./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092b.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_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/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 f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 .......................................................................................................................................................................................................................................................................................................... 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_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/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 f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:13:39,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:13:39,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:13:39,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:13:39,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:13:39,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:13:39,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:13:39,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:13:39,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:13:39,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:13:39,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:13:39,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:13:39,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:13:39,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:13:39,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:13:39,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:13:39,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:13:39,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:13:39,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:13:39,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:13:39,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:13:39,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:13:39,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:13:39,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:13:39,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:13:39,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:13:39,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:13:39,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:13:39,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:13:39,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:13:39,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:13:39,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:13:39,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:13:39,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:13:39,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:13:39,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:13:39,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:13:39,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:13:39,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:13:39,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:13:39,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:13:39,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:13:39,599 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:13:39,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:13:39,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:13:39,601 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:13:39,601 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:13:39,601 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:13:39,602 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:13:39,602 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:13:39,602 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:13:39,602 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:13:39,603 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:13:39,603 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:13:39,603 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:13:39,603 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:13:39,603 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:13:39,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:13:39,604 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:13:39,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:13:39,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:13:39,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:13:39,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:13:39,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:13:39,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:13:39,606 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:13:39,606 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:13:39,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:13:39,607 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:13:39,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:13:39,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:13:39,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:13:39,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:13:39,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:13:39,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:13:39,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:13:39,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:13:39,609 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:13:39,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:13:39,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:13:39,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:13:39,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:13:39,610 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_18d60a74-f8fb-44d1-9d99-74429bc166f3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 [2020-11-30 02:13:39,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:13:39,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:13:39,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:13:39,945 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:13:39,946 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:13:39,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2020-11-30 02:13:40,016 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/data/3989079aa/4b741f05a8624b8b85076180be049d96/FLAG1be52fc74 [2020-11-30 02:13:40,404 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:13:40,404 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2020-11-30 02:13:40,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/data/3989079aa/4b741f05a8624b8b85076180be049d96/FLAG1be52fc74 [2020-11-30 02:13:40,812 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/data/3989079aa/4b741f05a8624b8b85076180be049d96 [2020-11-30 02:13:40,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:13:40,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:13:40,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:13:40,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:13:40,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:13:40,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:13:40" (1/1) ... [2020-11-30 02:13:40,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e94ba47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:40, skipping insertion in model container [2020-11-30 02:13:40,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:13:40" (1/1) ... [2020-11-30 02:13:40,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:13:40,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:13:41,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:13:41,052 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:13:41,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:13:41,089 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:13:41,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:41 WrapperNode [2020-11-30 02:13:41,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:13:41,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:13:41,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:13:41,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:13:41,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:41" (1/1) ... [2020-11-30 02:13:41,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:41" (1/1) ... [2020-11-30 02:13:41,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:13:41,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:13:41,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:13:41,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:13:41,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:41" (1/1) ... [2020-11-30 02:13:41,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:41" (1/1) ... [2020-11-30 02:13:41,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:41" (1/1) ... [2020-11-30 02:13:41,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:41" (1/1) ... [2020-11-30 02:13:41,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:41" (1/1) ... [2020-11-30 02:13:41,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:41" (1/1) ... [2020-11-30 02:13:41,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:41" (1/1) ... [2020-11-30 02:13:41,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:13:41,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:13:41,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:13:41,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:13:41,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/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 [2020-11-30 02:13:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:13:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:13:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 02:13:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 02:13:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 