54,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:28:54" (1/1) ... [2020-11-28 07:28:54,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@700011c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:28:54, skipping insertion in model container [2020-11-28 07:28:54,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:28:54" (1/1) ... [2020-11-28 07:28:54,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:28:54,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:28:54,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:28:54,470 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:28:54,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:28:54,522 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:28:54,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:28:54 WrapperNode [2020-11-28 07:28:54,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:28:54,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:28:54,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:28:54,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:28:54,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:28:54" (1/1) ... [2020-11-28 07:28:54,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:28:54" (1/1) ... [2020-11-28 07:28:54,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:28:54,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:28:54,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:28:54,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:28:54,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:28:54" (1/1) ... [2020-11-28 07:28:54,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:28:54" (1/1) ... [2020-11-28 07:28:54,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:28:54" (1/1) ... [2020-11-28 07:28:54,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:28:54" (1/1) ... [2020-11-28 07:28:54,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:28:54" (1/1) ... [2020-11-28 07:28:54,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:28:54" (1/1) ... [2020-11-28 07:28:54,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:28:54" (1/1) ... [2020-11-28 07:28:54,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:28:54,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:28:54,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:28:54,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:28:54,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:28:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/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 07:28:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:28:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:28:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 07:28:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:28:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 07:28:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:28:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:28:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 07:28:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:28:55,487 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:28:55,488 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-28 07:28:55,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:28:55 BoogieIcfgContainer [2020-11-28 07:28:55,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:28:55,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:28:55,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:28:55,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:28:55,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:28:54" (1/3) ... [2020-11-28 07:28:55,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2d8e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:28:55, skipping insertion in model container [2020-11-28 07:28:55,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:28:54" (2/3) ... [2020-11-28 07:28:55,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2d8e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:28:55, skipping insertion in model container [2020-11-28 07:28:55,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:28:55" (3/3) ... [2020-11-28 07:28:55,505 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2020-11-28 07:28:55,519 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:28:55,526 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:28:55,540 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:28:55,580 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:28:55,582 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:28:55,582 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:28:55,583 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:28:55,583 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:28:55,583 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:28:55,583 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:28:55,583 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:28:55,597 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-28 07:28:55,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:28:55,601 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:28:55,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:28:55,602 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:28:55,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:28:55,608 INFO L82 PathProgramCache]: Analyzing trace with hash 915759457, now seen corresponding path program 1 times [2020-11-28 07:28:55,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:28:55,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735457494] [2020-11-28 07:28:55,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:28:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:28:55,764 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 07:28:55,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735457494] [2020-11-28 07:28:55,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:28:55,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:28:55,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664273418] [2020-11-28 07:28:55,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:28:55,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:28:55,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:28:55,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:28:55,791 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-11-28 07:28:55,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:28:55,810 INFO L93 Difference]: Finished difference Result 41 states and 65 transitions. [2020-11-28 07:28:55,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:28:55,812 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-28 07:28:55,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:28:55,822 INFO L225 Difference]: With dead ends: 41 [2020-11-28 07:28:55,822 INFO L226 Difference]: Without dead ends: 19 [2020-11-28 07:28:55,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:28:55,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-28 07:28:55,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-28 07:28:55,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-28 07:28:55,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2020-11-28 07:28:55,863 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 9 [2020-11-28 07:28:55,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:28:55,863 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2020-11-28 07:28:55,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:28:55,864 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-11-28 07:28:55,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:28:55,865 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:28:55,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:28:55,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:28:55,866 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:28:55,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:28:55,867 INFO L82 PathProgramCache]: Analyzing trace with hash 2061857498, now seen corresponding path program 1 times [2020-11-28 07:28:55,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:28:55,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431590279] [2020-11-28 07:28:55,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:28:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:28:55,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:28:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:28:56,036 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:28:56,077 