./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/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer --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 Automizer --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/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer --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 Automizer --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 [2019-11-15 23:58:32,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:58:32,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:58:32,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:58:32,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:58:32,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:58:32,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:58:32,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:58:32,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:58:32,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:58:32,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:58:32,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:58:32,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:58:32,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:58:32,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:58:32,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:58:32,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:58:32,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:58:32,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:58:32,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:58:32,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:58:32,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:58:32,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:58:32,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:58:32,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:58:32,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:58:32,517 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:58:32,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:58:32,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:58:32,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:58:32,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:58:32,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:58:32,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:58:32,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:58:32,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:58:32,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:58:32,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:58:32,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:58:32,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:58:32,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:58:32,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:58:32,527 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:58:32,543 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:58:32,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:58:32,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:58:32,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:58:32,545 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:58:32,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:58:32,546 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:58:32,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:58:32,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:58:32,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:58:32,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:58:32,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:58:32,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:58:32,547 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:58:32,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:58:32,547 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:58:32,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:58:32,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:58:32,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:58:32,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:58:32,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:58:32,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:58:32,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:58:32,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:58:32,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:58:32,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:58:32,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:58:32,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:58:32,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer 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 -> Automizer 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 [2019-11-15 23:58:32,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:58:32,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:58:32,603 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:58:32,605 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:58:32,605 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:58:32,606 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c [2019-11-15 23:58:32,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/data/90b734878/ddf9a2254bb54c3fb0f9beedd5e4bac3/FLAGa1da3bace [2019-11-15 23:58:33,028 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:58:33,029 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/sv-benchmarks/c/float-newlib/double_req_bl_1250.c [2019-11-15 23:58:33,034 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/data/90b734878/ddf9a2254bb54c3fb0f9beedd5e4bac3/FLAGa1da3bace [2019-11-15 23:58:33,045 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/data/90b734878/ddf9a2254bb54c3fb0f9beedd5e4bac3 [2019-11-15 23:58:33,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:58:33,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:58:33,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:58:33,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:58:33,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:58:33,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:58:33" (1/1) ... [2019-11-15 23:58:33,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a98843e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:33, skipping insertion in model container [2019-11-15 23:58:33,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:58:33" (1/1) ... [2019-11-15 23:58:33,062 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:58:33,080 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:58:33,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:58:33,290 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:58:33,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:58:33,331 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:58:33,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:33 WrapperNode [2019-11-15 23:58:33,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:58:33,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:58:33,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:58:33,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:58:33,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:33" (1/1) ... [2019-11-15 23:58:33,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:33" (1/1) ... [2019-11-15 23:58:33,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:58:33,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:58:33,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:58:33,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:58:33,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:33" (1/1) ... [2019-11-15 23:58:33,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:33" (1/1) ... [2019-11-15 23:58:33,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:33" (1/1) ... [2019-11-15 23:58:33,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:33" (1/1) ... [2019-11-15 23:58:33,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:33" (1/1) ... [2019-11-15 23:58:33,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:33" (1/1) ... [2019-11-15 23:58:33,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:33" (1/1) ... [2019-11-15 23:58:33,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:58:33,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:58:33,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:58:33,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:58:33,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/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 [2019-11-15 23:58:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:58:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 23:58:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:58:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:58:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:58:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:58:33,865 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:58:33,865 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 23:58:33,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:58:33 BoogieIcfgContainer [2019-11-15 23:58:33,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:58:33,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:58:33,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:58:33,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:58:33,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:58:33" (1/3) ... [2019-11-15 23:58:33,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b50ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:58:33, skipping insertion in model container [2019-11-15 23:58:33,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:33" (2/3) ... [2019-11-15 23:58:33,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b50ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:58:33, skipping insertion in model container [2019-11-15 23:58:33,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:58:33" (3/3) ... [2019-11-15 23:58:33,873 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1250.c [2019-11-15 23:58:33,882 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:58:33,889 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:58:33,901 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:58:33,922 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:58:33,922 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:58:33,922 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:58:33,922 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:58:33,923 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:58:33,923 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:58:33,923 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:58:33,923 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:58:33,937 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-15 23:58:33,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:58:33,943 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:58:33,943 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:58:33,945 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:58:33,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:58:33,950 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-11-15 23:58:33,958 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:58:33,958 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206994324] [2019-11-15 23:58:33,958 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:58:33,959 