02:13:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:13:41,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:13:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 02:13:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:13:41,843 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:13:41,843 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 02:13:41,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:13:41 BoogieIcfgContainer [2020-11-30 02:13:41,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:13:41,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:13:41,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:13:41,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:13:41,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:13:40" (1/3) ... [2020-11-30 02:13:41,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3d3415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:13:41, skipping insertion in model container [2020-11-30 02:13:41,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:41" (2/3) ... [2020-11-30 02:13:41,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3d3415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:13:41, skipping insertion in model container [2020-11-30 02:13:41,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:13:41" (3/3) ... [2020-11-30 02:13:41,855 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b.c [2020-11-30 02:13:41,866 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:13:41,871 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:13:41,883 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:13:41,903 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:13:41,903 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:13:41,903 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:13:41,903 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:13:41,903 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:13:41,903 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:13:41,904 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:13:41,904 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:13:41,916 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-11-30 02:13:41,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:13:41,921 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:13:41,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:13:41,922 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:13:41,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:13:41,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1496489346, now seen corresponding path program 1 times [2020-11-30 02:13:41,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:13:41,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374830643] [2020-11-30 02:13:41,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:13:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:13:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:42,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374830643] [2020-11-30 02:13:42,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:13:42,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:13:42,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159788528] [2020-11-30 02:13:42,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:13:42,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:13:42,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:13:42,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:13:42,091 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-11-30 02:13:42,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:13:42,108 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-11-30 02:13:42,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:13:42,111 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 02:13:42,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:13:42,128 INFO L225 Difference]: With dead ends: 39 [2020-11-30 02:13:42,128 INFO L226 Difference]: Without dead ends: 18 [2020-11-30 02:13:42,131 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 [2020-11-30 02:13:42,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-30 02:13:42,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-30 02:13:42,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 02:13:42,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-11-30 02:13:42,179 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2020-11-30 02:13:42,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:13:42,179 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-30 02:13:42,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:13:42,180 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-11-30 02:13:42,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 02:13:42,180 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:13:42,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:13:42,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:13:42,181 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:13:42,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:13:42,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1684393161, now seen corresponding path program 1 times [2020-11-30 02:13:42,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:13:42,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638086686] [2020-11-30 02:13:42,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:13:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:13:42,270 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:13:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:13:42,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:13:42,331 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 02:13:42,332 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:13:42,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:13:42,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:13:42 BoogieIcfgContainer [2020-11-30 02:13:42,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:13:42,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:13:42,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:13:42,361 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:13:42,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:13:41" (3/4) ... [2020-11-30 02:13:42,364 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 02:13:42,365 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:13:42,367 INFO L168 Benchmark]: Toolchain (without parser) took 1549.60 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 58.3 MB in the beginning and 65.6 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:42,367 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 57.6 MB in the beginning and 57.5 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:13:42,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.79 ms. Allocated memory is still 79.7 MB. Free memory was 58.1 MB in the beginning and 55.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:42,369 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.46 ms. Allocated memory is still 79.7 MB. Free memory was 55.5 MB in the beginning and 53.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:42,370 INFO L168 Benchmark]: Boogie Preprocessor took 28.42 ms. Allocated memory is still 79.7 MB. Free memory was 53.8 MB in the beginning and 52.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:42,371 INFO L168 Benchmark]: RCFGBuilder took 678.65 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 52.3 MB in the beginning and 60.8 MB in the end (delta: -8.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:42,371 INFO L168 Benchmark]: TraceAbstraction took 512.75 ms. Allocated memory is still 96.5 MB. Free memory was 60.0 MB in the beginning and 66.3 MB in the end (delta: -6.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:13:42,372 INFO L168 Benchmark]: Witness Printer took 4.05 ms. Allocated memory is still 96.5 MB. Free memory was 66.2 MB in the beginning and 65.6 MB in the end (delta: 674.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:42,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 57.6 MB in the beginning and 57.5 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 272.79 ms. Allocated memory is still 79.7 MB. Free memory was 58.1 MB in the beginning and 55.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.46 ms. Allocated memory is still 79.7 MB. Free memory was 55.5 MB in the beginning and 53.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.42 ms. Allocated memory is still 79.7 MB. Free memory was 53.8 MB in the beginning and 52.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 678.65 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 52.3 MB in the beginning and 60.8 MB in the end (delta: -8.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 512.75 ms. Allocated memory is still 96.5 MB. Free memory was 60.0 MB in the beginning and 66.3 MB in the end (delta: -6.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.05 ms. Allocated memory is still 96.5 MB. Free memory was 66.2 MB in the beginning and 65.6 MB in the end (delta: 674.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of bitwiseAnd at line 23, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L13] static const float huge_ceil = 1.0e30; [L78] float x = 0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) [L45] COND TRUE !((ix) < 0x7f800000L) [L46] return x + x; VAL [huge_ceil=1000000000000000000000000000000] [L79] float res = ceil_float(x); [L82] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_ceil=1000000000000000000000000000000] [L82] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_1092b.