./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c -s /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/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 01b6390e563edc58f3f7d1f239b082df891f9006 ............................................................................................................................................................................................................................................................................................................................................................................ 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/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c -s /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/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 01b6390e563edc58f3f7d1f239b082df891f9006 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:27:33,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:33,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:33,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:33,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:33,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:33,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:33,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:33,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:33,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:33,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:33,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:33,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:33,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:33,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:33,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:33,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:33,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:33,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:33,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:33,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:33,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:33,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:33,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:33,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:33,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:33,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:33,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:33,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:33,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:33,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:33,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:33,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:33,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:33,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:33,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:33,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:33,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:33,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:33,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:33,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:33,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:27:33,408 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:33,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:33,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:33,410 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:33,410 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:33,410 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:33,412 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:27:33,412 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:33,412 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:33,412 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:27:33,413 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:27:33,413 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:33,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:33,413 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:33,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:27:33,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:33,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:33,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:27:33,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:33,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:27:33,415 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:33,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:27:33,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:27:33,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:33,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:33,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:33,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:33,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:33,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:33,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:33,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:27:33,416 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:27:33,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:27:33,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:27:33,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:33,417 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/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/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 -> 01b6390e563edc58f3f7d1f239b082df891f9006 [2019-10-22 11:27:33,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:33,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:33,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:33,471 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:33,471 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:33,472 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c [2019-10-22 11:27:33,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/data/4ee3c89b1/ec80821b0f9d4305a64f38ea58fab54c/FLAGdd78fb942 [2019-10-22 11:27:33,886 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:33,886 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/sv-benchmarks/c/float-newlib/double_req_bl_1250.c [2019-10-22 11:27:33,892 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/data/4ee3c89b1/ec80821b0f9d4305a64f38ea58fab54c/FLAGdd78fb942 [2019-10-22 11:27:34,296 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/data/4ee3c89b1/ec80821b0f9d4305a64f38ea58fab54c [2019-10-22 11:27:34,300 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:34,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:34,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:34,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:34,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:34,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:34" (1/1) ... [2019-10-22 11:27:34,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69015787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:34, skipping insertion in model container [2019-10-22 11:27:34,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:34" (1/1) ... [2019-10-22 11:27:34,316 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:34,333 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:34,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:34,540 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:34,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:34,584 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:34,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:34 WrapperNode [2019-10-22 11:27:34,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:34,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:34,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:34,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:34,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:34" (1/1) ... [2019-10-22 11:27:34,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:34" (1/1) ... [2019-10-22 11:27:34,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:34,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:34,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:34,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:34,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:34" (1/1) ... [2019-10-22 11:27:34,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:34" (1/1) ... [2019-10-22 11:27:34,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:34" (1/1) ... [2019-10-22 11:27:34,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:34" (1/1) ... [2019-10-22 11:27:34,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:34" (1/1) ... [2019-10-22 11:27:34,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:34" (1/1) ... [2019-10-22 11:27:34,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:34" (1/1) ... [2019-10-22 11:27:34,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:34,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:34,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:34,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:34,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/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 [2019-10-22 11:27:34,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:27:34,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 11:27:34,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:34,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:34,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:27:34,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:27:34,999 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:35,000 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-10-22 11:27:35,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:35 BoogieIcfgContainer [2019-10-22 11:27:35,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:35,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:35,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:35,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:35,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:34" (1/3) ... [2019-10-22 