./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0270a.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-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0270a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36a331464187de28b12e5b04905e142d1ff0258d .................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0270a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36a331464187de28b12e5b04905e142d1ff0258d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 18:18:10,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:18:10,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:18:10,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:18:10,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:18:10,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:18:10,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:18:10,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:18:10,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:18:10,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:18:10,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:18:10,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:18:10,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:18:10,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:18:10,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:18:10,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:18:10,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:18:10,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:18:10,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:18:10,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:18:10,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:18:10,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:18:10,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:18:10,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:18:10,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:18:10,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:18:10,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:18:10,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:18:10,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:18:10,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:18:10,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:18:10,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:18:10,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:18:10,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:18:10,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:18:10,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:18:10,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:18:10,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:18:10,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:18:10,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:18:10,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:18:10,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 18:18:10,556 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:18:10,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:18:10,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:18:10,557 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:18:10,558 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:18:10,558 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:18:10,558 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 18:18:10,558 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:18:10,558 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:18:10,558 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 18:18:10,558 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 18:18:10,558 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:18:10,559 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 18:18:10,559 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 18:18:10,559 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 18:18:10,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:18:10,559 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:18:10,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:18:10,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:18:10,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:18:10,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:18:10,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:18:10,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:18:10,560 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:18:10,560 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:18:10,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:18:10,561 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:18:10,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:18:10,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:18:10,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:18:10,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:18:10,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:18:10,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:18:10,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:18:10,562 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 18:18:10,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 18:18:10,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:18:10,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:18:10,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:18:10,562 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36a331464187de28b12e5b04905e142d1ff0258d [2020-12-09 18:18:10,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:18:10,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:18:10,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:18:10,758 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:18:10,758 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:18:10,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0270a.c [2020-12-09 18:18:10,802 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/data/cb70eeaaf/9a7d482fd3da4c11a8aec17eb7bbbc0d/FLAGc78144d64 [2020-12-09 18:18:11,179 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:18:11,179 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/sv-benchmarks/c/float-newlib/double_req_bl_0270a.c [2020-12-09 18:18:11,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/data/cb70eeaaf/9a7d482fd3da4c11a8aec17eb7bbbc0d/FLAGc78144d64 [2020-12-09 18:18:11,199 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/data/cb70eeaaf/9a7d482fd3da4c11a8aec17eb7bbbc0d [2020-12-09 18:18:11,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:18:11,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:18:11,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:18:11,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:18:11,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:18:11,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:18:11" (1/1) ... [2020-12-09 18:18:11,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3336b24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:11, skipping insertion in model container [2020-12-09 18:18:11,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:18:11" (1/1) ... [2020-12-09 18:18:11,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:18:11,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:18:11,377 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/sv-benchmarks/c/float-newlib/double_req_bl_0270a.c[5868,5881] [2020-12-09 18:18:11,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:18:11,387 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:18:11,425 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/sv-benchmarks/c/float-newlib/double_req_bl_0270a.c[5868,5881] [2020-12-09 