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 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=20occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 [2020-11-30 02:13:44,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:13:44,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:13:44,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:13:44,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:13:44,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:13:44,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:13:44,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:13:44,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:13:44,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:13:44,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:13:44,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:13:44,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:13:44,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:13:44,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:13:44,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:13:44,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:13:44,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:13:44,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:13:44,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:13:44,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:13:44,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:13:44,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:13:44,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:13:44,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:13:44,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:13:44,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:13:44,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:13:44,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:13:44,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:13:44,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:13:44,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:13:44,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:13:44,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:13:44,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:13:44,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:13:44,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:13:44,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:13:44,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:13:44,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:13:44,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:13:44,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 02:13:44,973 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:13:44,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:13:44,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:13:44,975 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:13:44,975 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:13:44,975 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:13:44,975 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:13:44,975 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:13:44,976 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:13:44,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:13:44,977 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:13:44,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:13:44,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:13:44,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:13:44,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:13:44,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:13:44,978 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:13:44,978 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 02:13:44,978 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 02:13:44,979 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:13:44,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:13:44,979 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:13:44,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:13:44,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:13:44,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 02:13:44,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:13:44,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:13:44,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:13:44,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:13:44,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:13:44,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:13:44,981 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 02:13:44,982 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 02:13:44,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:13:44,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:13:44,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:13:44,983 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_18d60a74-f8fb-44d1-9d99-74429bc166f3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 [2020-11-30 02:13:45,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:13:45,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:13:45,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:13:45,429 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:13:45,432 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:13:45,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2020-11-30 02:13:45,505 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/data/69ccf649e/33e136d0337e4047941092ac0ef48a81/FLAGf4ab1bae0 [2020-11-30 02:13:46,074 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:13:46,075 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2020-11-30 02:13:46,084 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/data/69ccf649e/33e136d0337e4047941092ac0ef48a81/FLAGf4ab1bae0 [2020-11-30 02:13:46,445 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/data/69ccf649e/33e136d0337e4047941092ac0ef48a81 [2020-11-30 02:13:46,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:13:46,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:13:46,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:13:46,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:13:46,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:13:46,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:13:46" (1/1) ... [2020-11-30 02:13:46,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@274e0541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:46, skipping insertion in model container [2020-11-30 02:13:46,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:13:46" (1/1) ... [2020-11-30 02:13:46,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:13:46,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:13:46,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:13:46,739 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:13:46,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:13:46,867 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:13:46,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:46 WrapperNode [2020-11-30 02:13:46,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:13:46,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:13:46,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:13:46,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:13:46,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:46" (1/1) ... [2020-11-30 02:13:46,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:46" (1/1) ... [2020-11-30 02:13:46,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:13:46,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:13:46,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:13:46,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:13:46,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:46" (1/1) ... [2020-11-30 02:13:46,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:46" (1/1) ... [2020-11-30 02:13:46,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:46" (1/1) ... [2020-11-30 02:13:46,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:46" (1/1) ... [2020-11-30 02:13:46,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:46" (1/1) ... [2020-11-30 02:13:46,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:46" (1/1) ... [2020-11-30 02:13:46,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:46" (1/1) ... [2020-11-30 02:13:46,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:13:46,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:13:46,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:13:46,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:13:46,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/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 [2020-11-30 02:13:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 02:13:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:13:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 02:13:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 02:13:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:13:47,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:13:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 02:13:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 02:13:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:13:47,994 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:13:47,995 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 02:13:47,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:13:47 BoogieIcfgContainer [2020-11-30 02:13:47,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:13:48,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:13:48,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:13:48,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:13:48,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:13:46" (1/3) ... [2020-11-30 02:13:48,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64228087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:13:48, skipping insertion in model container [2020-11-30 02:13:48,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:46" (2/3) ... [2020-11-30 02:13:48,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64228087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:13:48, skipping insertion in model container [2020-11-30 02:13:48,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:13:47" (3/3) ... [2020-11-30 