./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI --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 5ae8278c4ec20358798928b86253d2d04fbb03a1 ........................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI --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 5ae8278c4ec20358798928b86253d2d04fbb03a1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:22:28,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:22:28,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:22:28,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:22:28,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:22:28,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:22:28,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:22:28,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:22:28,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:22:28,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:22:28,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:22:28,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:22:28,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:22:28,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:22:28,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:22:28,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:22:28,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:22:28,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:22:28,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:22:28,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:22:28,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:22:28,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:22:28,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:22:28,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:22:28,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:22:28,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:22:28,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:22:28,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:22:28,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:22:28,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:22:28,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:22:28,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:22:28,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:22:28,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:22:28,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:22:28,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:22:28,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:22:28,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:22:28,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:22:28,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:22:28,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:22:28,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:22:28,637 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:22:28,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:22:28,638 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:22:28,639 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:22:28,639 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:22:28,639 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:22:28,639 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:22:28,639 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:22:28,640 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:22:28,640 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:22:28,640 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:22:28,640 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:22:28,640 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:22:28,641 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:22:28,641 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:22:28,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:22:28,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:22:28,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:22:28,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:22:28,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:22:28,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:22:28,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:22:28,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:22:28,643 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:22:28,643 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:22:28,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:22:28,644 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:22:28,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:22:28,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:22:28,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:22:28,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:28,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:22:28,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:22:28,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:22:28,645 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:22:28,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:22:28,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:22:28,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:22:28,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:22:28,646 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_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ae8278c4ec20358798928b86253d2d04fbb03a1 [2021-10-11 02:22:28,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:22:29,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:22:29,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:22:29,025 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:22:29,026 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:22:29,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-10-11 02:22:29,098 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/data/37db334cd/c9e86291f9304ef6a9d9b18a0e6812e9/FLAGfe5b514d4 [2021-10-11 02:22:29,614 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:22:29,615 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-10-11 02:22:29,629 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/data/37db334cd/c9e86291f9304ef6a9d9b18a0e6812e9/FLAGfe5b514d4 [2021-10-11 02:22:29,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/data/37db334cd/c9e86291f9304ef6a9d9b18a0e6812e9 [2021-10-11 02:22:29,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:22:29,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:22:29,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:29,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:22:29,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:22:29,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:29" (1/1) ... [2021-10-11 02:22:29,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f5da997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29, skipping insertion in model container [2021-10-11 02:22:29,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:29" (1/1) ... [2021-10-11 02:22:29,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:22:29,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:22:30,243 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-10-11 02:22:30,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:30,259 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:22:30,304 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-10-11 02:22:30,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:30,321 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:22:30,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:30 WrapperNode [2021-10-11 02:22:30,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:30,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:30,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:22:30,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:22:30,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:30" (1/1) ... [2021-10-11 02:22:30,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:30" (1/1) ... [2021-10-11 02:22:30,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:30,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:22:30,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:22:30,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:22:30,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:30" (1/1) ... [2021-10-11 02:22:30,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:30" (1/1) ... [2021-10-11 02:22:30,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:30" (1/1) ... [2021-10-11 02:22:30,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:30" (1/1) ... [2021-10-11 02:22:30,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:30" (1/1) ... [2021-10-11 02:22:30,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:30" (1/1) ... [2021-10-11 02:22:30,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:30" (1/1) ... [2021-10-11 02:22:30,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:22:30,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:22:30,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:22:30,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:22:30,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:30" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:22:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:22:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:22:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:22:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 02:22:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 