18:18:11,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:18:11,437 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:18:11,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:11 WrapperNode [2020-12-09 18:18:11,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:18:11,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:18:11,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:18:11,439 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:18:11,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:11" (1/1) ... [2020-12-09 18:18:11,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:11" (1/1) ... [2020-12-09 18:18:11,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:18:11,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:18:11,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:18:11,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:18:11,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:11" (1/1) ... [2020-12-09 18:18:11,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:11" (1/1) ... [2020-12-09 18:18:11,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:11" (1/1) ... [2020-12-09 18:18:11,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:11" (1/1) ... [2020-12-09 18:18:11,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:11" (1/1) ... [2020-12-09 18:18:11,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:11" (1/1) ... [2020-12-09 18:18:11,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:11" (1/1) ... [2020-12-09 18:18:11,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:18:11,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:18:11,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:18:11,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:18:11,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:18:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 18:18:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:18:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 18:18:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 18:18:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 18:18:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:18:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:18:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 18:18:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 18:18:12,172 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:18:12,172 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2020-12-09 18:18:12,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:18:12 BoogieIcfgContainer [2020-12-09 18:18:12,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:18:12,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:18:12,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:18:12,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:18:12,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:18:11" (1/3) ... [2020-12-09 18:18:12,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297a2e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:18:12, skipping insertion in model container [2020-12-09 18:18:12,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:11" (2/3) ... [2020-12-09 18:18:12,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297a2e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:18:12, skipping insertion in model container [2020-12-09 18:18:12,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:18:12" (3/3) ... [2020-12-09 18:18:12,180 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0270a.c [2020-12-09 18:18:12,189 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:18:12,192 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 18:18:12,199 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 18:18:12,215 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:18:12,215 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:18:12,215 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:18:12,215 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:18:12,216 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:18:12,216 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:18:12,216 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:18:12,216 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:18:12,225 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-12-09 18:18:12,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 18:18:12,228 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:18:12,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:18:12,229 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:18:12,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:18:12,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1592732056, now seen corresponding path program 1 times [2020-12-09 18:18:12,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:18:12,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938738013] [2020-12-09 18:18:12,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:18:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:18:12,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:18:12,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938738013] [2020-12-09 18:18:12,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:18:12,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 18:18:12,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570062711] [2020-12-09 18:18:12,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 18:18:12,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 18:18:12,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 18:18:12,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 18:18:12,372 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-12-09 18:18:12,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:18:12,388 INFO L93 Difference]: Finished difference Result 89 states and 145 transitions. [2020-12-09 18:18:12,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 18:18:12,389 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-09 18:18:12,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:18:12,396 INFO L225 Difference]: With dead ends: 89 [2020-12-09 18:18:12,396 INFO L226 Difference]: Without dead ends: 43 [2020-12-09 18:18:12,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 18:18:12,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-09 18:18:12,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-12-09 18:18:12,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-12-09 18:18:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2020-12-09 18:18:12,425 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 9 [2020-12-09 18:18:12,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:18:12,425 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2020-12-09 18:18:12,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 18:18:12,425 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2020-12-09 18:18:12,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 18:18:12,426 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:18:12,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:18:12,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 18:18:12,426 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:18:12,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:18:12,427 INFO L82 PathProgramCache]: Analyzing trace with hash -905856845, now seen corresponding path program 1 times [2020-12-09 18:18:12,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:18:12,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440026076] [2020-12-09 