./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 ........................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 13:53:59,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:53:59,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:53:59,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:53:59,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:53:59,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:53:59,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:53:59,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:53:59,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:53:59,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:53:59,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:53:59,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:53:59,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:53:59,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:53:59,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:53:59,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:53:59,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:53:59,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:53:59,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:53:59,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:53:59,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:53:59,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:53:59,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:53:59,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:53:59,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:53:59,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:53:59,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:53:59,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:53:59,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:53:59,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:53:59,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:53:59,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:53:59,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:53:59,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:53:59,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:53:59,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:53:59,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:53:59,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:53:59,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:53:59,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:53:59,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:53:59,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 13:53:59,532 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:53:59,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:53:59,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:53:59,533 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:53:59,533 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:53:59,533 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:53:59,534 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 13:53:59,534 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:53:59,534 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:53:59,534 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 13:53:59,534 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 13:53:59,534 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:53:59,534 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 13:53:59,535 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 13:53:59,535 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 13:53:59,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:53:59,535 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:53:59,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:53:59,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:53:59,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:53:59,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:53:59,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:53:59,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:53:59,536 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:53:59,536 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:53:59,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:53:59,536 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:53:59,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:53:59,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:53:59,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:53:59,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:53:59,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:53:59,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:53:59,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:53:59,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:53:59,537 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 13:53:59,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:53:59,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:53:59,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:53:59,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:53:59,538 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_558de006-f2c6-45a5-bcc3-6ade354fb278/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(__VERIFIER_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 -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 [2019-12-07 13:53:59,636 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:53:59,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:53:59,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:53:59,648 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:53:59,648 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:53:59,648 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2019-12-07 13:53:59,686 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/data/22dc98d86/31f43d988f30425896a5cde38cb6796b/FLAG6c7b89203 [2019-12-07 13:54:00,094 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:54:00,095 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2019-12-07 13:54:00,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/data/22dc98d86/31f43d988f30425896a5cde38cb6796b/FLAG6c7b89203 [2019-12-07 13:54:00,110 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/data/22dc98d86/31f43d988f30425896a5cde38cb6796b [2019-12-07 13:54:00,113 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:54:00,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:54:00,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:54:00,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:54:00,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:54:00,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:54:00" (1/1) ... [2019-12-07 13:54:00,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50fedd54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:00, skipping insertion in model container [2019-12-07 13:54:00,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:54:00" (1/1) ... [2019-12-07 13:54:00,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:54:00,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:54:00,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:54:00,311 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:54:00,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:54:00,340 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:54:00,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:00 WrapperNode [2019-12-07 13:54:00,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:54:00,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:54:00,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:54:00,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:54:00,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:00" (1/1) ... [2019-12-07 13:54:00,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:00" (1/1) ... [2019-12-07 13:54:00,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:54:00,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:54:00,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:54:00,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:54:00,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:00" (1/1) ... [2019-12-07 13:54:00,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:00" (1/1) ... [2019-12-07 13:54:00,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:00" (1/1) ... [2019-12-07 13:54:00,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:00" (1/1) ... [2019-12-07 13:54:00,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:00" (1/1) ... [2019-12-07 13:54:00,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:00" (1/1) ... [2019-12-07 13:54:00,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:00" (1/1) ... [2019-12-07 13:54:00,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:54:00,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:54:00,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:54:00,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:54:00,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/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 [2019-12-07 13:54:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:54:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 13:54:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 13:54:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 13:54:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:54:00,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:54:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 13:54:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:54:00,614 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:54:00,614 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 