11:27:35,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5974a23d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:35, skipping insertion in model container [2019-10-22 11:27:35,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:34" (2/3) ... [2019-10-22 11:27:35,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5974a23d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:35, skipping insertion in model container [2019-10-22 11:27:35,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:35" (3/3) ... [2019-10-22 11:27:35,008 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1250.c [2019-10-22 11:27:35,018 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:35,032 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:27:35,054 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:27:35,096 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:35,096 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:27:35,096 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:35,096 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:35,096 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:35,097 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:35,097 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:35,097 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:35,110 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-22 11:27:35,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:27:35,116 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:35,117 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:35,118 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:35,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:35,128 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-10-22 11:27:35,140 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:35,141 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167174227] [2019-10-22 11:27:35,142 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:35,142 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:35,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:35,245 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167174227] [2019-10-22 11:27:35,246 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:35,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:27:35,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179724626] [2019-10-22 11:27:35,258 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:27:35,260 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:35,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:27:35,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:27:35,274 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-10-22 11:27:35,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:35,291 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-10-22 11:27:35,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:27:35,293 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 11:27:35,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:35,302 INFO L225 Difference]: With dead ends: 54 [2019-10-22 11:27:35,302 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 11:27:35,305 INFO L600 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 [2019-10-22 11:27:35,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 11:27:35,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-22 11:27:35,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 11:27:35,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-10-22 11:27:35,337 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-10-22 11:27:35,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:35,338 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-10-22 11:27:35,338 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:27:35,338 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-10-22 11:27:35,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:27:35,338 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:35,339 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:35,339 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:35,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:35,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-10-22 11:27:35,340 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:35,340 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993344476] [2019-10-22 11:27:35,340 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:35,340 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:35,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:35,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:35,422 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993344476] [2019-10-22 11:27:35,422 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:35,422 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:35,422 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617404156] [2019-10-22 11:27:35,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:35,424 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:35,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:35,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:35,425 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 4 states. [2019-10-22 11:27:35,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:35,474 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-10-22 11:27:35,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:27:35,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-22 11:27:35,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:35,475 INFO L225 Difference]: With dead ends: 41 [2019-10-22 11:27:35,475 INFO L226 Difference]: Without dead ends: 36 [2019-10-22 11:27:35,476 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:35,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-22 11:27:35,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2019-10-22 11:27:35,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 11:27:35,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-10-22 11:27:35,481 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-10-22 11:27:35,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:35,481 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-10-22 11:27:35,481 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:35,482 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-10-22 11:27:35,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:27:35,482 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:35,482 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:35,483 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:35,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:35,483 INFO L82 PathProgramCache]: Analyzing trace with hash -555778251, now seen corresponding path program 1 times [2019-10-22 11:27:35,483 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:35,483 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047414830] [2019-10-22 11:27:35,483 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:35,484 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:35,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:35,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:35,528 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047414830] [2019-10-22 11:27:35,528 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:35,528 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:35,529 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889507254] [2019-10-22 11:27:35,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:35,529 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:35,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:35,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:35,530 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2019-10-22 11:27:35,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:35,571 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-10-22 11:27:35,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:27:35,572 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-10-22 11:27:35,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:35,572 INFO L225 Difference]: With dead ends: 43 [2019-10-22 11:27:35,573 INFO L226 Difference]: Without dead ends: 38 [2019-10-22 11:27:35,573 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:35,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-22 11:27:35,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2019-10-22 11:27:35,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 11:27:35,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-10-22 11:27:35,580 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2019-10-22 11:27:35,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:35,581 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-10-22 11:27:35,581 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:35,581 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-10-22 11:27:35,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:27:35,581 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:35,582 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:35,582 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:35,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:35,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-10-22 11:27:35,582 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:35,583 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871740586] [2019-10-22 11:27:35,583 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:35,583 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:35,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:27:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:27:35,689 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:27:35,689 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:27:35,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:27:35 BoogieIcfgContainer [2019-10-22 11:27:35,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:27:35,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:27:35,722 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:27:35,722 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:27:35,723 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:35" (3/4) ... [2019-10-22 11:27:35,726 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:27:35,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:27:35,728 INFO L168 Benchmark]: Toolchain (without parser) took 1426.