18:18:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:18:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 18:18:12,460 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 18:18:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 18:18:12,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 18:18:12,501 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 18:18:12,501 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 18:18:12,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 18:18:12,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:18:12 BoogieIcfgContainer [2020-12-09 18:18:12,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 18:18:12,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 18:18:12,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 18:18:12,529 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 18:18:12,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:18:12" (3/4) ... [2020-12-09 18:18:12,532 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 18:18:12,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 18:18:12,534 INFO L168 Benchmark]: Toolchain (without parser) took 1330.54 ms. Allocated memory was 119.5 MB in the beginning and 167.8 MB in the end (delta: 48.2 MB). Free memory was 90.5 MB in the beginning and 130.4 MB in the end (delta: -39.8 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2020-12-09 18:18:12,534 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 119.5 MB. Free memory is still 97.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:18:12,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.91 ms. Allocated memory is still 119.5 MB. Free memory was 90.3 MB in the beginning and 75.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 18:18:12,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.38 ms. Allocated memory is still 119.5 MB. Free memory was 75.7 MB in the beginning and 73.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:18:12,536 INFO L168 Benchmark]: Boogie Preprocessor took 32.80 ms. Allocated memory is still 119.5 MB. Free memory was 73.2 MB in the beginning and 71.0 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:18:12,536 INFO L168 Benchmark]: RCFGBuilder took 661.31 ms. Allocated memory is still 119.5 MB. Free memory was 70.8 MB in the beginning and 64.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:18:12,537 INFO L168 Benchmark]: TraceAbstraction took 353.36 ms. Allocated memory was 119.5 MB in the beginning and 167.8 MB in the end (delta: 48.2 MB). Free memory was 63.8 MB in the beginning and 130.4 MB in the end (delta: -66.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:18:12,537 INFO L168 Benchmark]: Witness Printer took 3.55 ms. Allocated memory is still 167.8 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:18:12,540 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 119.5 MB. Free memory is still 97.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 233.91 ms. Allocated memory is still 119.5 MB. Free memory was 90.3 MB in the beginning and 75.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.38 ms. Allocated memory is still 119.5 MB. Free memory was 75.7 MB in the beginning and 73.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.80 ms. Allocated memory is still 119.5 MB. Free memory was 73.2 MB in the beginning and 71.0 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 661.31 ms. Allocated memory is still 119.5 MB. Free memory was 70.8 MB in the beginning and 64.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 353.36 ms. Allocated memory was 119.5 MB in the beginning and 167.8 MB in the end (delta: 48.2 MB). Free memory was 63.8 MB in the beginning and 130.4 MB in the end (delta: -66.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.55 ms. Allocated memory is still 167.8 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 242]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 150, overapproximation of bitwiseAnd at line 168, overapproximation of someBinaryArithmeticDOUBLEoperation at line 185, overapproximation of someBinaryDOUBLEComparisonOperation at line 241. Possible FailurePath: [L18] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L144-L158] static const double one_asin = 1.00000000000000000000e+00, huge_asin = 1.000e+300, pio2_hi_asin = 1.57079632679489655800e+00, pio2_lo_asin = 6.12323399573676603587e-17, pio4_hi_asin = 7.85398163397448278999e-01, pS0_asin = 1.66666666666666657415e-01, pS1_asin = -3.25565818622400915405e-01, pS2_asin = 2.01212532134862925881e-01, pS3_asin = -4.00555345006794114027e-02, pS4_asin = 7.91534994289814532176e-04, pS5_asin = 3.47933107596021167570e-05, qS1_asin = -2.40339491173441421878e+00, qS2_asin = 2.02094576023350569471e+00, qS3_asin = -6.88283971605453293030e-01, qS4_asin = 7.70381505559019352791e-02; [L237] double x = 0.0; [L161] double t, w, p, q, c, r, s; [L162] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L164] ieee_double_shape_type gh_u; [L165] gh_u.value = (x) [L166] EXPR gh_u.parts.msw [L166] (hx) = gh_u.parts.msw [L168] ix = hx & 0x7fffffff VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L169] COND FALSE !(ix >= 0x3ff00000) VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L180] COND TRUE ix < 0x3fe00000 VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L181] COND FALSE !(ix < 0x3e400000) [L185] t = x * x [L186-L189] p = t * (pS0_asin + t * (pS1_asin + t * (pS2_asin + t * (pS3_asin + t * (pS4_asin + t * pS5_asin))))) [L190-L191] q = one_asin + t * (qS1_asin + t * (qS2_asin + t * (qS3_asin + t * qS4_asin))) [L192] w = p / q [L193] return x + x * w; VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L238] double res = __ieee754_asin(x); [L241] COND TRUE res != x VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L242] reach_error() VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 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=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 18:18:14,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:18:14,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:18:14,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:18:14,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:18:14,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:18:14,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:18:14,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:18:14,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:18:14,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:18:14,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:18:14,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:18:14,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:18:14,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:18:14,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:18:14,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:18:14,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:18:14,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:18:14,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:18:14,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:18:14,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:18:14,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:18:14,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:18:14,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:18:14,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:18:14,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:18:14,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:18:14,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:18:14,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:18:14,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:18:14,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:18:14,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:18:14,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:18:14,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:18:14,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:18:14,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:18:14,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:18:14,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:18:14,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:18:14,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:18:14,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:18:14,296 