13:54:00,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:54:00 BoogieIcfgContainer [2019-12-07 13:54:00,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:54:00,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:54:00,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:54:00,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:54:00,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:54:00" (1/3) ... [2019-12-07 13:54:00,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f3d1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:54:00, skipping insertion in model container [2019-12-07 13:54:00,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:00" (2/3) ... [2019-12-07 13:54:00,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f3d1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:54:00, skipping insertion in model container [2019-12-07 13:54:00,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:54:00" (3/3) ... [2019-12-07 13:54:00,620 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2019-12-07 13:54:00,626 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:54:00,630 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:54:00,639 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:54:00,654 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:54:00,655 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:54:00,655 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:54:00,655 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:54:00,655 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:54:00,655 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:54:00,655 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:54:00,655 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:54:00,664 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-12-07 13:54:00,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 13:54:00,668 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:54:00,668 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:54:00,668 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:54:00,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:00,672 INFO L82 PathProgramCache]: Analyzing trace with hash -2144564902, now seen corresponding path program 1 times [2019-12-07 13:54:00,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:54:00,678 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880523379] [2019-12-07 13:54:00,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:54:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:54:00,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:54:00,748 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880523379] [2019-12-07 13:54:00,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:54:00,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:54:00,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054308564] [2019-12-07 13:54:00,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:54:00,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 13:54:00,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:54:00,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:54:00,763 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-12-07 13:54:00,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:54:00,774 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2019-12-07 13:54:00,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:54:00,775 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-12-07 13:54:00,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:54:00,781 INFO L225 Difference]: With dead ends: 39 [2019-12-07 13:54:00,781 INFO L226 Difference]: Without dead ends: 18 [2019-12-07 13:54:00,783 INFO L630 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 [2019-12-07 13:54:00,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-07 13:54:00,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 13:54:00,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 13:54:00,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-12-07 13:54:00,804 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2019-12-07 13:54:00,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:54:00,804 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-12-07 13:54:00,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:54:00,805 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-12-07 13:54:00,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 13:54:00,805 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:54:00,805 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:54:00,805 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:54:00,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:00,806 INFO L82 PathProgramCache]: Analyzing trace with hash 524805313, now seen corresponding path program 1 times [2019-12-07 13:54:00,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:54:00,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227248978] [2019-12-07 13:54:00,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:54:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:54:00,866 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 13:54:00,866 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:54:00,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:54:00 BoogieIcfgContainer [2019-12-07 13:54:00,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:54:00,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:54:00,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:54:00,883 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:54:00,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:54:00" (3/4) ... [2019-12-07 13:54:00,885 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 13:54:00,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:54:00,887 INFO L168 Benchmark]: Toolchain (without parser) took 772.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 941.6 MB in the beginning and 1.0 GB in the end (delta: -87.2 MB). Peak memory consumption was 1.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:54:00,887 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 957.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:54:00,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:54:00,888 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:54:00,889 INFO L168 Benchmark]: Boogie Preprocessor took 19.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:54:00,889 INFO L168 Benchmark]: RCFGBuilder took 227.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:54:00,889 INFO L168 Benchmark]: TraceAbstraction took 266.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:54:00,890 INFO L168 Benchmark]: Witness Printer took 2.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:54:00,892 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 957.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 225.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 227.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 266.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 23, overapproximation of someUnaryFLOAToperation at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L75] float x = -0.0f; [L13] __uint32_t w; [L15] int exponent_less_127; [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L25] COND FALSE !(exponent_less_127 < 23) [L41] COND FALSE !(exponent_less_127 == 128) [L45] return x; [L76] float res = round_float(x); [L79] EXPR res == -0.0f && __signbit_float(res) == 1 [L79] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L80] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 0.1.25-f470102 [2019-12-07 13:54:02,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:54:02,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:54:02,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:54:02,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:54:02,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:54:02,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:54:02,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:54:02,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:54:02,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:54:02,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:54:02,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:54:02,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:54:02,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:54:02,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:54:02,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:54:02,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:54:02,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:54:02,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:54:02,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:54:02,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:54:02,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:54:02,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:54:02,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:54:02,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:54:02,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:54:02,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:54:02,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:54:02,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:54:02,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:54:02,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:54:02,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:54:02,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:54:02,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:54:02,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:54:02,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:54:02,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:54:02,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:54:02,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:54:02,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:54:02,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:54:02,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 