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:28:56,077 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:28:56,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:28:56,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:28:56 BoogieIcfgContainer [2020-11-28 07:28:56,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:28:56,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:28:56,115 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:28:56,116 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:28:56,116 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:28:55" (3/4) ... [2020-11-28 07:28:56,119 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:28:56,119 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:28:56,125 INFO L168 Benchmark]: Toolchain (without parser) took 2046.62 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 50.3 MB in the beginning and 52.7 MB in the end (delta: -2.4 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:28:56,125 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 51.9 MB in the beginning and 51.9 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:28:56,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.90 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 50.1 MB in the beginning and 73.1 MB in the end (delta: -23.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:28:56,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.83 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 71.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:28:56,129 INFO L168 Benchmark]: Boogie Preprocessor took 85.57 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 69.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:28:56,130 INFO L168 Benchmark]: RCFGBuilder took 813.42 ms. Allocated memory is still 98.6 MB. Free memory was 69.7 MB in the beginning and 76.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:28:56,131 INFO L168 Benchmark]: TraceAbstraction took 619.06 ms. Allocated memory is still 98.6 MB. Free memory was 76.2 MB in the beginning and 52.7 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:28:56,132 INFO L168 Benchmark]: Witness Printer took 6.77 ms. Allocated memory is still 98.6 MB. Free memory is still 52.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:28:56,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 51.9 MB in the beginning and 51.9 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 443.90 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 50.1 MB in the beginning and 73.1 MB in the end (delta: -23.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.83 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 71.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.57 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 69.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 813.42 ms. Allocated memory is still 98.6 MB. Free memory was 69.7 MB in the beginning and 76.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 619.06 ms. Allocated memory is still 98.6 MB. Free memory was 76.2 MB in the beginning and 52.7 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 6.77 ms. Allocated memory is still 98.6 MB. Free memory is still 52.7 MB. There was no memory consumed. 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 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51, overapproximation of bitwiseAnd at line 30. Possible FailurePath: [L70] double x = 0.0 / 0.0; [L20] int signbit; [L21] int msw; [L22] unsigned int lsw; [L23] int exponent_less_1023; [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (msw) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lsw) = ew_u.parts.lsw [L30] signbit = msw & 0x80000000 [L31] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L32] COND FALSE !(exponent_less_1023 < 20) [L49] COND TRUE exponent_less_1023 > 51 [L50] COND TRUE exponent_less_1023 == 1024 [L51] return x + x; [L72] double res = trunc_double(x); [L17] return x != x; [L75] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1071.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 07:28:58,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:28:58,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:28:59,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:28:59,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:28:59,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:28:59,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:28:59,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:28:59,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:28:59,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:28:59,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:28:59,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:28:59,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:28:59,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:28:59,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:28:59,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:28:59,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:28:59,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:28:59,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:28:59,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:28:59,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:28:59,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:28:59,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:28:59,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:28:59,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:28:59,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:28:59,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:28:59,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:28:59,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:28:59,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:28:59,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:28:59,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:28:59,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:28:59,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:28:59,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:28:59,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:28:59,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:28:59,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:28:59,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:28:59,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:28:59,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:28:59,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:28:59,155 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:28:59,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:28:59,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:28:59,158 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:28:59,158 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:28:59,158 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:28:59,159 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:28:59,159 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:28:59,159 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:28:59,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:28:59,162 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:28:59,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:28:59,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:28:59,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:28:59,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:28:59,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:28:59,163 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:28:59,163 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:28:59,164 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:28:59,164 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:28:59,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:28:59,164 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:28:59,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:28:59,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:28:59,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:28:59,165 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:28:59,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:28:59,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:28:59,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:28:59,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:28:59,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:28:59,167 