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:58:33,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:58:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:58:34,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:34,057 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206994324] [2019-11-15 23:58:34,058 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:58:34,058 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:58:34,059 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352862684] [2019-11-15 23:58:34,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:58:34,063 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:58:34,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:58:34,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:58:34,077 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-15 23:58:34,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:58:34,094 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-11-15 23:58:34,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:58:34,095 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 23:58:34,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:58:34,104 INFO L225 Difference]: With dead ends: 54 [2019-11-15 23:58:34,105 INFO L226 Difference]: Without dead ends: 25 [2019-11-15 23:58:34,107 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 [2019-11-15 23:58:34,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-15 23:58:34,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-15 23:58:34,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-15 23:58:34,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-11-15 23:58:34,145 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-11-15 23:58:34,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:58:34,146 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-11-15 23:58:34,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:58:34,146 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-11-15 23:58:34,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:58:34,147 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:58:34,147 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:58:34,147 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:58:34,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:58:34,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-11-15 23:58:34,148 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:58:34,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193917446] [2019-11-15 23:58:34,149 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:58:34,149 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:58:34,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:58:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:58:34,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:34,261 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193917446] [2019-11-15 23:58:34,261 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:58:34,261 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:58:34,261 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569247488] [2019-11-15 23:58:34,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:58:34,263 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:58:34,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:58:34,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:58:34,264 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 4 states. [2019-11-15 23:58:34,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:58:34,346 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-11-15 23:58:34,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:58:34,347 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-15 23:58:34,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:58:34,347 INFO L225 Difference]: With dead ends: 41 [2019-11-15 23:58:34,348 INFO L226 Difference]: Without dead ends: 36 [2019-11-15 23:58:34,348 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 [2019-11-15 23:58:34,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-15 23:58:34,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2019-11-15 23:58:34,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 23:58:34,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-15 23:58:34,354 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-11-15 23:58:34,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:58:34,354 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-15 23:58:34,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:58:34,355 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-15 23:58:34,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 23:58:34,355 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:58:34,356 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:58:34,356 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:58:34,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:58:34,356 INFO L82 PathProgramCache]: Analyzing trace with hash -555778251, now seen corresponding path program 1 times [2019-11-15 23:58:34,357 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:58:34,357 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021375771] [2019-11-15 23:58:34,357 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:58:34,357 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:58:34,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:58:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:58:34,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:34,399 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021375771] [2019-11-15 23:58:34,400 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:58:34,400 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:58:34,400 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392766877] [2019-11-15 23:58:34,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:58:34,400 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:58:34,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:58:34,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:58:34,401 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2019-11-15 23:58:34,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:58:34,445 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-11-15 23:58:34,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:58:34,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-15 23:58:34,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:58:34,447 INFO L225 Difference]: With dead ends: 43 [2019-11-15 23:58:34,447 INFO L226 Difference]: Without dead ends: 38 [2019-11-15 23:58:34,447 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 [2019-11-15 23:58:34,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-15 23:58:34,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2019-11-15 23:58:34,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 23:58:34,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-15 23:58:34,452 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2019-11-15 23:58:34,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:58:34,452 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-15 23:58:34,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:58:34,453 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-15 23:58:34,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 23:58:34,453 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:58:34,453 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:58:34,454 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:58:34,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:58:34,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-11-15 23:58:34,455 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:58:34,455 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119724] [2019-11-15 23:58:34,455 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:58:34,455 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:58:34,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:58:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:58:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:58:34,524 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:58:34,524 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:58:34,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:58:34 BoogieIcfgContainer [2019-11-15 23:58:34,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:58:34,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:58:34,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:58:34,550 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:58:34,551 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:58:33" (3/4) ... [2019-11-15 23:58:34,554 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:58:34,554 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:58:34,556 INFO L168 Benchmark]: Toolchain (without parser) took 1506.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -113.6 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:58:34,557 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:58:34,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:58:34,558 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.74 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:58:34,559 INFO L168 Benchmark]: Boogie Preprocessor took 29.01 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. [2019-11-15 23:58:34,560 INFO L168 Benchmark]: RCFGBuilder took 464.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:58:34,560 INFO L168 Benchmark]: TraceAbstraction took 682.70 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:58:34,561 INFO L168 Benchmark]: Witness Printer took 4.47 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. [2019-11-15 23:58:34,563 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 283.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.74 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.01 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 464.