./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.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_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/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 b1ef2080ffd97f82ac51854e7d9813eba864fd0a ....................................................................................................................................................................................................................................................................................................................... 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_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/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 b1ef2080ffd97f82ac51854e7d9813eba864fd0a .................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:08:13,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:13,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:13,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:13,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:13,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:13,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:13,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:13,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:13,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:13,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:13,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:13,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:13,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:13,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:13,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:13,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:13,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:13,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:13,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:13,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:13,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:13,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:13,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:13,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:13,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:13,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:13,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:13,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:13,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:13,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:13,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:13,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:13,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:13,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:13,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:13,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:13,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:13,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:13,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:13,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:13,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:08:13,889 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:13,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:13,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:13,892 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:13,892 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:13,892 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:13,892 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:08:13,893 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:13,893 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:13,893 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:08:13,894 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:08:13,894 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:13,895 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:08:13,895 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:08:13,895 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:08:13,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:13,896 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:13,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:08:13,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:13,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:13,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:13,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:13,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:13,898 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:13,898 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:13,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:13,899 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:13,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:13,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:13,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:13,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:13,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:13,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:13,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:13,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:13,901 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:08:13,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:08:13,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:13,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:13,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:13,902 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_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ef2080ffd97f82ac51854e7d9813eba864fd0a [2020-11-22 13:08:14,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:14,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:14,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:14,257 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:14,258 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:14,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2020-11-22 13:08:14,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/data/0d5838095/3d6a12e5895a44abb6a232275bffe3b5/FLAG5e6208b30 [2020-11-22 13:08:14,792 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:14,793 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2020-11-22 13:08:14,804 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/data/0d5838095/3d6a12e5895a44abb6a232275bffe3b5/FLAG5e6208b30 [2020-11-22 13:08:15,176 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/data/0d5838095/3d6a12e5895a44abb6a232275bffe3b5 [2020-11-22 13:08:15,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:15,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:15,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:15,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:15,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:15,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:15" (1/1) ... [2020-11-22 13:08:15,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f72a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:15, skipping insertion in model container [2020-11-22 13:08:15,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:15" (1/1) ... [2020-11-22 13:08:15,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:15,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:15,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:15,455 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:08:15,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:15,516 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:08:15,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:15 WrapperNode [2020-11-22 13:08:15,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:15,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:15,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:08:15,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:08:15,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:15" (1/1) ... [2020-11-22 13:08:15,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:15" (1/1) ... [2020-11-22 13:08:15,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:15,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:08:15,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:08:15,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:08:15,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:15" (1/1) ... [2020-11-22 13:08:15,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:15" (1/1) ... [2020-11-22 13:08:15,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:15" (1/1) ... [2020-11-22 13:08:15,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:15" (1/1) ... [2020-11-22 13:08:15,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:15" (1/1) ... [2020-11-22 13:08:15,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:15" (1/1) ... [2020-11-22 13:08:15,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:15" (1/1) ... [2020-11-22 13:08:15,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:08:15,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:08:15,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:08:15,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:08:15,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/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 [2020-11-22 13:08:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:08:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:08:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 13:08:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 13:08:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 13:08:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:08:15,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:08:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 13:08:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-22 13:08:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:08:16,616 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:08:16,616 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-22 13:08:16,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:16 BoogieIcfgContainer [2020-11-22 13:08:16,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:08:16,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:08:16,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:08:16,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:08:16,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:08:15" (1/3) ... [2020-11-22 