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -121.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:35,729 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:35,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -196.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:35,730 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.94 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:35,730 INFO L168 Benchmark]: Boogie Preprocessor took 50.35 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:35,731 INFO L168 Benchmark]: RCFGBuilder took 326.88 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:35,731 INFO L168 Benchmark]: TraceAbstraction took 718.65 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: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:35,731 INFO L168 Benchmark]: Witness Printer took 5.10 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. [2019-10-22 11:27:35,734 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 283.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -196.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.94 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.35 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 326.88 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 718.65 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: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.10 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 72]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 67. Possible FailurePath: [L67] double x = 0.0 / 0.0; [L68] double y = 0.0 / 0.0; [L27] __uint32_t msw, lsw; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (msw) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lsw) = ew_u.parts.lsw [L36-L37] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L39-L40] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L42-L43] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L46-L47] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L50] return 0; [L55] COND TRUE __fpclassify_double(x) == 0 [L56] return y; [L69] double res = fmax_double(x, y); [L16] return x != x; [L71] COND TRUE !isnan_double(res) [L72] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 110 SDtfs, 22 SDslu, 110 SDs, 0 SdLazy, 30 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 0.1.24-cad4683 [2019-10-22 11:27:37,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:37,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:37,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:37,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:37,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:37,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:37,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:37,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:37,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:37,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:37,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:37,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:37,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:37,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:37,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:37,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:37,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:37,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:37,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:37,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:37,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:37,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:37,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:37,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:37,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:37,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:37,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:37,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:37,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:37,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:37,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:37,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:37,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:37,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:37,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:37,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:37,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:37,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:37,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:37,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:37,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:27:37,823 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:37,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:37,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:37,824 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:37,824 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:37,824 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:37,824 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:37,825 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:37,825 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:37,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:37,825 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:37,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:37,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:37,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:27:37,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:37,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:27:37,826 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:27:37,827 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:27:37,827 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:37,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:27:37,827 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:27:37,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:27:37,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:37,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:37,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:37,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:37,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:37,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:37,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:37,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:27:37,828 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:27:37,829 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:27:37,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:27:37,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:37,829 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/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/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 -> 01b6390e563edc58f3f7d1f239b082df891f9006 [2019-10-22 11:27:37,855 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:37,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:37,869 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:37,871 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:37,871 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:37,872 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c [2019-10-22 11:27:37,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/data/a19dcd7d0/014a671332174bf781d0a873628b65b4/FLAG437d71b29 [2019-10-22 11:27:38,307 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:38,307 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/sv-benchmarks/c/float-newlib/double_req_bl_1250.c [2019-10-22 11:27:38,313 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/data/a19dcd7d0/014a671332174bf781d0a873628b65b4/FLAG437d71b29 [2019-10-22 11:27:38,323 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/data/a19dcd7d0/014a671332174bf781d0a873628b65b4 [2019-10-22 11:27:38,326 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:38,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:38,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:38,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:38,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:38,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:38" (1/1) ... [2019-10-22 11:27:38,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f513c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:38, skipping insertion in model container [2019-10-22 11:27:38,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:38" (1/1) ... [2019-10-22 11:27:38,344 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:38,363 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:38,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:38,573 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:38,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:38,704 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:38,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:38 WrapperNode [2019-10-22 11:27:38,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:38,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:38,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:38,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:38,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:38" (1/1) ... [2019-10-22 11:27:38,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:38" (1/1) ... [2019-10-22 11:27:38,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:38,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:38,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:38,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:38,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:38" (1/1) ... [2019-10-22 