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 18:18:14,318 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:18:14,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:18:14,319 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:18:14,319 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:18:14,319 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:18:14,319 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:18:14,320 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:18:14,320 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:18:14,320 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:18:14,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:18:14,321 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:18:14,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:18:14,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:18:14,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:18:14,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:18:14,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:18:14,322 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:18:14,322 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 18:18:14,322 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 18:18:14,322 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:18:14,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:18:14,322 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:18:14,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:18:14,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:18:14,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 18:18:14,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:18:14,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:18:14,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:18:14,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:18:14,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:18:14,329 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 18:18:14,330 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 18:18:14,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:18:14,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:18:14,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:18:14,330 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36a331464187de28b12e5b04905e142d1ff0258d [2020-12-09 18:18:14,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:18:14,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:18:14,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:18:14,598 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:18:14,599 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:18:14,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0270a.c [2020-12-09 18:18:14,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/data/5aa925eee/45e659615f14457181dffb64ad682e31/FLAGac0be3879 [2020-12-09 18:18:15,039 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:18:15,040 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/sv-benchmarks/c/float-newlib/double_req_bl_0270a.c [2020-12-09 18:18:15,046 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/data/5aa925eee/45e659615f14457181dffb64ad682e31/FLAGac0be3879 [2020-12-09 18:18:15,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/data/5aa925eee/45e659615f14457181dffb64ad682e31 [2020-12-09 18:18:15,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:18:15,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:18:15,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:18:15,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:18:15,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:18:15,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:18:15" (1/1) ... [2020-12-09 18:18:15,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73741d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:15, skipping insertion in model container [2020-12-09 18:18:15,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:18:15" (1/1) ... [2020-12-09 18:18:15,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:18:15,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:18:15,229 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/sv-benchmarks/c/float-newlib/double_req_bl_0270a.c[5868,5881] [2020-12-09 18:18:15,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:18:15,242 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:18:15,290 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/sv-benchmarks/c/float-newlib/double_req_bl_0270a.c[5868,5881] [2020-12-09 18:18:15,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:18:15,309 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:18:15,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:15 WrapperNode [2020-12-09 18:18:15,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:18:15,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:18:15,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:18:15,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:18:15,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:15" (1/1) ... [2020-12-09 18:18:15,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:15" (1/1) ... [2020-12-09 18:18:15,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:18:15,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:18:15,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:18:15,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:18:15,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:15" (1/1) ... [2020-12-09 18:18:15,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:15" (1/1) ... [2020-12-09 18:18:15,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:15" (1/1) ... [2020-12-09 18:18:15,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:15" (1/1) ... [2020-12-09 18:18:15,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:15" (1/1) ... [2020-12-09 18:18:15,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:15" (1/1) ... [2020-12-09 18:18:15,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:15" (1/1) ... [2020-12-09 18:18:15,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:18:15,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:18:15,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:18:15,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:18:15,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:18:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-09 18:18:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-09 18:18:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 18:18:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:18:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 18:18:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:18:15,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:18:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 18:18:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 18:18:37,181 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:18:37,181 