02:13:48,009 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b.c [2020-11-30 02:13:48,020 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:13:48,025 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:13:48,037 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:13:48,074 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:13:48,074 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:13:48,075 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:13:48,075 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:13:48,075 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:13:48,075 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:13:48,075 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:13:48,075 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:13:48,088 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-30 02:13:48,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 02:13:48,094 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:13:48,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:13:48,095 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:13:48,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:13:48,101 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-11-30 02:13:48,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:13:48,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148237755] [2020-11-30 02:13:48,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/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 [2020-11-30 02:13:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:13:48,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 02:13:48,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:13:48,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:48,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:13:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:48,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148237755] [2020-11-30 02:13:48,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:13:48,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 02:13:48,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666797252] [2020-11-30 02:13:48,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:13:48,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:13:48,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:13:48,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:13:48,345 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-30 02:13:48,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:13:48,369 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-11-30 02:13:48,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:13:48,371 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 02:13:48,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:13:48,381 INFO L225 Difference]: With dead ends: 59 [2020-11-30 02:13:48,382 INFO L226 Difference]: Without dead ends: 27 [2020-11-30 02:13:48,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:13:48,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-30 02:13:48,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-30 02:13:48,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-30 02:13:48,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-30 02:13:48,420 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-11-30 02:13:48,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:13:48,420 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-30 02:13:48,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:13:48,421 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-30 02:13:48,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 02:13:48,422 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:13:48,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:13:48,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 02:13:48,642 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:13:48,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:13:48,643 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-11-30 02:13:48,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:13:48,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459793240] [2020-11-30 02:13:48,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/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 [2020-11-30 02:13:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:13:48,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 02:13:48,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:13:48,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:48,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:13:48,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:48,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459793240] [2020-11-30 02:13:48,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:13:48,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 02:13:48,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506559677] [2020-11-30 02:13:48,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 02:13:48,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:13:48,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 02:13:48,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 02:13:48,956 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2020-11-30 02:13:49,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:13:49,272 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2020-11-30 02:13:49,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 02:13:49,276 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-30 02:13:49,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:13:49,277 INFO L225 Difference]: With dead ends: 51 [2020-11-30 02:13:49,277 INFO L226 Difference]: Without dead ends: 34 [2020-11-30 02:13:49,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-11-30 02:13:49,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-30 02:13:49,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2020-11-30 02:13:49,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 02:13:49,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-11-30 02:13:49,288 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 11 [2020-11-30 02:13:49,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:13:49,289 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-11-30 02:13:49,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 02:13:49,289 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-11-30 02:13:49,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 02:13:49,290 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:13:49,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:13:49,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 02:13:49,508 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:13:49,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:13:49,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2020-11-30 02:13:49,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:13:49,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264656283] [2020-11-30 02:13:49,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/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 [2020-11-30 02:13:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:13:49,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 02:13:49,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:13:49,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:49,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:13:50,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:50,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264656283] [2020-11-30 02:13:50,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:13:50,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 02:13:50,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444275071] [2020-11-30 02:13:50,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 02:13:50,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:13:50,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 02:13:50,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:13:50,173 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2020-11-30 02:13:50,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:13:50,380 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-11-30 02:13:50,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:13:50,387 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-30 02:13:50,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:13:50,388 INFO L225 Difference]: With dead ends: 34 [2020-11-30 02:13:50,388 INFO L226 Difference]: Without dead ends: 22 [2020-11-30 02:13:50,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:13:50,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-30 02:13:50,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-30 02:13:50,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 02:13:50,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-11-30 02:13:50,394 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2020-11-30 02:13:50,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:13:50,395 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-30 02:13:50,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 02:13:50,395 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-11-30 02:13:50,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 02:13:50,395 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:13:50,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:13:50,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 02:13:50,596 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:13:50,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:13:50,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1572128049, now seen corresponding path program 1 times [2020-11-30 02:13:50,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:13:50,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79145210] [2020-11-30 02:13:50,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 