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:28:59,167 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:28:59,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:28:59,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:28:59,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:28:59,168 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_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47ecd0c3a9cbb067bdc3246482dd87f3fbac8a0c [2020-11-28 07:28:59,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:28:59,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:28:59,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:28:59,685 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:28:59,686 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:28:59,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2020-11-28 07:28:59,760 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/data/790d6cc9f/822d67b2ded74385b5f65321862aa625/FLAG0cb464c69 [2020-11-28 07:29:00,326 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:29:00,327 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2020-11-28 07:29:00,337 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/data/790d6cc9f/822d67b2ded74385b5f65321862aa625/FLAG0cb464c69 [2020-11-28 07:29:00,724 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/data/790d6cc9f/822d67b2ded74385b5f65321862aa625 [2020-11-28 07:29:00,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:29:00,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:29:00,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:29:00,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:29:00,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:29:00,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:29:00" (1/1) ... [2020-11-28 07:29:00,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248a4e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:00, skipping insertion in model container [2020-11-28 07:29:00,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:29:00" (1/1) ... [2020-11-28 07:29:00,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:29:00,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:29:01,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:29:01,079 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:29:01,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:29:01,222 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:29:01,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:01 WrapperNode [2020-11-28 07:29:01,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:29:01,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:29:01,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:29:01,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:29:01,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:01" (1/1) ... [2020-11-28 07:29:01,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:01" (1/1) ... [2020-11-28 07:29:01,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:29:01,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:29:01,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:29:01,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:29:01,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:01" (1/1) ... [2020-11-28 07:29:01,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:01" (1/1) ... [2020-11-28 07:29:01,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:01" (1/1) ... [2020-11-28 07:29:01,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:01" (1/1) ... [2020-11-28 07:29:01,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:01" (1/1) ... [2020-11-28 07:29:01,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:01" (1/1) ... [2020-11-28 07:29:01,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:01" (1/1) ... [2020-11-28 07:29:01,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:29:01,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:29:01,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:29:01,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:29:01,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/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 07:29:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-28 07:29:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-28 07:29:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:29:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:29:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 07:29:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:29:01,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:29:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 07:29:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:29:02,100 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:29:02,101 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-28 07:29:02,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:29:02 BoogieIcfgContainer [2020-11-28 07:29:02,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:29:02,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:29:02,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:29:02,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:29:02,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:29:00" (1/3) ... [2020-11-28 07:29:02,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae5d792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:29:02, skipping insertion in model container [2020-11-28 07:29:02,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:29:01" (2/3) ... [2020-11-28 07:29:02,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae5d792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:29:02, skipping insertion in model container [2020-11-28 07:29:02,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:29:02" (3/3) ... [2020-11-28 07:29:02,115 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2020-11-28 07:29:02,136 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:29:02,142 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:29:02,158 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:29:02,190 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:29:02,190 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:29:02,191 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:29:02,191 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:29:02,191 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:29:02,191 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:29:02,191 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:29:02,191 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:29:02,205 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-11-28 07:29:02,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 07:29:02,212 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:29:02,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:29:02,213 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:29:02,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:29:02,220 INFO L82 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2020-11-28 07:29:02,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:29:02,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020513657] [2020-11-28 07:29:02,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/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 07:29:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:29:02,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:29:02,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:29:02,468 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 07:29:02,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:29:02,488 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 07:29:02,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020513657] [2020-11-28 07:29:02,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:29:02,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:29:02,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967220537] [2020-11-28 07:29:02,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:29:02,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:29:02,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:29:02,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:29:02,513 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2020-11-28 07:29:02,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:29:02,531 INFO L93 Difference]: Finished difference Result 47 states and 71 transitions. [2020-11-28 07:29:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:29:02,533 