02:22:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:22:30,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:22:30,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:22:30,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-11 02:22:30,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:22:31,635 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:22:31,636 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-11 02:22:31,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:31 BoogieIcfgContainer [2021-10-11 02:22:31,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:22:31,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:22:31,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:22:31,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:22:31,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:22:29" (1/3) ... [2021-10-11 02:22:31,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359cec1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:31, skipping insertion in model container [2021-10-11 02:22:31,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:30" (2/3) ... [2021-10-11 02:22:31,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359cec1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:31, skipping insertion in model container [2021-10-11 02:22:31,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:31" (3/3) ... [2021-10-11 02:22:31,646 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2021-10-11 02:22:31,660 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:22:31,664 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:22:31,674 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:22:31,696 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:22:31,696 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:22:31,701 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:22:31,702 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:22:31,702 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:22:31,702 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:22:31,702 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:22:31,702 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:22:31,713 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2021-10-11 02:22:31,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:22:31,717 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:31,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:31,718 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:31,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:31,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1459360728, now seen corresponding path program 1 times [2021-10-11 02:22:31,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:31,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296064028] [2021-10-11 02:22:31,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:31,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:31,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296064028] [2021-10-11 02:22:31,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:31,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:31,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682314754] [2021-10-11 02:22:31,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:22:31,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:31,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:22:31,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:22:31,880 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2021-10-11 02:22:31,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:31,900 INFO L93 Difference]: Finished difference Result 77 states and 131 transitions. [2021-10-11 02:22:31,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:22:31,901 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-10-11 02:22:31,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:31,911 INFO L225 Difference]: With dead ends: 77 [2021-10-11 02:22:31,911 INFO L226 Difference]: Without dead ends: 37 [2021-10-11 02:22:31,919 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 [2021-10-11 02:22:31,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-11 02:22:31,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-11 02:22:31,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-10-11 02:22:31,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2021-10-11 02:22:31,962 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 8 [2021-10-11 02:22:31,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:31,963 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2021-10-11 02:22:31,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:22:31,963 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2021-10-11 02:22:31,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:22:31,964 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:31,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:31,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:22:31,966 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:31,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:31,969 INFO L82 PathProgramCache]: Analyzing trace with hash -724915525, now seen corresponding path program 1 times [2021-10-11 02:22:31,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:31,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875828223] [2021-10-11 02:22:31,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:22:32,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:22:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:22:32,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:22:32,146 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:22:32,147 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:22:32,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:22:32,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:22:32 BoogieIcfgContainer [2021-10-11 02:22:32,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:22:32,175 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:22:32,175 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:22:32,175 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:22:32,176 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:31" (3/4) ... [2021-10-11 02:22:32,179 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:22:32,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:22:32,181 INFO L168 Benchmark]: Toolchain (without parser) took 2244.10 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 64.9 MB in the beginning and 73.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:32,182 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 104.9 MB. Free memory is still 81.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:32,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.74 ms. Allocated memory is still 104.9 MB. Free memory was 64.7 MB in the beginning and 77.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:32,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.84 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 75.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:32,184 INFO L168 Benchmark]: Boogie Preprocessor took 73.00 ms. Allocated memory is still 104.9 MB. Free memory was 75.3 MB in the beginning and 73.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:32,185 INFO L168 Benchmark]: RCFGBuilder took 1174.40 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 73.3 MB in the beginning and 99.4 MB in the end (delta: -26.1 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:32,186 INFO L168 Benchmark]: TraceAbstraction took 534.77 ms. Allocated memory is still 136.3 MB. Free memory was 98.7 MB in the beginning and 73.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:32,186 INFO L168 Benchmark]: Witness Printer took 4.29 ms. Allocated memory is still 136.3 MB. Free memory is still 73.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:32,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 104.9 MB. Free memory is still 81.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 383.74 ms. Allocated memory is still 104.9 MB. Free memory was 64.7 MB in the beginning and 77.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.84 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 75.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.00 ms. Allocated memory is still 104.9 MB. Free memory was 75.3 MB in the beginning and 73.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1174.40 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 73.3 MB in the beginning and 99.4 MB in the end (delta: -26.1 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 534.77 ms. Allocated memory is still 136.3 MB. Free memory was 98.7 MB in the beginning and 73.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.29 ms. Allocated memory is still 136.3 MB. Free memory is still 73.