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 682.70 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.47 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, 0.0s SatisfiabilityAnalysisTime, 0.1s 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 [2019-11-15 23:58:36,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:58:36,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:58:36,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:58:36,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:58:36,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:58:36,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:58:36,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:58:36,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:58:36,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:58:36,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:58:36,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:58:36,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:58:36,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:58:36,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:58:36,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:58:36,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:58:36,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:58:36,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:58:36,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:58:36,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:58:36,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:58:36,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:58:36,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:58:36,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:58:36,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:58:36,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:58:36,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:58:36,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:58:36,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:58:36,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:58:36,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:58:36,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:58:36,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:58:36,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:58:36,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:58:36,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:58:36,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:58:36,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:58:36,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:58:36,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:58:36,765 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:58:36,784 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:58:36,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:58:36,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:58:36,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:58:36,786 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:58:36,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:58:36,787 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:58:36,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:58:36,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:58:36,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:58:36,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:58:36,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:58:36,789 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:58:36,789 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:58:36,789 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:58:36,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:58:36,790 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:58:36,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:58:36,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:58:36,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:58:36,791 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:58:36,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:58:36,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:58:36,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:58:36,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:58:36,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:58:36,792 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:58:36,792 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:58:36,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:58:36,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:58:36,793 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer 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 -> Automizer 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 [2019-11-15 23:58:36,833 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:58:36,842 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:58:36,845 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:58:36,848 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:58:36,851 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:58:36,855 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c [2019-11-15 23:58:36,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/data/5d9cd0fbd/1cbbf14b16434579b1c7cd40182b5a47/FLAGa72f03737 [2019-11-15 23:58:37,341 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:58:37,342 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/sv-benchmarks/c/float-newlib/double_req_bl_1250.c [2019-11-15 23:58:37,349 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/data/5d9cd0fbd/1cbbf14b16434579b1c7cd40182b5a47/FLAGa72f03737 [2019-11-15 23:58:37,362 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/data/5d9cd0fbd/1cbbf14b16434579b1c7cd40182b5a47 [2019-11-15 23:58:37,364 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:58:37,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:58:37,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:58:37,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:58:37,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:58:37,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:58:37" (1/1) ... [2019-11-15 23:58:37,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d2f6680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:37, skipping insertion in model container [2019-11-15 23:58:37,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:58:37" (1/1) ... [2019-11-15 23:58:37,378 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:58:37,392 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:58:37,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:58:37,564 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:58:37,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:58:37,671 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:58:37,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:37 WrapperNode [2019-11-15 23:58:37,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:58:37,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:58:37,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:58:37,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:58:37,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:37" (1/1) ... [2019-11-15 23:58:37,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:37" (1/1) ... [2019-11-15 23:58:37,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:58:37,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:58:37,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:58:37,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:58:37,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:37" (1/1) ... [2019-11-15 23:58:37,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:37" (1/1) ... [2019-11-15 23:58:37,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:37" (1/1) ... [2019-11-15 23:58:37,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:37" (1/1) ... [2019-11-15 23:58:37,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:37" (1/1) ... [2019-11-15 23:58:37,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:37" (1/1) ... [2019-11-15 23:58:37,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:37" (1/1) ... [2019-11-15 23:58:37,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:58:37,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:58:37,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:58:37,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:58:37,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/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 [2019-11-15 23:58:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 23:58:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:58:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 23:58:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:58:37,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:58:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:58:38,186 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:58:38,186 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 23:58:38,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:58:38 BoogieIcfgContainer [2019-11-15 23:58:38,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:58:38,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:58:38,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:58:38,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:58:38,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:58:37" (1/3) ... [2019-11-15 23:58:38,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359039b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:58:38, skipping insertion in model container [2019-11-15 23:58:38,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:58:37" (2/3) ... [2019-11-15 23:58:38,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359039b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:58:38, skipping insertion in model container [2019-11-15 23:58:38,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:58:38" (3/3) ... [2019-11-15 23:58:38,195 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1250.c [2019-11-15 23:58:38,204 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:58:38,210 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:58:38,217 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:58:38,235 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:58:38,235 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:58:38,235 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:58:38,235 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:58:38,235 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:58:38,235 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:58:38,235 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:58:38,236 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:58:38,246 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-15 23:58:38,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:58:38,252 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:58:38,253 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:58:38,254 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:58:38,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:58:38,258 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-11-15 23:58:38,264 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:58:38,265 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571817929] [2019-11-15 23:58:38,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/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 [2019-11-15 23:58:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:58:38,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 23:58:38,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:58:38,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:38,361 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:58:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:38,366 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571817929] [2019-11-15 23:58:38,367 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:58:38,367 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 23:58:38,367 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910481458] [2019-11-15 23:58:38,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:58:38,371 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:58:38,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:58:38,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:58:38,386 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-15 23:58:38,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:58:38,401 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-11-15 23:58:38,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:58:38,402 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 23:58:38,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:58:38,410 INFO L225 Difference]: With dead ends: 54 [2019-11-15 23:58:38,410 INFO L226 Difference]: Without dead ends: 25 [2019-11-15 23:58:38,413 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 [2019-11-15 23:58:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-15 