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-28 07:29:02,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:29:02,551 INFO L225 Difference]: With dead ends: 47 [2020-11-28 07:29:02,551 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 07:29:02,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:29:02,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 07:29:02,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-28 07:29:02,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 07:29:02,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2020-11-28 07:29:02,602 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2020-11-28 07:29:02,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:29:02,602 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2020-11-28 07:29:02,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:29:02,603 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2020-11-28 07:29:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 07:29:02,605 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:29:02,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:29:02,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:29:02,819 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:29:02,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:29:02,820 INFO L82 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2020-11-28 07:29:02,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:29:02,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725768708] [2020-11-28 07:29:02,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 07:29:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:29:03,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 07:29:03,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:29:03,196 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 07:29:03,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:29:04,077 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 07:29:04,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725768708] [2020-11-28 07:29:04,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:29:04,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-28 07:29:04,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6559983] [2020-11-28 07:29:04,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 07:29:04,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:29:04,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 07:29:04,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-28 07:29:04,085 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 10 states. [2020-11-28 07:29:05,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:29:05,046 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2020-11-28 07:29:05,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 07:29:05,047 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-11-28 07:29:05,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:29:05,048 INFO L225 Difference]: With dead ends: 27 [2020-11-28 07:29:05,048 INFO L226 Difference]: Without dead ends: 20 [2020-11-28 07:29:05,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-28 07:29:05,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-28 07:29:05,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-28 07:29:05,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-28 07:29:05,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-11-28 07:29:05,055 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2020-11-28 07:29:05,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:29:05,055 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-11-28 07:29:05,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 07:29:05,055 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-28 07:29:05,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 07:29:05,056 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:29:05,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:29:05,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:29:05,257 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:29:05,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:29:05,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1398618101, now seen corresponding path program 1 times [2020-11-28 07:29:05,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:29:05,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739083207] [2020-11-28 07:29:05,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 07:29:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:29:05,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 07:29:05,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:29:05,610 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 07:29:05,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:29:05,868 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 07:29:05,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739083207] [2020-11-28 07:29:05,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:29:05,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2020-11-28 07:29:05,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451038941] [2020-11-28 07:29:05,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 07:29:05,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:29:05,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 07:29:05,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-28 07:29:05,871 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 9 states. [2020-11-28 07:29:06,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:29:06,180 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-11-28 07:29:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:29:06,182 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2020-11-28 07:29:06,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:29:06,182 INFO L225 Difference]: With dead ends: 20 [2020-11-28 07:29:06,182 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:29:06,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-11-28 07:29:06,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:29:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:29:06,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:29:06,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:29:06,184 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-11-28 07:29:06,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:29:06,184 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:29:06,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 07:29:06,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:29:06,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:29:06,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:29:06,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:29:06,555 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 07:29:06,555 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 07:29:06,555 INFO L274 CegarLoopResult]: For program point L32(lines 32 60) no Hoare annotation was computed. [2020-11-28 07:29:06,555 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 07:29:06,555 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:29:06,555 INFO L270 CegarLoopResult]: At program point L61(lines 19 62) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x) (= currentRoundingMode roundNearestTiesToEven) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_trunc_double_#res|)) [2020-11-28 07:29:06,556 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 07:29:06,556 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 07:29:06,556 INFO L274 CegarLoopResult]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2020-11-28 07:29:06,556 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 29) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x))) [2020-11-28 07:29:06,556 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2020-11-28 07:29:06,556 INFO L274 CegarLoopResult]: For program point L49(lines 49 60) no Hoare annotation was computed. [2020-11-28 07:29:06,556 INFO L274 CegarLoopResult]: For program point L41-1(lines 41 47) no Hoare annotation was computed. [2020-11-28 07:29:06,556 INFO L270 CegarLoopResult]: At program point L41-2(lines 41 47) the Hoare annotation is: false [2020-11-28 07:29:06,557 INFO L274 CegarLoopResult]: For program point L33(lines 33 48) no Hoare annotation was computed. [2020-11-28 07:29:06,557 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:29:06,557 INFO L274 CegarLoopResult]: For program point L54-1(lines 54 59) no Hoare annotation was computed. [2020-11-28 07:29:06,557 INFO L270 