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 177]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is 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) [L177] 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: 0.4s, 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, 0.0s 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 0.2.0-7b2dab5 [2021-10-11 02:22:34,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:22:34,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:22:34,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-11 02:22:34,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:22:34,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:22:34,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:22:34,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:22:34,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:22:34,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:22:34,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:22:34,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:22:34,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:22:34,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:22:34,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:22:34,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:22:34,834 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:22:34,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:22:34,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:22:34,836 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:22:34,836 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:22:34,836 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:22:34,836 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:22:34,837 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:22:34,837 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:22:34,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:22:34,839 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:22:34,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:22:34,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:22:34,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:22:34,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:22:34,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:22:34,841 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:22:34,841 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:22:34,841 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:22:34,841 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:22:34,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:22:34,842 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:22:34,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:22:34,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:22:34,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:22:34,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:22:34,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:34,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:22:34,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:22:34,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:22:34,843 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:22:34,844 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:22:34,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:22:34,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:22:34,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:22:34,845 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_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ae8278c4ec20358798928b86253d2d04fbb03a1 [2021-10-11 02:22:35,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:22:35,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:22:35,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:22:35,296 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:22:35,298 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:22:35,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-10-11 02:22:35,367 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/data/a61b16aac/9f723076b7c24dbd9742c9efbbf43a67/FLAG12d96c336 [2021-10-11 02:22:35,852 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:22:35,853 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-10-11 02:22:35,860 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/data/a61b16aac/9f723076b7c24dbd9742c9efbbf43a67/FLAG12d96c336 [2021-10-11 02:22:36,208 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/data/a61b16aac/9f723076b7c24dbd9742c9efbbf43a67 [2021-10-11 02:22:36,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:22:36,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:22:36,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:36,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:22:36,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:22:36,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f3eb89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36, skipping insertion in model container [2021-10-11 02:22:36,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:22:36,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:22:36,501 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-10-11 02:22:36,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:36,514 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:22:36,560 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-10-11 02:22:36,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:36,580 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:22:36,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36 WrapperNode [2021-10-11 02:22:36,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:36,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:36,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:22:36,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:22:36,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:36,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:22:36,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:22:36,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:22:36,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:22:36,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:22:36,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:22:36,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:22:36,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:22:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-11 02:22:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-11 02:22:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:22:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:22:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-11 02:22:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:22:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:22:36,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:22:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:22:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:22:42,252 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:22:42,253 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-11 02:22:42,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:42 BoogieIcfgContainer [2021-10-11 02:22:42,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:22:42,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:22:42,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:22:42,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:22:42,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:22:36" (1/3) ... [2021-10-11 02:22:42,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6420f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:42, skipping insertion in model container [2021-10-11 02:22:42,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (2/3) ... [2021-10-11 02:22:42,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6420f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:42, skipping insertion in model container [2021-10-11 02:22:42,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:42" (3/3) ... [2021-10-11 02:22:42,263 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2021-10-11 02:22:42,277 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:22:42,281 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:22:42,290 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:22:42,314 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:22:42,314 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:22:42,315 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:22:42,315 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:22:42,315 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:22:42,315 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:22:42,315 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:22:42,316 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:22:42,330 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2021-10-11 02:22:42,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:22:42,344 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:42,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:42,347 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:42,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:42,353 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-10-11 02:22:42,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:42,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214088439] [2021-10-11 02:22:42,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:22:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:43,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:22:43,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:43,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:43,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [214088439] [2021-10-11 02:22:43,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:43,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:43,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023071735] [2021-10-11 02:22:43,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:22:43,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:43,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:22:43,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:22:43,495 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2021-10-11 02:22:43,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:43,518 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2021-10-11 