11:27:38,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:38" (1/1) ... [2019-10-22 11:27:38,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:38" (1/1) ... [2019-10-22 11:27:38,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:38" (1/1) ... [2019-10-22 11:27:38,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:38" (1/1) ... [2019-10-22 11:27:38,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:38" (1/1) ... [2019-10-22 11:27:38,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:38" (1/1) ... [2019-10-22 11:27:38,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:38,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:38,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:38,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:38,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/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 [2019-10-22 11:27:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-10-22 11:27:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:27:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 11:27:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:38,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:27:39,180 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:39,181 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-10-22 11:27:39,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:39 BoogieIcfgContainer [2019-10-22 11:27:39,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:39,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:39,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:39,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:39,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:38" (1/3) ... [2019-10-22 11:27:39,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7289e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:39, skipping insertion in model container [2019-10-22 11:27:39,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:38" (2/3) ... [2019-10-22 11:27:39,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7289e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:39, skipping insertion in model container [2019-10-22 11:27:39,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:39" (3/3) ... [2019-10-22 11:27:39,189 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1250.c [2019-10-22 11:27:39,198 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:39,205 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:27:39,216 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:27:39,239 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:39,239 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:27:39,239 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:39,239 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:39,239 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:39,239 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:39,240 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:39,240 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:39,251 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-22 11:27:39,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:27:39,257 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:39,257 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:39,259 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:39,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:39,264 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-10-22 11:27:39,271 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:39,271 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303625705] [2019-10-22 11:27:39,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/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 [2019-10-22 11:27:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:39,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:27:39,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:39,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:39,370 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:39,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:39,374 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303625705] [2019-10-22 11:27:39,375 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:39,375 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:27:39,376 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800253399] [2019-10-22 11:27:39,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:27:39,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:39,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:27:39,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:27:39,394 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-10-22 11:27:39,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:39,411 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-10-22 11:27:39,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:27:39,412 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 11:27:39,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:39,422 INFO L225 Difference]: With dead ends: 54 [2019-10-22 11:27:39,422 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 11:27:39,425 INFO L600 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 [2019-10-22 11:27:39,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 11:27:39,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-22 11:27:39,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 11:27:39,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-10-22 11:27:39,458 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-10-22 11:27:39,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:39,460 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-10-22 11:27:39,460 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:27:39,460 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-10-22 11:27:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:27:39,460 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:39,461 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:39,661 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:27:39,661 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:39,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:39,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-10-22 11:27:39,663 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:39,663 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767688239] [2019-10-22 11:27:39,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/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 [2019-10-22 11:27:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:39,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 11:27:39,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:39,756 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:39,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:39,779 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767688239] [2019-10-22 11:27:39,779 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:39,779 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:27:39,779 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741823732] [2019-10-22 11:27:39,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:39,781 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:39,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:39,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:39,782 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 6 states. [2019-10-22 11:27:39,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:39,923 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2019-10-22 11:27:39,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:39,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-10-22 11:27:39,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:39,925 INFO L225 Difference]: With dead ends: 52 [2019-10-22 11:27:39,926 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 11:27:39,926 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:27:39,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 11:27:39,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-10-22 11:27:39,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 11:27:39,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-10-22 11:27:39,934 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-10-22 11:27:39,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:39,936 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-10-22 11:27:39,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:39,937 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-10-22 11:27:39,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:27:39,937 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:39,937 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:40,138 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 11:27:40,138 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:40,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:40,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-10-22 11:27:40,139 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:40,140 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959749018] [2019-10-22 11:27:40,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/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 [2019-10-22 11:27:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:40,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 11:27:40,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:40,259 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:40,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:40,309 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959749018] [2019-10-22 11:27:40,309 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:40,309 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-10-22 11:27:40,309 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065735153] [2019-10-22 