13:54:02,339 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:54:02,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:54:02,339 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:54:02,339 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:54:02,340 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:54:02,340 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:54:02,340 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:54:02,340 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:54:02,340 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:54:02,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:54:02,341 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:54:02,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:54:02,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:54:02,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:54:02,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:54:02,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:54:02,341 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:54:02,342 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:54:02,342 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:54:02,342 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:54:02,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:54:02,342 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:54:02,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:54:02,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:54:02,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:54:02,343 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:54:02,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:54:02,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:54:02,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:54:02,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:54:02,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:54:02,344 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 13:54:02,344 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:54:02,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:54:02,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:54:02,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:54:02,344 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_558de006-f2c6-45a5-bcc3-6ade354fb278/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(__VERIFIER_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 -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 [2019-12-07 13:54:02,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:54:02,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:54:02,521 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:54:02,521 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:54:02,522 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:54:02,522 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2019-12-07 13:54:02,559 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/data/468201a03/f0b10281a5384c94ac0d98ac22100ed4/FLAG078fa2200 [2019-12-07 13:54:02,895 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:54:02,896 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2019-12-07 13:54:02,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/data/468201a03/f0b10281a5384c94ac0d98ac22100ed4/FLAG078fa2200 [2019-12-07 13:54:03,328 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/data/468201a03/f0b10281a5384c94ac0d98ac22100ed4 [2019-12-07 13:54:03,332 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:54:03,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:54:03,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:54:03,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:54:03,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:54:03,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:54:03" (1/1) ... [2019-12-07 13:54:03,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346e9d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:03, skipping insertion in model container [2019-12-07 13:54:03,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:54:03" (1/1) ... [2019-12-07 13:54:03,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:54:03,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:54:03,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:54:03,475 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:54:03,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:54:03,507 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:54:03,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:03 WrapperNode [2019-12-07 13:54:03,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:54:03,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:54:03,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:54:03,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:54:03,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:03" (1/1) ... [2019-12-07 13:54:03,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:03" (1/1) ... [2019-12-07 13:54:03,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:54:03,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:54:03,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:54:03,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:54:03,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:03" (1/1) ... [2019-12-07 13:54:03,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:03" (1/1) ... [2019-12-07 13:54:03,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:03" (1/1) ... [2019-12-07 13:54:03,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:03" (1/1) ... [2019-12-07 13:54:03,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:03" (1/1) ... [2019-12-07 13:54:03,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:03" (1/1) ... [2019-12-07 13:54:03,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:03" (1/1) ... [2019-12-07 13:54:03,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:54:03,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:54:03,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:54:03,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:54:03,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/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 [2019-12-07 13:54:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:54:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 13:54:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 13:54:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:54:03,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:54:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 13:54:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 13:54:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:54:03,820 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:54:03,820 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 13:54:03,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:54:03 BoogieIcfgContainer [2019-12-07 13:54:03,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:54:03,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:54:03,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:54:03,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:54:03,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:54:03" (1/3) ... [2019-12-07 13:54:03,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b48c0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:54:03, skipping insertion in model container [2019-12-07 13:54:03,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:54:03" (2/3) ... [2019-12-07 13:54:03,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b48c0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:54:03, skipping insertion in model container [2019-12-07 13:54:03,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:54:03" (3/3) ... [2019-12-07 13:54:03,827 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2019-12-07 13:54:03,833 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:54:03,837 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:54:03,845 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:54:03,860 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:54:03,861 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:54:03,861 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:54:03,861 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:54:03,861 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:54:03,861 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:54:03,861 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:54:03,861 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:54:03,870 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-12-07 13:54:03,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 13:54:03,874 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:54:03,875 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:54:03,875 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:54:03,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:03,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2019-12-07 13:54:03,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:54:03,886 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886932426] [2019-12-07 13:54:03,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/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 [2019-12-07 13:54:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:54:03,950 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 13:54:03,953 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:54:03,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:54:03,962 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:54:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:54:03,965 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886932426] [2019-12-07 13:54:03,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:54:03,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 13:54:03,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527608860] [2019-12-07 13:54:03,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:54:03,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:54:03,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:54:03,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:54:03,980 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-12-07 13:54:03,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:54:03,996 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2019-12-07 13:54:03,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:54:03,997 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 13:54:03,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:54:04,005 INFO L225 Difference]: With dead ends: 48 [2019-12-07 13:54:04,005 INFO L226 Difference]: Without dead ends: 22 [2019-12-07 13:54:04,007 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:54:04,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-07 13:54:04,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-07 13:54:04,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-07 13:54:04,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-12-07 13:54:04,030 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2019-12-07 13:54:04,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:54:04,030 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-12-07 13:54:04,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:54:04,030 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-12-07 13:54:04,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 13:54:04,030 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:54:04,031 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:54:04,231 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:54:04,231 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:54:04,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:04,232 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2019-12-07 13:54:04,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:54:04,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299589809] [2019-12-07 13:54:04,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/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 [2019-12-07 13:54:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:54:04,313 INFO L264 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 13:54:04,314 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:54:04,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:54:04,360 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:54:04,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:54:04,414 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299589809] [2019-12-07 13:54:04,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:54:04,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 13:54:04,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121095155] [2019-12-07 13:54:04,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 13:54:04,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:54:04,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 13:54:04,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 13:54:04,416 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 8 states. [2019-12-07 13:54:04,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:54:04,484 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2019-12-07 13:54:04,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:54:04,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-12-07 13:54:04,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:54:04,485 INFO L225 Difference]: With dead ends: 34 [2019-12-07 13:54:04,485 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 13:54:04,486 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-12-07 13:54:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 13:54:04,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 13:54:04,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 13:54:04,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-12-07 13:54:04,489 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2019-12-07 13:54:04,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:54:04,490 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-12-07 13:54:04,490 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 13:54:04,490 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-12-07 13:54:04,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 13:54:04,490 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:54:04,490 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:54:04,691 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 13:54:04,691 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:54:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:04,692 INFO L82 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2019-12-07 13:54:04,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:54:04,693 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936131548] [2019-12-07 13:54:04,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/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 [2019-12-07 13:54:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:54:04,760 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 13:54:04,761 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:54:04,797 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:54:04,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:54:04,811 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:54:04,813 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:54:04,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:54:04,855 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936131548] [2019-12-07 13:54:04,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:54:04,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-12-07 13:54:04,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243546924] [2019-12-07 13:54:04,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 13:54:04,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:54:04,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 13:54:04,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-12-07 13:54:04,856 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2019-12-07 13:54:05,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:54:05,006 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-12-07 13:54:05,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 13:54:05,006 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-12-07 13:54:05,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:54:05,007 INFO L225 Difference]: With dead ends: 23 [2019-12-07 13:54:05,007 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 13:54:05,007 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-12-07 13:54:05,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 13:54:05,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 13:54:05,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 13:54:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2019-12-07 13:54:05,011 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2019-12-07 13:54:05,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:54:05,011 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2019-12-07 13:54:05,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 13:54:05,011 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2019-12-07 13:54:05,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 13:54:05,011 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:54:05,012 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:54:05,212 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 13:54:05,212 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:54:05,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:54:05,213 INFO L82 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2019-12-07 13:54:05,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:54:05,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476248055] [2019-12-07 13:54:05,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/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 [2019-12-07 13:54:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:54:05,261 INFO L264 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 19 conjunts are in the unsatisfiable core [2019-12-07 13:54:05,263 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:54:05,312 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:54:05,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:54:05,337 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:54:05,338 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:54:05,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:54:05,640 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476248055] [2019-12-07 13:54:05,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:54:05,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 17 [2019-12-07 13:54:05,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749593083] [2019-12-07 