CegarLoopResult]: At program point L54-2(lines 54 59) the Hoare annotation is: false [2020-11-28 07:29:06,557 INFO L274 CegarLoopResult]: For program point L54-3(lines 32 60) no Hoare annotation was computed. [2020-11-28 07:29:06,557 INFO L274 CegarLoopResult]: For program point L50(lines 50 52) no Hoare annotation was computed. [2020-11-28 07:29:06,557 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x) (= currentRoundingMode roundNearestTiesToEven) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_trunc_double_#res|) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2020-11-28 07:29:06,557 INFO L274 CegarLoopResult]: For program point L75(lines 75 78) no Hoare annotation was computed. [2020-11-28 07:29:06,557 INFO L274 CegarLoopResult]: For program point L34-1(lines 34 39) no Hoare annotation was computed. [2020-11-28 07:29:06,558 INFO L270 CegarLoopResult]: At program point L34-2(lines 34 39) the Hoare annotation is: false [2020-11-28 07:29:06,558 INFO L277 CegarLoopResult]: At program point L80(lines 64 81) the Hoare annotation is: true [2020-11-28 07:29:06,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,571 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:29:06,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,574 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,575 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:29:06,575 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,576 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,577 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,577 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,577 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,578 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,578 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,579 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,579 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,579 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,579 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,581 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,581 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,581 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,581 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,583 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,583 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,583 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,583 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:29:06 BoogieIcfgContainer [2020-11-28 07:29:06,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:29:06,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:29:06,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:29:06,588 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:29:06,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:29:02" (3/4) ... [2020-11-28 07:29:06,592 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:29:06,611 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-28 07:29:06,611 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 07:29:06,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 07:29:06,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:29:06,642 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2020-11-28 07:29:06,643 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result [2020-11-28 07:29:06,644 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && 1bv32 == \result [2020-11-28 07:29:06,673 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c72c2ffb-2aa1-4ebc-8c61-f104d4ea3127/bin/utaipan/witness.graphml [2020-11-28 07:29:06,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:29:06,675 INFO L168 Benchmark]: Toolchain (without parser) took 5945.36 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 36.1 MB in the beginning and 55.3 MB in the end (delta: -19.3 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:06,676 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 56.6 MB. Free memory is still 39.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:29:06,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.31 ms. Allocated memory is still 56.6 MB. Free memory was 35.7 MB in the beginning and 40.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:06,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.88 ms. Allocated memory is still 56.6 MB. Free memory was 40.2 MB in the beginning and 38.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:29:06,678 INFO L168 Benchmark]: Boogie Preprocessor took 55.80 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 36.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:06,679 INFO L168 Benchmark]: RCFGBuilder took 740.18 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 36.8 MB in the beginning and 52.3 MB in the end (delta: -15.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:06,679 INFO L168 Benchmark]: TraceAbstraction took 4481.17 ms. Allocated memory is still 75.5 MB. Free memory was 52.0 MB in the beginning and 30.6 MB in the end (delta: 21.4 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:06,680 INFO L168 Benchmark]: Witness Printer took 85.98 ms. Allocated memory is still 75.5 MB. Free memory was 30.6 MB in the beginning and 55.3 MB in the end (delta: -24.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:29:06,683 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 56.6 MB. Free memory is still 39.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 492.31 ms. Allocated memory is still 56.6 MB. Free memory was 35.7 MB in the beginning and 40.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.88 ms. Allocated memory is still 56.6 MB. Free memory was 40.2 MB in the beginning and 38.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.80 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 36.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 740.18 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 36.8 MB in the beginning and 52.3 MB in the end (delta: -15.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4481.17 ms. Allocated memory is still 75.5 MB. Free memory was 52.0 MB in the beginning and 30.6 MB in the end (delta: 21.4 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * Witness Printer took 85.98 ms. Allocated memory is still 75.5 MB. Free memory was 30.6 MB in the beginning and 55.3 MB in the end (delta: -24.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * 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: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant [2020-11-28 07:29:06,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,695 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:29:06,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,696 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:29:06,696 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 17]: Loop Invariant [2020-11-28 07:29:06,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,697 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,697 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,697 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,698 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,698 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,698 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,698 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,699 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && 1bv32 == \result - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2020-11-28 07:29:06,700 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,700 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,700 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,701 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,701 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,701 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,702 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,702 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,702 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,702 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:29:06,702 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:29:06,703 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 49 SDslu, 95 SDs, 0 SdLazy, 50 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 62 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 68 ConstructedInterpolants, 6 QuantifiedInterpolants, 4765 SizeOfPredicates, 17 NumberOfNonLiveVariables, 150 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! Received shutdown request...