13:08:16,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c15cb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:16, skipping insertion in model container [2020-11-22 13:08:16,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:15" (2/3) ... [2020-11-22 13:08:16,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c15cb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:16, skipping insertion in model container [2020-11-22 13:08:16,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:16" (3/3) ... [2020-11-22 13:08:16,629 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2020-11-22 13:08:16,639 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:08:16,644 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:08:16,654 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:08:16,677 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:08:16,678 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:08:16,678 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:08:16,678 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:08:16,678 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:08:16,678 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:08:16,679 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:08:16,679 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:08:16,690 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-11-22 13:08:16,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:08:16,695 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:16,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:16,696 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:16,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:16,702 INFO L82 PathProgramCache]: Analyzing trace with hash 650016985, now seen corresponding path program 1 times [2020-11-22 13:08:16,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:08:16,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154070159] [2020-11-22 13:08:16,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:08:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:16,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:16,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154070159] [2020-11-22 13:08:16,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:16,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:08:16,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210956664] [2020-11-22 13:08:16,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:08:16,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:08:16,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:08:16,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:08:16,851 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2020-11-22 13:08:16,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:16,870 INFO L93 Difference]: Finished difference Result 77 states and 131 transitions. [2020-11-22 13:08:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:08:16,871 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-22 13:08:16,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:16,880 INFO L225 Difference]: With dead ends: 77 [2020-11-22 13:08:16,880 INFO L226 Difference]: Without dead ends: 37 [2020-11-22 13:08:16,883 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 [2020-11-22 13:08:16,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-22 13:08:16,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-22 13:08:16,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-22 13:08:16,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2020-11-22 13:08:16,947 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 8 [2020-11-22 13:08:16,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:16,947 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2020-11-22 13:08:16,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:08:16,948 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2020-11-22 13:08:16,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:08:16,948 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:16,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:16,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:08:16,949 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:16,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:16,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1117939652, now seen corresponding path program 1 times [2020-11-22 13:08:16,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:08:16,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160193851] [2020-11-22 13:08:16,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:08:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:17,091 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:17,178 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:17,215 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:08:17,215 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:08:17,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:08:17,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:08:17 BoogieIcfgContainer [2020-11-22 13:08:17,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:08:17,258 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:08:17,258 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:08:17,258 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:08:17,259 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:16" (3/4) ... [2020-11-22 13:08:17,261 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:08:17,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:08:17,266 INFO L168 Benchmark]: Toolchain (without parser) took 2083.55 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 54.3 MB in the beginning and 82.9 MB in the end (delta: -28.7 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:17,266 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 43.3 MB in the beginning and 43.2 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:17,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.68 ms. Allocated memory is still 83.9 MB. Free memory was 54.1 MB in the beginning and 58.6 MB in the end (delta: -4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:17,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.64 ms. Allocated memory is still 83.9 MB. Free memory was 58.6 MB in the beginning and 56.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:17,269 INFO L168 Benchmark]: Boogie Preprocessor took 70.34 ms. Allocated memory is still 83.9 MB. Free memory was 56.1 MB in the beginning and 54.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:17,271 INFO L168 Benchmark]: RCFGBuilder took 969.05 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 54.0 MB in the beginning and 69.2 MB in the end (delta: -15.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:17,271 INFO L168 Benchmark]: TraceAbstraction took 636.72 ms. Allocated memory is still 117.4 MB. Free memory was 68.6 MB in the beginning and 82.9 MB in the end (delta: -14.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:17,272 INFO L168 Benchmark]: Witness Printer took 4.65 ms. Allocated memory is still 117.4 MB. Free memory is still 82.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:17,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 43.3 MB in the beginning and 43.2 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.68 ms. Allocated memory is still 83.9 MB. Free memory was 54.1 MB in the beginning and 58.6 MB in the end (delta: -4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.64 ms. Allocated memory is still 83.9 MB. Free memory was 58.6 MB in the beginning and 56.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.34 ms. Allocated memory is still 83.9 MB. Free memory was 56.1 MB in the beginning and 54.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 969.05 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 54.0 MB in the beginning and 69.2 MB in the end (delta: -15.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 636.72 ms. Allocated memory is still 117.4 MB. Free memory was 68.6 MB in the beginning and 82.9 MB in the end (delta: -14.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.65 ms. Allocated memory is still 117.4 MB. Free memory is still 82.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L171] double x = __VERIFIER_nondet_double(); [L172] double y = 0.0; [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L173] double res = fmod_double(x, y); [L18] return x != x; [L176] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1121a.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 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=39occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 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 [2020-11-22 13:08:19,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:19,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:19,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:19,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:19,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:19,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:19,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:19,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:19,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:19,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:19,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:19,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:19,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:19,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:19,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:19,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:19,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:19,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:19,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:19,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:19,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:19,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:19,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:19,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:19,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:19,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:19,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:19,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:19,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:19,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:19,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:19,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:19,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:19,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:19,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:19,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:19,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:19,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:19,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:19,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:19,743 