02:13:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:13:50,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 02:13:50,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:13:50,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:50,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:13:50,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:50,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79145210] [2020-11-30 02:13:50,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:13:50,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 02:13:50,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249919821] [2020-11-30 02:13:50,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 02:13:50,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:13:50,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 02:13:50,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-30 02:13:50,983 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 8 states. [2020-11-30 02:13:51,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:13:51,113 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-11-30 02:13:51,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 02:13:51,114 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-11-30 02:13:51,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:13:51,115 INFO L225 Difference]: With dead ends: 34 [2020-11-30 02:13:51,115 INFO L226 Difference]: Without dead ends: 22 [2020-11-30 02:13:51,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-30 02:13:51,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-30 02:13:51,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-30 02:13:51,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 02:13:51,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-11-30 02:13:51,121 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 17 [2020-11-30 02:13:51,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:13:51,121 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-11-30 02:13:51,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 02:13:51,121 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-11-30 02:13:51,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 02:13:51,122 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:13:51,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:13:51,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 02:13:51,341 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:13:51,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:13:51,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1913492621, now seen corresponding path program 1 times [2020-11-30 02:13:51,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:13:51,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802775896] [2020-11-30 02:13:51,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-30 02:13:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:13:51,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 02:13:51,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:13:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:51,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:13:51,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:51,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802775896] [2020-11-30 02:13:51,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:13:51,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-30 02:13:51,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761014981] [2020-11-30 02:13:51,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 02:13:51,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:13:51,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 02:13:51,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-30 02:13:51,650 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 9 states. [2020-11-30 02:13:51,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:13:51,821 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2020-11-30 02:13:51,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:13:51,822 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-11-30 02:13:51,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:13:51,822 INFO L225 Difference]: With dead ends: 25 [2020-11-30 02:13:51,822 INFO L226 Difference]: Without dead ends: 22 [2020-11-30 02:13:51,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-11-30 02:13:51,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-30 02:13:51,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-30 02:13:51,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 02:13:51,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-11-30 02:13:51,827 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 17 [2020-11-30 02:13:51,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:13:51,828 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-11-30 02:13:51,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 02:13:51,828 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-11-30 02:13:51,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 02:13:51,829 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:13:51,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:13:52,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-30 02:13:52,029 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:13:52,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:13:52,030 INFO L82 PathProgramCache]: Analyzing trace with hash 805440418, now seen corresponding path program 1 times [2020-11-30 02:13:52,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:13:52,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901025159] [2020-11-30 02:13:52,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-30 02:13:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:13:52,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 02:13:52,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:13:52,262 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 02:13:52,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:52,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:13:52,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:52,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901025159] [2020-11-30 02:13:52,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:13:52,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-11-30 02:13:52,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270576259] [2020-11-30 02:13:52,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-30 02:13:52,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:13:52,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-30 02:13:52,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-11-30 02:13:52,653 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 16 states. [2020-11-30 02:13:53,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:13:53,079 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-11-30 02:13:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 02:13:53,080 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-11-30 02:13:53,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:13:53,081 INFO L225 Difference]: With dead ends: 22 [2020-11-30 02:13:53,081 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:13:53,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-11-30 02:13:53,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:13:53,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:13:53,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:13:53,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:13:53,082 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-30 02:13:53,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:13:53,083 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:13:53,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-30 02:13:53,083 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:13:53,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:13:53,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-30 02:13:53,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 02:13:53,598 INFO L274 CegarLoopResult]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-11-30 02:13:53,598 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-30 02:13:53,598 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 02:13:53,599 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 02:13:53,599 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:13:53,599 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 02:13:53,599 INFO L274 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-11-30 02:13:53,599 INFO L274 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2020-11-30 02:13:53,599 INFO L270 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: (and (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_ceil_float_#res|) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0))))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ bv0 32) ULTIMATE.start_ceil_float_~ix~0) |ULTIMATE.start_main_#t~short15| (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)))) [2020-11-30 02:13:53,599 INFO L274 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2020-11-30 02:13:53,599 INFO L274 CegarLoopResult]: For program point L45(lines 45 48) no Hoare annotation was computed. [2020-11-30 02:13:53,599 INFO L277 CegarLoopResult]: At program point L87(lines 70 88) the Hoare annotation is: true [2020-11-30 02:13:53,599 INFO L274 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-11-30 02:13:53,600 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-11-30 02:13:53,600 INFO L270 CegarLoopResult]: At program point L55(lines 15 56) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_ceil_float_#res|) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0))))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ bv0 32) ULTIMATE.start_ceil_float_~ix~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)))) [2020-11-30 02:13:53,600 INFO L274 