11:27:40,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:27:40,310 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:40,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:27:40,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:27:40,316 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 8 states. [2019-10-22 11:27:40,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:40,414 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2019-10-22 11:27:40,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:40,414 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-10-22 11:27:40,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:40,415 INFO L225 Difference]: With dead ends: 36 [2019-10-22 11:27:40,415 INFO L226 Difference]: Without dead ends: 27 [2019-10-22 11:27:40,416 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:27:40,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-22 11:27:40,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2019-10-22 11:27:40,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 11:27:40,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2019-10-22 11:27:40,420 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 14 [2019-10-22 11:27:40,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:40,420 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2019-10-22 11:27:40,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:27:40,421 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2019-10-22 11:27:40,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:27:40,421 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:40,422 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:40,622 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 11:27:40,622 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:40,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:40,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1012428811, now seen corresponding path program 1 times [2019-10-22 11:27:40,623 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:40,623 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440365446] [2019-10-22 11:27:40,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/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 [2019-10-22 11:27:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:40,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 11:27:40,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:40,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:40,743 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:40,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:40,758 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440365446] [2019-10-22 11:27:40,758 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:40,758 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:27:40,758 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570232958] [2019-10-22 11:27:40,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:40,759 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:40,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:40,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:40,760 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 6 states. [2019-10-22 11:27:40,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:40,830 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2019-10-22 11:27:40,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:40,830 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-10-22 11:27:40,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:40,831 INFO L225 Difference]: With dead ends: 52 [2019-10-22 11:27:40,831 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 11:27:40,831 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:27:40,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 11:27:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-10-22 11:27:40,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 11:27:40,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2019-10-22 11:27:40,836 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 16 [2019-10-22 11:27:40,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:40,837 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-10-22 11:27:40,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2019-10-22 11:27:40,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:27:40,838 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:40,838 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:41,046 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-10-22 11:27:41,046 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:41,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:41,047 INFO L82 PathProgramCache]: Analyzing trace with hash -356841937, now seen corresponding path program 1 times [2019-10-22 11:27:41,047 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:41,047 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549270695] [2019-10-22 11:27:41,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-10-22 11:27:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:41,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-22 11:27:41,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:41,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:41,207 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:41,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:41,244 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549270695] [2019-10-22 11:27:41,244 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:41,244 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-10-22 11:27:41,245 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802649784] [2019-10-22 11:27:41,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 11:27:41,245 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:41,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 11:27:41,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:27:41,246 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 9 states. [2019-10-22 11:27:41,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:41,368 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2019-10-22 11:27:41,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:27:41,368 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-10-22 11:27:41,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:41,369 INFO L225 Difference]: With dead ends: 32 [2019-10-22 11:27:41,369 INFO L226 Difference]: Without dead ends: 23 [2019-10-22 11:27:41,369 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2019-10-22 11:27:41,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-22 11:27:41,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-22 11:27:41,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-22 11:27:41,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-10-22 11:27:41,373 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 18 [2019-10-22 11:27:41,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:41,373 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-10-22 11:27:41,373 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 11:27:41,373 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-10-22 11:27:41,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:27:41,374 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:41,374 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:41,583 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-10-22 11:27:41,583 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:41,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:41,583 INFO L82 PathProgramCache]: Analyzing trace with hash -208376157, now seen corresponding path program 1 times [2019-10-22 11:27:41,584 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:41,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953703578] [2019-10-22 11:27:41,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-10-22 11:27:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:41,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 11:27:41,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:41,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:41,704 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:41,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:41,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953703578] [2019-10-22 11:27:41,731 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:41,731 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-10-22 11:27:41,731 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876152125] [2019-10-22 11:27:41,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:27:41,732 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:41,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:27:41,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:27:41,733 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 8 states. [2019-10-22 11:27:41,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:41,801 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2019-10-22 11:27:41,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:41,801 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-10-22 11:27:41,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:41,802 INFO L225 Difference]: With dead ends: 23 [2019-10-22 11:27:41,802 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:27:41,802 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:27:41,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:27:41,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:27:41,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:27:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:27:41,803 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-10-22 11:27:41,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:41,803 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:27:41,803 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:27:41,804 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:27:41,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:27:42,004 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-10-22 11:27:42,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:27:42,167 INFO L443 ceAbstractionStarter]: For program point L60(line 60) no Hoare annotation was computed. [2019-10-22 11:27:42,167 INFO L443 ceAbstractionStarter]: For program point L60-2(line 60) no Hoare annotation was computed. [2019-10-22 11:27:42,167 INFO L439 ceAbstractionStarter]: At program point L60-3(lines 53 61) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_fmax_double_~y .cse0) (= |ULTIMATE.start_fmax_double_#res| .cse0))) [2019-10-22 11:27:42,168 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2019-10-22 11:27:42,168 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:27:42,168 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:27:42,168 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:27:42,168 INFO L443 ceAbstractionStarter]: For program point L57(lines 57 58) no Hoare annotation was computed. [2019-10-22 11:27:42,168 INFO L439 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_fmax_double_~y .cse0) (= |ULTIMATE.start_fmax_double_#res| .