02:22:43,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:22:43,519 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2021-10-11 02:22:43,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:43,528 INFO L225 Difference]: With dead ends: 108 [2021-10-11 02:22:43,528 INFO L226 Difference]: Without dead ends: 52 [2021-10-11 02:22:43,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:22:43,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-11 02:22:43,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-11 02:22:43,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2021-10-11 02:22:43,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2021-10-11 02:22:43,566 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2021-10-11 02:22:43,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:43,566 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2021-10-11 02:22:43,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:22:43,567 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2021-10-11 02:22:43,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:22:43,567 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:43,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:43,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:22:43,786 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:43,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:43,787 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2021-10-11 02:22:43,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:43,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242298304] [2021-10-11 02:22:43,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:22:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:44,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-11 02:22:44,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:47,259 WARN L838 $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 (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) is different from false [2021-10-11 02:22:56,244 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 32) |c_ULTIMATE.start_isnan_double_#res|) (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0))))) is different from false [2021-10-11 02:23:02,820 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 32) |c_ULTIMATE.start_main_#t~ret19|) (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0))))) is different from false [2021-10-11 02:23:02,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:02,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:02,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242298304] [2021-10-11 02:23:02,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:02,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:23:02,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887079043] [2021-10-11 02:23:02,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:23:02,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:02,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:23:02,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=9, Unknown=3, NotChecked=18, Total=42 [2021-10-11 02:23:02,850 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 7 states. [2021-10-11 02:23:08,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:08,805 INFO L93 Difference]: Finished difference Result 63 states and 87 transitions. [2021-10-11 02:23:08,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:23:08,838 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2021-10-11 02:23:08,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:08,840 INFO L225 Difference]: With dead ends: 63 [2021-10-11 02:23:08,840 INFO L226 Difference]: Without dead ends: 58 [2021-10-11 02:23:08,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=12, Invalid=9, Unknown=3, NotChecked=18, Total=42 [2021-10-11 02:23:08,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-11 02:23:08,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2021-10-11 02:23:08,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2021-10-11 02:23:08,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2021-10-11 02:23:08,851 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2021-10-11 02:23:08,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:08,852 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2021-10-11 02:23:08,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:23:08,852 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2021-10-11 02:23:08,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:23:08,853 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:08,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:09,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:23:09,067 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:09,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:09,067 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2021-10-11 02:23:09,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:09,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362286383] [2021-10-11 02:23:09,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:09,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:23:09,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:09,440 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2021-10-11 02:23:09,485 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 02:23:09,506 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:23:09,507 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 02:23:09,595 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:23:09,598 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 02:23:09,598 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2021-10-11 02:23:09,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:09,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:09,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362286383] [2021-10-11 02:23:09,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:09,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:23:09,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619334894] [2021-10-11 02:23:09,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:23:09,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:09,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:23:09,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:09,871 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 5 states. [2021-10-11 02:23:10,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:10,161 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2021-10-11 02:23:10,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:23:10,162 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-10-11 02:23:10,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:10,162 INFO L225 Difference]: With dead ends: 52 [2021-10-11 02:23:10,162 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:23:10,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:23:10,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:23:10,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:23:10,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:23:10,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:23:10,164 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-11 02:23:10,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:10,164 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:23:10,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:23:10,164 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:23:10,164 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:23:10,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:23:10,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:23:13,960 WARN L197 SmtUtils]: Spent 3.37 s on a formula simplification that was a NOOP. DAG size: 9 [2021-10-11 02:23:18,524 WARN L197 SmtUtils]: Spent 4.56 s on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2021-10-11 02:23:18,547 INFO L262 CegarLoopResult]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2021-10-11 02:23:18,547 INFO L258 CegarLoopResult]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2021-10-11 02:23:18,547 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:23:18,547 INFO L262 CegarLoopResult]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2021-10-11 02:23:18,547 INFO L262 CegarLoopResult]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2021-10-11 02:23:18,547 INFO L258 CegarLoopResult]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2021-10-11 02:23:18,548 INFO L262 CegarLoopResult]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2021-10-11 02:23:18,548 INFO L262 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-10-11 02:23:18,548 INFO L262 CegarLoopResult]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2021-10-11 02:23:18,548 INFO L262 CegarLoopResult]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2021-10-11 02:23:18,548 INFO L258 CegarLoopResult]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2021-10-11 02:23:18,548 INFO L262 CegarLoopResult]: For program point L154(lines 154 159) no Hoare annotation was computed. [2021-10-11 02:23:18,549 INFO L262 CegarLoopResult]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2021-10-11 02:23:18,549 INFO L262 CegarLoopResult]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2021-10-11 02:23:18,549 INFO L262 CegarLoopResult]: For program point L55(lines 25 163) no Hoare annotation was computed. [2021-10-11 02:23:18,549 INFO L262 CegarLoopResult]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2021-10-11 02:23:18,550 INFO L262 CegarLoopResult]: For program point L56(lines 