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-11-30 02:13:53,600 INFO L274 CegarLoopResult]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2020-11-30 02:13:53,600 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 02:13:53,600 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 02:13:53,600 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-30 02:13:53,600 INFO L274 CegarLoopResult]: For program point L82-2(lines 82 85) no Hoare annotation was computed. [2020-11-30 02:13:53,600 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:13:53,600 INFO L274 CegarLoopResult]: For program point L25(lines 25 49) no Hoare annotation was computed. [2020-11-30 02:13:53,600 INFO L274 CegarLoopResult]: For program point L50(lines 50 54) no Hoare annotation was computed. [2020-11-30 02:13:53,600 INFO L274 CegarLoopResult]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2020-11-30 02:13:53,600 INFO L274 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-11-30 02:13:53,601 INFO L270 CegarLoopResult]: At program point L67(lines 58 68) the Hoare annotation is: (and (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_ceil_float_#res|) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0))))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ bv0 32) ULTIMATE.start_ceil_float_~ix~0) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short15| (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)))) [2020-11-30 02:13:53,601 INFO L274 CegarLoopResult]: For program point L26(lines 26 43) no Hoare annotation was computed. [2020-11-30 02:13:53,601 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-11-30 02:13:53,601 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-30 02:13:53,601 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2020-11-30 02:13:53,607 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,611 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,620 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,625 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,625 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,626 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,626 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,627 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,627 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,627 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,627 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,629 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,631 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,631 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,631 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,631 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,633 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,633 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,633 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,633 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,634 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,634 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,634 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,634 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,635 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,637 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,637 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,637 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,638 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,638 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,638 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,639 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,639 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,640 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:13:53 BoogieIcfgContainer [2020-11-30 02:13:53,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:13:53,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:13:53,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:13:53,643 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:13:53,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:13:47" (3/4) ... [2020-11-30 02:13:53,650 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:13:53,663 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-30 02:13:53,663 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 02:13:53,663 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:13:53,664 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:13:53,685 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) [2020-11-30 02:13:53,687 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~Pluszero~LONGDOUBLE() == res && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) [2020-11-30 02:13:53,687 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((~Pluszero~LONGDOUBLE() == res && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) [2020-11-30 02:13:53,712 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_18d60a74-f8fb-44d1-9d99-74429bc166f3/bin/utaipan/witness.graphml [2020-11-30 02:13:53,713 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:13:53,714 INFO L168 Benchmark]: Toolchain (without parser) took 7264.78 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.2 MB in the beginning and 32.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:53,715 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 56.6 MB. Free memory was 38.7 MB in the beginning and 38.6 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:13:53,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.28 ms. Allocated memory is still 56.6 MB. Free memory was 35.0 MB in the beginning and 38.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:53,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.50 ms. Allocated memory is still 56.6 MB. Free memory was 38.4 MB in the beginning and 36.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:13:53,716 INFO L168 Benchmark]: Boogie Preprocessor took 48.51 ms. Allocated memory is still 56.6 MB. Free memory was 36.7 MB in the beginning and 35.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:53,717 INFO L168 Benchmark]: RCFGBuilder took 1008.47 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 34.9 MB in the beginning and 44.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:53,717 INFO L168 Benchmark]: TraceAbstraction took 5640.41 ms. Allocated memory is still 69.2 MB. Free memory was 43.7 MB in the beginning and 35.1 MB in the end (delta: 8.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:53,718 INFO L168 Benchmark]: Witness Printer took 70.39 ms. Allocated memory is still 69.2 MB. Free memory was 35.1 MB in the beginning and 32.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:53,721 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 56.6 MB. Free memory was 38.7 MB in the beginning and 38.6 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 419.28 ms. Allocated memory is still 56.6 MB. Free memory was 35.0 MB in the beginning and 38.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.50 ms. Allocated memory is still 56.6 MB. Free memory was 38.4 MB in the beginning and 36.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.51 ms. Allocated memory is still 56.6 MB. Free memory was 36.7 MB in the beginning and 35.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1008.47 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 34.9 MB in the beginning and 44.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5640.41 ms. Allocated memory is still 69.2 MB. Free memory was 43.7 MB in the beginning and 35.1 MB in the end (delta: 8.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. * Witness Printer took 70.39 ms. Allocated memory is still 69.2 MB. Free memory was 35.1 MB in the beginning and 32.1 MB in the end (delta: 3.1 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] * 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 - 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 - 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: 18]: Loop Invariant [2020-11-30 02:13:53,734 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,735 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~Pluszero~LONGDOUBLE()) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 61]: Loop Invariant [2020-11-30 02:13:53,736 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,736 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,736 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,737 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,737 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,739 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((~Pluszero~LONGDOUBLE() == res && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) - InvariantResult [Line: 15]: Loop Invariant [2020-11-30 02:13:53,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,741 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,742 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,743 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,744 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,744 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant [2020-11-30 02:13:53,745 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:13:53,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,748 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 02:13:53,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:13:53,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((((~Pluszero~LONGDOUBLE() == res && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 319 SDslu, 120 SDs, 0 SdLazy, 137 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 127 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 188 HoareAnnotationTreeSize, 5 FomulaSimplifications, 195 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 170 ConstructedInterpolants, 22 QuantifiedInterpolants, 17102 SizeOfPredicates, 40 NumberOfNonLiveVariables, 331 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...