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2020-12-09 18:18:37,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:18:37 BoogieIcfgContainer [2020-12-09 18:18:37,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:18:37,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:18:37,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:18:37,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:18:37,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:18:15" (1/3) ... [2020-12-09 18:18:37,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5d4b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:18:37, skipping insertion in model container [2020-12-09 18:18:37,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:18:15" (2/3) ... [2020-12-09 18:18:37,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5d4b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:18:37, skipping insertion in model container [2020-12-09 18:18:37,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:18:37" (3/3) ... [2020-12-09 18:18:37,191 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0270a.c [2020-12-09 18:18:37,202 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:18:37,205 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 18:18:37,213 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 18:18:37,231 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:18:37,231 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:18:37,231 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:18:37,231 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:18:37,231 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:18:37,231 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:18:37,232 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:18:37,232 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:18:37,242 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-12-09 18:18:37,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 18:18:37,246 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:18:37,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:18:37,246 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:18:37,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:18:37,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1035834224, now seen corresponding path program 1 times [2020-12-09 18:18:37,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:18:37,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315978477] [2020-12-09 18:18:37,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 18:18:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:18:37,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 18:18:37,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:18:37,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:18:37,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:18:37,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315978477] [2020-12-09 18:18:37,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:18:37,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 18:18:37,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503310559] [2020-12-09 18:18:37,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 18:18:37,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:18:37,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 18:18:37,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 18:18:37,847 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 2 states. [2020-12-09 18:18:37,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:18:37,867 INFO L93 Difference]: Finished difference Result 140 states and 230 transitions. [2020-12-09 18:18:37,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 18:18:37,868 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-09 18:18:37,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:18:37,875 INFO L225 Difference]: With dead ends: 140 [2020-12-09 18:18:37,875 INFO L226 Difference]: Without dead ends: 68 [2020-12-09 18:18:37,877 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 [2020-12-09 18:18:37,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-09 18:18:37,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-12-09 18:18:37,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-09 18:18:37,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-12-09 18:18:37,907 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 10 [2020-12-09 18:18:37,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:18:37,907 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-12-09 18:18:37,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 18:18:37,907 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-12-09 18:18:37,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 18:18:37,908 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:18:37,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:18:38,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 18:18:38,109 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:18:38,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:18:38,110 INFO L82 PathProgramCache]: Analyzing trace with hash -744853926, now seen corresponding path program 1 times [2020-12-09 18:18:38,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:18:38,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223805426] [2020-12-09 18:18:38,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 18:18:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:18:41,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 18:18:41,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:18:42,280 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 18:18:42,597 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-09 18:18:42,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:18:42,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:18:42,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223805426] [2020-12-09 18:18:42,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:18:42,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 18:18:42,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403631771] [2020-12-09 18:18:42,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 18:18:42,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:18:42,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 18:18:42,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 18:18:42,626 INFO L87 Difference]: Start difference. First operand 68 states and 94 transitions. Second operand 5 states. [2020-12-09 18:18:42,917 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-09 18:18:43,193 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 18:18:44,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:18:44,728 INFO L93 Difference]: Finished difference Result 124 states and 171 transitions. [2020-12-09 18:18:44,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 18:18:44,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-09 18:18:44,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:18:44,730 INFO L225 Difference]: With dead ends: 124 [2020-12-09 18:18:44,731 INFO L226 Difference]: Without dead ends: 65 [2020-12-09 18:18:44,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 18:18:44,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-12-09 18:18:44,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-12-09 18:18:44,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-12-09 18:18:44,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 85 transitions. [2020-12-09 18:18:44,741 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 85 transitions. Word has length 11 [2020-12-09 