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|))) [2019-10-22 11:27:42,168 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:27:42,168 INFO L443 ceAbstractionStarter]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2019-10-22 11:27:42,169 INFO L439 ceAbstractionStarter]: At program point L29-2(lines 29 34) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_fmax_double_~x .cse0) (= ULTIMATE.start_fmax_double_~y .cse0))) [2019-10-22 11:27:42,169 INFO L443 ceAbstractionStarter]: For program point L29-3(lines 26 51) no Hoare annotation was computed. [2019-10-22 11:27:42,169 INFO L443 ceAbstractionStarter]: For program point L29-5(lines 29 34) no Hoare annotation was computed. [2019-10-22 11:27:42,169 INFO L439 ceAbstractionStarter]: At program point L29-6(lines 29 34) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_fmax_double_~x .cse0) (= ULTIMATE.start_fmax_double_~y .cse0))) [2019-10-22 11:27:42,169 INFO L443 ceAbstractionStarter]: For program point L29-7(lines 26 51) no Hoare annotation was computed. [2019-10-22 11:27:42,169 INFO L439 ceAbstractionStarter]: At program point L50(lines 26 51) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_fmax_double_~x .cse0) (= ULTIMATE.start_fmax_double_~y .cse0))) [2019-10-22 11:27:42,169 INFO L439 ceAbstractionStarter]: At program point L50-1(lines 26 51) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (let ((.cse0 (= ULTIMATE.start_fmax_double_~y .cse1))) (or (and (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|)) .cse0) (and (= ULTIMATE.start_fmax_double_~x .cse1) .cse0)))) [2019-10-22 11:27:42,170 INFO L443 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2019-10-22 11:27:42,170 INFO L443 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2019-10-22 11:27:42,170 INFO L446 ceAbstractionStarter]: At program point L75(lines 63 76) the Hoare annotation is: true [2019-10-22 11:27:42,170 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 50) no Hoare annotation was computed. [2019-10-22 11:27:42,170 INFO L443 ceAbstractionStarter]: For program point L42-1(lines 42 50) no Hoare annotation was computed. [2019-10-22 11:27:42,170 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 74) no Hoare annotation was computed. [2019-10-22 11:27:42,172 INFO L443 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-10-22 11:27:42,172 INFO L443 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2019-10-22 11:27:42,172 INFO L443 ceAbstractionStarter]: For program point L39(lines 39 50) no Hoare annotation was computed. [2019-10-22 11:27:42,172 INFO L443 ceAbstractionStarter]: For program point L39-1(lines 39 50) no Hoare annotation was computed. [2019-10-22 11:27:42,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,180 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,184 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,184 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,188 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,189 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,189 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,190 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,190 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,190 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,190 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,192 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,192 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,192 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,193 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,193 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,193 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,194 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,194 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,194 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,198 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:27:42 BoogieIcfgContainer [2019-10-22 11:27:42,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:27:42,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:27:42,200 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:27:42,201 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:27:42,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:39" (3/4) ... [2019-10-22 11:27:42,207 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:27:42,229 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-10-22 11:27:42,230 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 11:27:42,230 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:27:42,259 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-10-22 11:27:42,260 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result [2019-10-22 11:27:42,261 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0bv32 == \result) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) || (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-10-22 11:27:42,299 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_759dba4b-e43d-416e-9907-3bb27e0049ca/bin/utaipan/witness.graphml [2019-10-22 11:27:42,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:27:42,303 INFO L168 Benchmark]: Toolchain (without parser) took 3975.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 951.0 MB in the beginning and 904.1 MB in the end (delta: 46.9 MB). Peak memory consumption was 186.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:42,304 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:42,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:42,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.39 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:42,304 INFO L168 Benchmark]: Boogie Preprocessor took 27.42 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. [2019-10-22 11:27:42,305 INFO L168 Benchmark]: RCFGBuilder took 406.75 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: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:42,305 INFO L168 Benchmark]: TraceAbstraction took 3017.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.8 MB in the end (delta: 189.5 MB). Peak memory consumption was 189.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:42,305 INFO L168 Benchmark]: Witness Printer took 101.12 ms. Allocated memory is still 1.2 GB. Free memory was 910.8 MB in the beginning and 904.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:42,310 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 382.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.39 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.42 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 406.75 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: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3017.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.8 MB in the end (delta: 189.5 MB). Peak memory consumption was 189.5 MB. Max. memory is 11.5 GB. * Witness Printer took 101.12 ms. Allocated memory is still 1.2 GB. Free memory was 910.8 MB in the beginning and 904.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 72]: 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: 16]: Loop Invariant [2019-10-22 11:27:42,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant [2019-10-22 11:27:42,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 26]: Loop Invariant [2019-10-22 11:27:42,321 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,321 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,321 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,321 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,322 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,322 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!(0bv32 == \result) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) || (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 29]: Loop Invariant [2019-10-22 11:27:42,326 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,326 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,326 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,326 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 26]: Loop Invariant [2019-10-22 11:27:42,327 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,327 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,330 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,336 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 53]: Loop Invariant [2019-10-22 11:27:42,336 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:27:42,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 182 SDtfs, 106 SDslu, 504 SDs, 0 SdLazy, 131 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 42 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 19 NumberOfFragments, 94 HoareAnnotationTreeSize, 7 FomulaSimplifications, 273 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 9102 SizeOfPredicates, 26 NumberOfNonLiveVariables, 321 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...