13:54:05,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-12-07 13:54:05,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:54:05,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-12-07 13:54:05,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-12-07 13:54:05,642 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 17 states. [2019-12-07 13:54:05,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:54:05,843 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2019-12-07 13:54:05,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 13:54:05,843 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2019-12-07 13:54:05,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:54:05,844 INFO L225 Difference]: With dead ends: 20 [2019-12-07 13:54:05,844 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 13:54:05,844 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2019-12-07 13:54:05,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 13:54:05,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 13:54:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 13:54:05,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 13:54:05,845 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-12-07 13:54:05,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:54:05,845 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:54:05,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-12-07 13:54:05,846 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 13:54:05,846 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 13:54:06,046 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 13:54:06,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 13:54:06,249 INFO L242 CegarLoopResult]: At program point L64(lines 55 65) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start_round_float_#res|) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) |ULTIMATE.start_main_#t~short8| (= ULTIMATE.start_main_~res~0 .cse0) (= (_ bv0 32) (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32))) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)) .cse0) (= ULTIMATE.start___signbit_float_~x .cse0) (= ULTIMATE.start_round_float_~x .cse0))) [2019-12-07 13:54:06,250 INFO L242 CegarLoopResult]: At program point L52(lines 12 53) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start_round_float_#res|) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= ULTIMATE.start_round_float_~x .cse0))) [2019-12-07 13:54:06,250 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 13:54:06,250 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 13:54:06,250 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 13:54:06,250 INFO L246 CegarLoopResult]: For program point L28(lines 28 30) no Hoare annotation was computed. [2019-12-07 13:54:06,251 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2019-12-07 13:54:06,251 INFO L246 CegarLoopResult]: For program point L41(lines 41 45) no Hoare annotation was computed. [2019-12-07 13:54:06,251 INFO L246 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2019-12-07 13:54:06,251 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 13:54:06,251 INFO L246 CegarLoopResult]: For program point L25(lines 25 46) no Hoare annotation was computed. [2019-12-07 13:54:06,251 INFO L246 CegarLoopResult]: For program point L58-1(lines 58 62) no Hoare annotation was computed. [2019-12-07 13:54:06,251 INFO L242 CegarLoopResult]: At program point L58-2(lines 58 62) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start_round_float_#res|) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) |ULTIMATE.start_main_#t~short8| (= ULTIMATE.start_main_~res~0 .cse0) (= ULTIMATE.start___signbit_float_~x .cse0) (= ULTIMATE.start_round_float_~x .cse0))) [2019-12-07 13:54:06,252 INFO L246 CegarLoopResult]: For program point L58-3(lines 58 62) no Hoare annotation was computed. [2019-12-07 13:54:06,252 INFO L246 CegarLoopResult]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-12-07 13:54:06,252 INFO L242 CegarLoopResult]: At program point L17-2(lines 17 21) the Hoare annotation is: (= ULTIMATE.start_round_float_~x (fp.neg (_ +zero 8 24))) [2019-12-07 13:54:06,252 INFO L246 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2019-12-07 13:54:06,252 INFO L246 CegarLoopResult]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2019-12-07 13:54:06,252 INFO L246 CegarLoopResult]: For program point L79-2(lines 79 82) no Hoare annotation was computed. [2019-12-07 13:54:06,252 INFO L246 CegarLoopResult]: For program point L26(lines 26 39) no Hoare annotation was computed. [2019-12-07 13:54:06,252 INFO L249 CegarLoopResult]: At program point L84(lines 67 85) the Hoare annotation is: true [2019-12-07 13:54:06,252 INFO L246 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2019-12-07 13:54:06,252 INFO L246 CegarLoopResult]: For program point L47(lines 47 51) no Hoare annotation was computed. [2019-12-07 13:54:06,252 INFO L246 CegarLoopResult]: For program point L47-1(lines 12 53) no Hoare annotation was computed. [2019-12-07 13:54:06,253 INFO L246 CegarLoopResult]: For program point L47-2(lines 47 51) no Hoare annotation was computed. [2019-12-07 13:54:06,262 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,263 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,263 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,263 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,265 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,265 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,265 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,265 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,268 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,268 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,268 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,268 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:54:06 BoogieIcfgContainer [2019-12-07 13:54:06,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:54:06,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:54:06,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:54:06,271 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:54:06,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:54:03" (3/4) ... [2019-12-07 13:54:06,274 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 13:54:06,282 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-12-07 13:54:06,282 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 13:54:06,282 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 13:54:06,300 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2019-12-07 13:54:06,301 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2019-12-07 13:54:06,301 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2019-12-07 13:54:06,321 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_558de006-f2c6-45a5-bcc3-6ade354fb278/bin/utaipan/witness.graphml [2019-12-07 13:54:06,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:54:06,323 INFO L168 Benchmark]: Toolchain (without parser) took 2989.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 952.4 MB in the beginning and 888.6 MB in the end (delta: 63.8 MB). Peak memory consumption was 193.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:54:06,323 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:54:06,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.68 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:54:06,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:54:06,324 INFO L168 Benchmark]: Boogie Preprocessor took 22.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:54:06,324 INFO L168 Benchmark]: RCFGBuilder took 234.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:54:06,324 INFO L168 Benchmark]: TraceAbstraction took 2449.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.6 MB in the end (delta: 205.0 MB). Peak memory consumption was 205.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:54:06,325 INFO L168 Benchmark]: Witness Printer took 50.16 ms. Allocated memory is still 1.2 GB. Free memory is still 888.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:54:06,326 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.68 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 234.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2449.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.6 MB in the end (delta: 205.0 MB). Peak memory consumption was 205.0 MB. Max. memory is 11.5 GB. * Witness Printer took 50.16 ms. Allocated memory is still 1.2 GB. Free memory is still 888.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 55]: Loop Invariant [2019-12-07 13:54:06,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 58]: Loop Invariant [2019-12-07 13:54:06,332 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,332 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,332 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,332 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 12]: Loop Invariant [2019-12-07 13:54:06,334 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,334 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,334 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,334 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2019-12-07 13:54:06,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 62 SDtfs, 163 SDslu, 63 SDs, 0 SdLazy, 89 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 158 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 59 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 19 QuantifiedInterpolants, 10036 SizeOfPredicates, 25 NumberOfNonLiveVariables, 146 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...