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:08:19,782 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:19,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:19,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:19,784 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:19,785 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:19,785 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:19,785 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:19,785 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:19,785 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:19,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:19,788 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:19,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:19,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:19,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:19,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:19,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:19,789 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:19,789 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:08:19,789 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:08:19,790 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:19,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:19,790 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:19,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:19,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:19,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:08:19,791 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:19,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:19,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:19,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:19,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:19,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:19,792 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:08:19,793 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:08:19,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:19,793 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:19,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:19,793 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_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ef2080ffd97f82ac51854e7d9813eba864fd0a [2020-11-22 13:08:20,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:20,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:20,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:20,197 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:20,199 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:20,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2020-11-22 13:08:20,270 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/data/ba3499794/8c404fa76c2f4458b150e2a9fd6ea8f3/FLAG8ca47cc9f [2020-11-22 13:08:20,721 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:20,722 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2020-11-22 13:08:20,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/data/ba3499794/8c404fa76c2f4458b150e2a9fd6ea8f3/FLAG8ca47cc9f [2020-11-22 13:08:21,110 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/data/ba3499794/8c404fa76c2f4458b150e2a9fd6ea8f3 [2020-11-22 13:08:21,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:21,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:21,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:21,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:21,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:21,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:21" (1/1) ... [2020-11-22 13:08:21,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d4de27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:21, skipping insertion in model container [2020-11-22 13:08:21,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:21" (1/1) ... [2020-11-22 13:08:21,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:21,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:21,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:21,529 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:08:21,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:21,633 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:08:21,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:21 WrapperNode [2020-11-22 13:08:21,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:21,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:21,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:08:21,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:08:21,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:21" (1/1) ... [2020-11-22 13:08:21,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:21" (1/1) ... [2020-11-22 13:08:21,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:21,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:08:21,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:08:21,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:08:21,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:21" (1/1) ... [2020-11-22 13:08:21,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:21" (1/1) ... [2020-11-22 13:08:21,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:21" (1/1) ... [2020-11-22 13:08:21,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:21" (1/1) ... [2020-11-22 13:08:21,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:21" (1/1) ... [2020-11-22 13:08:21,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:21" (1/1) ... [2020-11-22 13:08:21,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:21" (1/1) ... [2020-11-22 13:08:21,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:08:21,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:08:21,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:08:21,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:08:21,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/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 [2020-11-22 13:08:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-22 13:08:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-22 13:08:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:08:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:08:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-11-22 13:08:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 13:08:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:08:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:08:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 13:08:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:08:25,535 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:08:25,535 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-22 13:08:25,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:25 BoogieIcfgContainer [2020-11-22 13:08:25,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:08:25,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:08:25,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:08:25,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:08:25,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:08:21" (1/3) ... [2020-11-22 13:08:25,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef380ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:25, skipping insertion in model container [2020-11-22 13:08:25,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:21" (2/3) ... [2020-11-22 13:08:25,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef380ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:25, skipping insertion in model container [2020-11-22 13:08:25,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:25" (3/3) ... [2020-11-22 13:08:25,544 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2020-11-22 13:08:25,554 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:08:25,561 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:08:25,572 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:08:25,596 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:08:25,596 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:08:25,596 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:08:25,596 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:08:25,596 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:08:25,596 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:08:25,597 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:08:25,597 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:08:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-11-22 13:08:25,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:08:25,612 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:25,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:25,613 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:25,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:25,617 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-11-22 13:08:25,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:25,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627541615] [2020-11-22 13:08:25,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/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 [2020-11-22 13:08:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:26,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:08:26,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:26,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:26,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:26,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:26,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627541615] [2020-11-22 13:08:26,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:26,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:08:26,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443200306] [2020-11-22 