18:18:44,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:18:44,741 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 85 transitions. [2020-12-09 18:18:44,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 18:18:44,741 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 85 transitions. [2020-12-09 18:18:44,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 18:18:44,742 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:18:44,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:18:44,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 18:18:44,943 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:18:44,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:18:44,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1629311917, now seen corresponding path program 1 times [2020-12-09 18:18:44,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:18:44,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245375586] [2020-12-09 18:18:44,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 18:18:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:18:45,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 18:18:45,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:18:45,365 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-09 18:18:45,589 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-09 18:18:45,913 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-09 18:18:45,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:18:45,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:18:45,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [245375586] [2020-12-09 18:18:45,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:18:45,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 18:18:45,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168084737] [2020-12-09 18:18:45,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 18:18:45,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:18:45,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 18:18:45,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 18:18:45,922 INFO L87 Difference]: Start difference. First operand 65 states and 85 transitions. Second operand 5 states. [2020-12-09 18:18:46,822 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 18:18:47,233 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 18:18:47,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:18:47,478 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2020-12-09 18:18:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 18:18:47,479 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-09 18:18:47,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:18:47,480 INFO L225 Difference]: With dead ends: 69 [2020-12-09 18:18:47,480 INFO L226 Difference]: Without dead ends: 65 [2020-12-09 18:18:47,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 18:18:47,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-12-09 18:18:47,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-12-09 18:18:47,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-12-09 18:18:47,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2020-12-09 18:18:47,492 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 12 [2020-12-09 18:18:47,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:18:47,493 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2020-12-09 18:18:47,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 18:18:47,493 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2020-12-09 18:18:47,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-09 18:18:47,494 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:18:47,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:18:47,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 18:18:47,695 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:18:47,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:18:47,696 INFO L82 PathProgramCache]: Analyzing trace with hash -264969657, now seen corresponding path program 1 times [2020-12-09 18:18:47,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:18:47,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196670505] [2020-12-09 18:18:47,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 18:18:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:18:53,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 18:18:53,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:18:53,337 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 18:18:53,652 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-09 18:18:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:18:53,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:18:53,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196670505] [2020-12-09 18:18:53,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:18:53,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 18:18:53,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387408390] [2020-12-09 18:18:53,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 18:18:53,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:18:53,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 18:18:53,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 18:18:53,682 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand 4 states. [2020-12-09 18:18:53,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:18:53,754 INFO L93 Difference]: Finished difference Result 65 states and 84 transitions. [2020-12-09 18:18:53,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 18:18:53,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-12-09 18:18:53,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:18:53,756 INFO L225 Difference]: With dead ends: 65 [2020-12-09 18:18:53,756 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 18:18:53,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 18:18:53,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 18:18:53,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 18:18:53,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 18:18:53,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 18:18:53,757 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-12-09 18:18:53,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:18:53,757 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 18:18:53,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 18:18:53,758 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 18:18:53,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 18:18:53,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 18:18:53,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 18:18:54,792 WARN L197 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2020-12-09 18:18:55,462 WARN L197 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2020-12-09 18:18:55,540 INFO L262 CegarLoopResult]: For program point L85(lines 85 94) no Hoare annotation was computed. [2020-12-09 18:18:55,540 INFO L262 CegarLoopResult]: For program point L85-2(lines 85 94) no Hoare annotation was computed. [2020-12-09 18:18:55,540 INFO L262 CegarLoopResult]: For program point L135(lines 135 140) no Hoare annotation was computed. [2020-12-09 18:18:55,540 INFO L262 CegarLoopResult]: For program point L135-1(lines 128 142) no Hoare annotation was computed. [2020-12-09 18:18:55,540 INFO L262 CegarLoopResult]: For program point L135-2(lines 135 140) no Hoare annotation was computed. [2020-12-09 18:18:55,540 INFO L262 CegarLoopResult]: For program point L36(lines 36 41) no Hoare annotation was computed. [2020-12-09 18:18:55,541 INFO L258 CegarLoopResult]: At program point L69-2(lines 69 79) the Hoare annotation is: false [2020-12-09 18:18:55,541 INFO L262 CegarLoopResult]: For program point L36-2(lines 36 41) no Hoare annotation was computed. [2020-12-09 18:18:55,541 INFO L262 CegarLoopResult]: For program point L69-3(lines 69 79) no Hoare annotation was computed. [2020-12-09 18:18:55,541 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 18:18:55,541 INFO L262 CegarLoopResult]: For program point L119-1(lines 119 124) no Hoare annotation was computed. [2020-12-09 18:18:55,541 INFO L258 CegarLoopResult]: At program point L119-2(lines 119 124) the Hoare annotation is: false [2020-12-09 18:18:55,541 INFO L262 CegarLoopResult]: For program point L119-3(lines 119 124) no Hoare annotation was computed. [2020-12-09 18:18:55,541 INFO L262 CegarLoopResult]: For program point L169(lines 169 195) no Hoare annotation was computed. [2020-12-09 18:18:55,542 INFO L262 CegarLoopResult]: For program point L103(lines 103 111) no Hoare annotation was computed. [2020-12-09 18:18:55,542 INFO L262 CegarLoopResult]: For program point L37(lines 37 40) no Hoare annotation was computed. [2020-12-09 18:18:55,542 INFO L262 CegarLoopResult]: For program point L87(lines 87 88) no Hoare annotation was computed. [2020-12-09 18:18:55,542 INFO L262 CegarLoopResult]: For program point L87-2(lines 87 88) no Hoare annotation was computed. [2020-12-09 18:18:55,542 INFO L262 CegarLoopResult]: For program point L71(lines 71 75) no Hoare annotation was computed. [2020-12-09 18:18:55,542 INFO L262 CegarLoopResult]: For program point L71-2(lines 71 75) no Hoare annotation was computed. [2020-12-09 18:18:55,542 INFO L262 CegarLoopResult]: For program point L171-1(lines 171 175) no Hoare annotation was computed. [2020-12-09 18:18:55,542 INFO L258 CegarLoopResult]: At program point L171-2(lines 171 175) the Hoare annotation is: false [2020-12-09 18:18:55,543 INFO L262 CegarLoopResult]: For program point L171-3(lines 169 180) no Hoare annotation was computed. [2020-12-09 18:18:55,543 INFO L262 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-12-09 18:18:55,543 INFO L262 CegarLoopResult]: For program point L106(lines 106 111) no Hoare annotation was computed. [2020-12-09 18:18:55,543 INFO L262 CegarLoopResult]: For program point L90(lines 90 91) no Hoare annotation was computed. [2020-12-09 18:18:55,543 INFO L262 CegarLoopResult]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2020-12-09 18:18:55,543 INFO L262 CegarLoopResult]: For program point L206(lines 206 222) no Hoare annotation was computed. [2020-12-09 18:18:55,543 INFO L262 CegarLoopResult]: For program point L206-2(lines 160 227) no Hoare annotation was computed. [2020-12-09 18:18:55,543 INFO L262 CegarLoopResult]: For program point L107(lines 107 108) no Hoare annotation was computed. [2020-12-09 18:18:55,543 INFO L262 CegarLoopResult]: For program point L107-2(lines 107 108) no Hoare annotation was computed. [2020-12-09 18:18:55,544 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 18:18:55,544 INFO L262 CegarLoopResult]: For program point L58(lines 58 61) no Hoare annotation was computed. [2020-12-09 18:18:55,544 INFO L262 CegarLoopResult]: For program point L58-2(lines 58 61) no Hoare annotation was computed. [2020-12-09 18:18:55,544 INFO L258 CegarLoopResult]: At program point L141(lines 128 142) the Hoare annotation is: false [2020-12-09 18:18:55,544 INFO L258 CegarLoopResult]: At program point L125(lines 20 126) the Hoare annotation is: false [2020-12-09 18:18:55,544 INFO L262 CegarLoopResult]: For program point L26-1(lines 26 31) no Hoare annotation was computed. [2020-12-09 18:18:55,544 INFO L258 CegarLoopResult]: At program point L26-2(lines 26 31) the Hoare annotation is: false [2020-12-09 18:18:55,544 INFO L262 CegarLoopResult]: For program point L26-3(lines 20 126) no Hoare annotation was computed. [2020-12-09 18:18:55,544 INFO L262 CegarLoopResult]: For program point L241(lines 241 244) no Hoare annotation was computed. [2020-12-09 18:18:55,545 INFO L262 CegarLoopResult]: For program point L242(line 242) no Hoare annotation was computed. [2020-12-09 18:18:55,545 INFO L262 CegarLoopResult]: For program point L44(lines 44 55) no Hoare annotation was computed. [2020-12-09 18:18:55,545 INFO L262 CegarLoopResult]: For program point L44-2(lines 44 55) no Hoare annotation was computed. [2020-12-09 18:18:55,545 INFO L258 CegarLoopResult]: At program point L226(lines 160 227) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_13| (_ BitVec 64))) (and (= (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_13|)) ULTIMATE.start___ieee754_asin_~ix~0) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_13|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_13|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_13|)) (_ +zero 11 53)))) (= (_ +zero 11 53) ULTIMATE.start___ieee754_asin_~x) (exists ((|v_skolemized_q#valueAsBitvector_13| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_13|) ULTIMATE.start___ieee754_asin_~hx~0) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_13|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_13|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_13|)) (_ +zero 11 53)))) (= |ULTIMATE.start___ieee754_asin_#res| ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~x~0 (_ +zero 11 53))) [2020-12-09 18:18:55,545 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 18:18:55,545 INFO L258 CegarLoopResult]: At program point L45-2(lines 45 49) the Hoare annotation is: false [2020-12-09 18:18:55,545 INFO L262 CegarLoopResult]: For program point L45-3(lines 45 49) no Hoare annotation was computed. [2020-12-09 18:18:55,546 INFO L262 CegarLoopResult]: For program point L211-1(lines 211 216) no Hoare annotation was computed. [2020-12-09 18:18:55,546 INFO L258 CegarLoopResult]: At program point L211-2(lines 211 216) the Hoare annotation is: false [2020-12-09 18:18:55,546 INFO L262 CegarLoopResult]: For program point L211-3(lines 211 216) no Hoare annotation was computed. [2020-12-09 18:18:55,546 INFO L262 CegarLoopResult]: For program point L163-1(lines 163 167) no Hoare annotation was computed. [2020-12-09 18:18:55,546 INFO L258 CegarLoopResult]: At program point L163-2(lines 163 167) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_asin~0) (= currentRoundingMode roundNearestTiesToEven) (= (_ +zero 11 53) ULTIMATE.start___ieee754_asin_~x) (= ~huge_asin~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= ULTIMATE.start_main_~x~0 (_ +zero 11 53))) [2020-12-09 18:18:55,546 INFO L262 CegarLoopResult]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2020-12-09 18:18:55,546 INFO L262 CegarLoopResult]: For program point L163-3(lines 163 167) no Hoare annotation was computed. [2020-12-09 18:18:55,546 INFO L258 CegarLoopResult]: At program point L130-2(lines 130 134) the Hoare annotation is: false [2020-12-09 18:18:55,547 INFO L265 CegarLoopResult]: At program point L246(lines 229 247) the Hoare annotation is: true [2020-12-09 18:18:55,547 INFO L262 CegarLoopResult]: For program point L180(lines 180 195) no Hoare annotation was computed. [2020-12-09 18:18:55,547 INFO L262 CegarLoopResult]: For program point L180-1(lines 180 195) no Hoare annotation was computed. [2020-12-09 18:18:55,547 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 18:18:55,547 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 242) no Hoare annotation was computed. [2020-12-09 18:18:55,547 INFO L262 CegarLoopResult]: For program point L181(lines 181 194) no Hoare annotation was computed. [2020-12-09 18:18:55,547 INFO L258 CegarLoopResult]: At program point L82-2(lines 82 98) the Hoare annotation is: false [2020-12-09 18:18:55,547 INFO L262 CegarLoopResult]: For program point L82-3(lines 20 126) no Hoare annotation was computed. [2020-12-09 18:18:55,547 INFO L262 CegarLoopResult]: For program point L99(lines 99 113) no Hoare annotation was computed. [2020-12-09 18:18:55,548 INFO L262 CegarLoopResult]: For program point L182(lines 182 183) no Hoare annotation was computed. [2020-12-09 18:18:55,548 INFO L262 CegarLoopResult]: For program point L116(lines 116 117) no Hoare annotation was computed. [2020-12-09 18:18:55,548 INFO L262 CegarLoopResult]: For program point L116-2(lines 116 117) no Hoare annotation was computed. [2020-12-09 18:18:55,548 INFO L262 CegarLoopResult]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2020-12-09 18:18:55,548 INFO L258 CegarLoopResult]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2020-12-09 18:18:55,548 INFO L262 CegarLoopResult]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2020-12-09 18:18:55,548 INFO L262 CegarLoopResult]: For program point L101(lines 101 112) no Hoare annotation was computed. [2020-12-09 18:18:55,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:18:55,562 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:18:55,563 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,563 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,563 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:18:55 BoogieIcfgContainer [2020-12-09 18:18:55,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 18:18:55,568 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 18:18:55,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 18:18:55,568 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 18:18:55,568 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:18:37" (3/4) ... [2020-12-09 18:18:55,571 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 18:18:55,581 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-09 18:18:55,581 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 18:18:55,581 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 18:18:55,582 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 18:18:55,600 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_skolemized_q#valueAsBitvector_13 : bv64 :: ~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_13[63:32]) == ix && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_13[63:63], v_skolemized_q#valueAsBitvector_13[62:52], v_skolemized_q#valueAsBitvector_13[51:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && (\exists v_skolemized_q#valueAsBitvector_13 : bv64 :: v_skolemized_q#valueAsBitvector_13[63:32] == hx && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_13[63:63], v_skolemized_q#valueAsBitvector_13[62:52], v_skolemized_q#valueAsBitvector_13[51:0]) == ~Pluszero~LONGDOUBLE())) && \result == x) && x == ~Pluszero~LONGDOUBLE() [2020-12-09 18:18:55,625 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a689080c-6a13-441a-bb55-c8617dc366a0/bin/utaipan/witness.graphml [2020-12-09 18:18:55,625 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 18:18:55,626 INFO L168 Benchmark]: Toolchain (without parser) took 40566.72 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 32.2 MB in the beginning and 46.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-12-09 18:18:55,626 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 37.5 MB in the beginning and 37.5 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:18:55,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.63 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.9 MB in the beginning and 47.4 MB in the end (delta: -15.5 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-12-09 18:18:55,627 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.14 ms. Allocated memory is still 67.1 MB. Free memory was 47.4 MB in the beginning and 44.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 18:18:55,627 INFO L168 Benchmark]: Boogie Preprocessor took 37.58 ms. Allocated memory is still 67.1 MB. Free memory was 44.9 MB in the beginning and 42.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:18:55,628 INFO L168 Benchmark]: RCFGBuilder took 21791.13 ms. Allocated memory is still 67.1 MB. Free memory was 42.4 MB in the beginning and 36.3 MB in the end (delta: 6.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2020-12-09 18:18:55,628 INFO L168 Benchmark]: TraceAbstraction took 18382.43 ms. Allocated memory is still 67.1 MB. Free memory was 35.7 MB in the beginning and 31.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-12-09 18:18:55,628 INFO L168 Benchmark]: Witness Printer took 57.68 ms. Allocated memory is still 67.1 MB. Free memory was 31.5 MB in the beginning and 46.7 MB in the end (delta: -15.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 18:18:55,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 37.5 MB in the beginning and 37.5 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.63 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.9 MB in the beginning and 47.4 MB in the end (delta: -15.5 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.14 ms. Allocated memory is still 67.1 MB. Free memory was 47.4 MB in the beginning and 44.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.58 ms. Allocated memory is still 67.1 MB. Free memory was 44.9 MB in the beginning and 42.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 21791.13 ms. Allocated memory is still 67.1 MB. Free memory was 42.4 MB in the beginning and 36.3 MB in the end (delta: 6.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18382.43 ms. Allocated memory is still 67.1 MB. Free memory was 35.7 MB in the beginning and 31.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Witness Printer took 57.68 ms. Allocated memory is still 67.1 MB. Free memory was 31.5 MB in the beginning and 46.7 MB in the end (delta: -15.2 MB). Peak memory consumption was 6.3 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 242]: 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: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 171]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 163]: Loop Invariant [2020-12-09 18:18:55,635 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:18:55,635 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_asin && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~Pluszero~LONGDOUBLE() == x) && huge_asin == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 160]: Loop Invariant [2020-12-09 18:18:55,635 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2020-12-09 18:18:55,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] Derived loop invariant: ((((\exists v_skolemized_q#valueAsBitvector_13 : bv64 :: ~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_13[63:32]) == ix && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_13[63:63], v_skolemized_q#valueAsBitvector_13[62:52], v_skolemized_q#valueAsBitvector_13[51:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && (\exists v_skolemized_q#valueAsBitvector_13 : bv64 :: v_skolemized_q#valueAsBitvector_13[63:32] == hx && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_13[63:63], v_skolemized_q#valueAsBitvector_13[62:52], v_skolemized_q#valueAsBitvector_13[51:0]) == ~Pluszero~LONGDOUBLE())) && \result == x) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 258 SDtfs, 328 SDslu, 160 SDs, 0 SdLazy, 35 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 74 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 9.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 57 ConstructedInterpolants, 5 QuantifiedInterpolants, 5780 SizeOfPredicates, 17 NumberOfNonLiveVariables, 294 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...