56 62) no Hoare annotation was computed. [2021-10-11 02:23:18,550 INFO L262 CegarLoopResult]: For program point L106(lines 106 107) no Hoare annotation was computed. [2021-10-11 02:23:18,550 INFO L262 CegarLoopResult]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2021-10-11 02:23:18,550 INFO L262 CegarLoopResult]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2021-10-11 02:23:18,550 INFO L258 CegarLoopResult]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2021-10-11 02:23:18,550 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:23:18,550 INFO L258 CegarLoopResult]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2021-10-11 02:23:18,551 INFO L262 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-11 02:23:18,551 INFO L262 CegarLoopResult]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2021-10-11 02:23:18,551 INFO L262 CegarLoopResult]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2021-10-11 02:23:18,551 INFO L258 CegarLoopResult]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2021-10-11 02:23:18,551 INFO L262 CegarLoopResult]: For program point L176(lines 176 179) no Hoare annotation was computed. [2021-10-11 02:23:18,551 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:23:18,551 INFO L262 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2021-10-11 02:23:18,551 INFO L262 CegarLoopResult]: For program point L144(lines 144 153) no Hoare annotation was computed. [2021-10-11 02:23:18,552 INFO L262 CegarLoopResult]: For program point L45(lines 45 47) no Hoare annotation was computed. [2021-10-11 02:23:18,552 INFO L262 CegarLoopResult]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2021-10-11 02:23:18,552 INFO L258 CegarLoopResult]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_double_~y (fp.neg (_ +zero 11 53)))) [2021-10-11 02:23:18,552 INFO L262 CegarLoopResult]: For program point L112(lines 112 113) no Hoare annotation was computed. [2021-10-11 02:23:18,553 INFO L258 CegarLoopResult]: At program point L162(lines 25 163) the Hoare annotation is: (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) [2021-10-11 02:23:18,553 INFO L258 CegarLoopResult]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2021-10-11 02:23:18,553 INFO L262 CegarLoopResult]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2021-10-11 02:23:18,553 INFO L262 CegarLoopResult]: For program point L147(lines 147 153) no Hoare annotation was computed. [2021-10-11 02:23:18,554 INFO L262 CegarLoopResult]: For program point L81(lines 81 87) no Hoare annotation was computed. [2021-10-11 02:23:18,554 INFO L262 CegarLoopResult]: For program point L48(lines 48 53) no Hoare annotation was computed. [2021-10-11 02:23:18,554 INFO L262 CegarLoopResult]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2021-10-11 02:23:18,554 INFO L262 CegarLoopResult]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2021-10-11 02:23:18,554 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:23:18,555 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-10-11 02:23:18,555 INFO L265 CegarLoopResult]: At program point L181(lines 165 182) the Hoare annotation is: true [2021-10-11 02:23:18,555 INFO L262 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2021-10-11 02:23:18,555 INFO L262 CegarLoopResult]: For program point L66(lines 25 163) no Hoare annotation was computed. [2021-10-11 02:23:18,556 INFO L262 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2021-10-11 02:23:18,556 INFO L262 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2021-10-11 02:23:18,556 INFO L258 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) [2021-10-11 02:23:18,556 INFO L262 CegarLoopResult]: For program point L134(lines 134 161) no Hoare annotation was computed. [2021-10-11 02:23:18,556 INFO L262 CegarLoopResult]: For program point L35(lines 35 40) no Hoare annotation was computed. [2021-10-11 02:23:18,557 INFO L262 CegarLoopResult]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2021-10-11 02:23:18,557 INFO L262 CegarLoopResult]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-10-11 02:23:18,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,573 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,574 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,574 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,574 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-11 02:23:18,574 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,574 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-11 02:23:18,575 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,576 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-11 02:23:18,576 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-11 02:23:18,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:23:18 BoogieIcfgContainer [2021-10-11 02:23:18,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:23:18,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:23:18,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:23:18,581 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:23:18,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:42" (3/4) ... [2021-10-11 02:23:18,584 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:23:18,597 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:23:18,597 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:23:18,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:23:18,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:23:18,645 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4b2121f-6026-4c1d-a696-b3bec2f07657/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:23:18,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:23:18,647 INFO L168 Benchmark]: Toolchain (without parser) took 42433.71 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 41.2 MB in the beginning and 37.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:18,647 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 60.8 MB. Free memory is still 41.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:18,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.86 ms. Allocated memory is still 60.8 MB. Free memory was 41.0 MB in the beginning and 39.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:18,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.60 ms. Allocated memory is still 60.8 MB. Free memory was 39.9 MB in the beginning and 37.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:18,650 INFO L168 Benchmark]: Boogie Preprocessor took 62.50 ms. Allocated memory is still 60.8 MB. Free memory was 37.7 MB in the beginning and 35.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:18,651 INFO L168 Benchmark]: RCFGBuilder took 5558.14 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 35.6 MB in the beginning and 52.6 MB in the end (delta: -17.0 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:18,651 INFO L168 Benchmark]: TraceAbstraction took 36323.79 ms. Allocated memory is still 88.1 MB. Free memory was 52.2 MB in the beginning and 40.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:18,652 INFO L168 Benchmark]: Witness Printer took 64.85 ms. Allocated memory is still 88.1 MB. Free memory was 40.1 MB in the beginning and 37.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:18,656 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 60.8 MB. Free memory is still 41.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 367.86 ms. Allocated memory is still 60.8 MB. Free memory was 41.0 MB in the beginning and 39.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.60 ms. Allocated memory is still 60.8 MB. Free memory was 39.9 MB in the beginning and 37.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.50 ms. Allocated memory is still 60.8 MB. Free memory was 37.7 MB in the beginning and 35.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5558.14 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 35.6 MB in the beginning and 52.6 MB in the end (delta: -17.0 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 36323.79 ms. Allocated memory is still 88.1 MB. Free memory was 52.2 MB in the beginning and 40.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Witness Printer took 64.85 ms. Allocated memory is still 88.1 MB. Free memory was 40.1 MB in the beginning and 37.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,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_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,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_fmod_double_~x,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 177]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant [2021-10-11 02:23:18,668 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,669 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant [2021-10-11 02:23:18,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-11 02:23:18,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-11 02:23:18,672 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,672 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-11 02:23:18,673 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:18,673 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_double_~x : C_DOUBLE :: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 77 SDslu, 30 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 28 FormulaSimplificationTreeSizeReductionInter, 8.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 18.6s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 6 QuantifiedInterpolants, 2553 SizeOfPredicates, 16 NumberOfNonLiveVariables, 199 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...