13:08:26,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:08:26,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:26,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:08:26,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:08:26,671 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-11-22 13:08:26,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:26,704 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-11-22 13:08:26,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:08:26,706 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-22 13:08:26,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:26,717 INFO L225 Difference]: With dead ends: 109 [2020-11-22 13:08:26,718 INFO L226 Difference]: Without dead ends: 52 [2020-11-22 13:08:26,722 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 [2020-11-22 13:08:26,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-22 13:08:26,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-22 13:08:26,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-22 13:08:26,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-11-22 13:08:26,770 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-11-22 13:08:26,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:26,770 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-11-22 13:08:26,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:08:26,771 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-11-22 13:08:26,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 13:08:26,772 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:26,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:26,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:08:26,993 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:26,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:26,994 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-11-22 13:08:26,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:26,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447378598] [2020-11-22 13:08:26,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/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 [2020-11-22 13:08:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:28,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-22 13:08:28,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:32,499 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |c_ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (_ +zero 11 53)))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) is different from true [2020-11-22 13:08:34,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:34,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:38,722 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-11-22 13:08:40,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:40,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447378598] [2020-11-22 13:08:40,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:40,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-11-22 13:08:40,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598022327] [2020-11-22 13:08:40,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-22 13:08:40,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:40,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-22 13:08:40,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=56, Unknown=2, NotChecked=30, Total=110 [2020-11-22 13:08:40,376 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 11 states. [2020-11-22 13:08:44,923 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_fmod_double_~y (_ +zero 11 53))) is different from true [2020-11-22 13:08:57,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:57,673 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2020-11-22 13:08:57,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 13:08:57,706 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-11-22 13:08:57,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:57,708 INFO L225 Difference]: With dead ends: 57 [2020-11-22 13:08:57,708 INFO L226 Difference]: Without dead ends: 52 [2020-11-22 13:08:57,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 26.4s TimeCoverageRelationStatistics Valid=37, Invalid=82, Unknown=3, NotChecked=60, Total=182 [2020-11-22 13:08:57,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-22 13:08:57,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-22 13:08:57,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-22 13:08:57,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-11-22 13:08:57,716 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2020-11-22 13:08:57,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:57,717 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-11-22 13:08:57,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-22 13:08:57,717 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-11-22 13:08:57,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-22 13:08:57,718 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:57,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:57,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:08:57,931 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:57,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:57,932 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2020-11-22 13:08:57,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:57,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625579620] [2020-11-22 13:08:57,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/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 [2020-11-22 13:08:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:58,167 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:58,360 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:58,445 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:08:58,445 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:08:58,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:08:58,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:08:58 BoogieIcfgContainer [2020-11-22 13:08:58,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:08:58,693 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:08:58,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:08:58,694 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:08:58,694 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:25" (3/4) ... [2020-11-22 13:08:58,696 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:08:58,751 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fc5bd05a-39ac-4ab3-87a7-e791b5b77c53/bin/utaipan/witness.graphml [2020-11-22 13:08:58,755 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:08:58,757 INFO L168 Benchmark]: Toolchain (without parser) took 37642.21 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 52.9 MB in the beginning and 73.5 MB in the end (delta: -20.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:58,758 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 50.3 MB. Free memory is still 31.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:58,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.49 ms. Allocated memory is still 73.4 MB. Free memory was 52.7 MB in the beginning and 52.9 MB in the end (delta: -221.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:58,759 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.41 ms. Allocated memory is still 73.4 MB. Free memory was 52.9 MB in the beginning and 50.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:58,760 INFO L168 Benchmark]: Boogie Preprocessor took 88.16 ms. Allocated memory is still 73.4 MB. Free memory was 50.5 MB in the beginning and 48.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:58,760 INFO L168 Benchmark]: RCFGBuilder took 3724.73 ms. Allocated memory is still 73.4 MB. Free memory was 48.2 MB in the beginning and 38.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:58,761 INFO L168 Benchmark]: TraceAbstraction took 33154.99 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 38.0 MB in the beginning and 75.6 MB in the end (delta: -37.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:58,761 INFO L168 Benchmark]: Witness Printer took 61.70 ms. Allocated memory is still 94.4 MB. Free memory was 75.6 MB in the beginning and 73.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:58,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 50.3 MB. Free memory is still 31.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 498.49 ms. Allocated memory is still 73.4 MB. Free memory was 52.7 MB in the beginning and 52.9 MB in the end (delta: -221.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.41 ms. Allocated memory is still 73.4 MB. Free memory was 52.9 MB in the beginning and 50.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.16 ms. Allocated memory is still 73.4 MB. Free memory was 50.5 MB in the beginning and 48.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3724.73 ms. Allocated memory is still 73.4 MB. Free memory was 48.2 MB in the beginning and 38.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 33154.99 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 38.0 MB in the beginning and 75.6 MB in the end (delta: -37.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * Witness Printer took 61.70 ms. Allocated memory is still 94.4 MB. Free memory was 75.6 MB in the beginning and 73.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L171] double x = __VERIFIER_nondet_double(); [L172] double y = 0.0; [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1.0, Zero_fmod={2:0}] [L45-L46] COND FALSE !((hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000)) VAL [one_fmod=1.0, Zero_fmod={2:0}] [L48] COND TRUE hx <= hy VAL [one_fmod=1.0, Zero_fmod={2:0}] [L49] COND TRUE (hx < hy) || (lx < ly) [L50] return x; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L173] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L176] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1121a.c", 3, "reach_error") VAL [one_fmod=1.0, Zero_fmod={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 17.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 155 SDtfs, 4 SDslu, 335 SDs, 0 SdLazy, 21 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 26.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 7 QuantifiedInterpolants, 2549 SizeOfPredicates, 11 NumberOfNonLiveVariables, 132 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...