23:58:38,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-15 23:58:38,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-15 23:58:38,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-11-15 23:58:38,444 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-11-15 23:58:38,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:58:38,444 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-11-15 23:58:38,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:58:38,445 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-11-15 23:58:38,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:58:38,445 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:58:38,446 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:58:38,658 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:58:38,658 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:58:38,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:58:38,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-11-15 23:58:38,661 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:58:38,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340236171] [2019-11-15 23:58:38,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/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 [2019-11-15 23:58:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:58:38,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 23:58:38,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:58:38,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:38,763 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:58:38,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:38,785 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340236171] [2019-11-15 23:58:38,785 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:58:38,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 23:58:38,785 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227149242] [2019-11-15 23:58:38,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:58:38,787 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:58:38,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:58:38,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:58:38,788 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 6 states. [2019-11-15 23:58:38,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:58:38,920 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2019-11-15 23:58:38,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:58:38,922 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-15 23:58:38,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:58:38,923 INFO L225 Difference]: With dead ends: 52 [2019-11-15 23:58:38,923 INFO L226 Difference]: Without dead ends: 47 [2019-11-15 23:58:38,924 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 [2019-11-15 23:58:38,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-15 23:58:38,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-11-15 23:58:38,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 23:58:38,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-15 23:58:38,934 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-11-15 23:58:38,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:58:38,934 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-15 23:58:38,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:58:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-15 23:58:38,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 23:58:38,937 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:58:38,937 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:58:39,150 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 23:58:39,152 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:58:39,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:58:39,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-11-15 23:58:39,154 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:58:39,155 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049188990] [2019-11-15 23:58:39,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/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 [2019-11-15 23:58:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:58:39,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 23:58:39,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:58:39,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:39,300 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:58:39,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:39,335 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049188990] [2019-11-15 23:58:39,335 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:58:39,336 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-15 23:58:39,336 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288399536] [2019-11-15 23:58:39,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:58:39,337 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:58:39,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:58:39,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:58:39,338 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 8 states. [2019-11-15 23:58:39,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:58:39,481 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2019-11-15 23:58:39,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:58:39,482 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-15 23:58:39,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:58:39,483 INFO L225 Difference]: With dead ends: 36 [2019-11-15 23:58:39,483 INFO L226 Difference]: Without dead ends: 27 [2019-11-15 23:58:39,484 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 [2019-11-15 23:58:39,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-15 23:58:39,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2019-11-15 23:58:39,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-15 23:58:39,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2019-11-15 23:58:39,489 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 14 [2019-11-15 23:58:39,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:58:39,490 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2019-11-15 23:58:39,490 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:58:39,490 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2019-11-15 23:58:39,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 23:58:39,491 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:58:39,492 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:58:39,710 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 23:58:39,710 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:58:39,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:58:39,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1012428811, now seen corresponding path program 1 times [2019-11-15 23:58:39,711 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:58:39,711 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446411013] [2019-11-15 23:58:39,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/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 [2019-11-15 23:58:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:58:39,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 23:58:39,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:58:39,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:39,846 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:58:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:39,866 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446411013] [2019-11-15 23:58:39,866 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:58:39,866 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 23:58:39,866 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083013935] [2019-11-15 23:58:39,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:58:39,867 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:58:39,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:58:39,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:58:39,867 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 6 states. [2019-11-15 23:58:39,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:58:39,971 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2019-11-15 23:58:39,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:58:39,972 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-15 23:58:39,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:58:39,973 INFO L225 Difference]: With dead ends: 52 [2019-11-15 23:58:39,974 INFO L226 Difference]: Without dead ends: 47 [2019-11-15 23:58:39,974 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 [2019-11-15 23:58:39,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-15 23:58:39,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-11-15 23:58:39,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 23:58:39,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2019-11-15 23:58:39,984 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 16 [2019-11-15 23:58:39,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:58:39,984 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-11-15 23:58:39,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:58:39,985 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2019-11-15 23:58:39,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 23:58:39,986 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:58:39,987 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:58:40,187 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 23:58:40,188 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:58:40,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:58:40,188 INFO L82 PathProgramCache]: Analyzing trace with hash -356841937, now seen corresponding path program 1 times [2019-11-15 23:58:40,189 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:58:40,189 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068713429] [2019-11-15 23:58:40,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/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 [2019-11-15 23:58:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:58:40,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 23:58:40,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:58:40,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:40,361 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:58:40,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:40,412 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068713429] [2019-11-15 23:58:40,413 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:58:40,413 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-11-15 23:58:40,413 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409185223] [2019-11-15 23:58:40,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 23:58:40,414 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:58:40,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 23:58:40,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:58:40,414 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 9 states. [2019-11-15 23:58:40,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:58:40,585 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2019-11-15 23:58:40,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:58:40,586 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-11-15 23:58:40,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:58:40,586 INFO L225 Difference]: With dead ends: 32 [2019-11-15 23:58:40,586 INFO L226 Difference]: Without dead ends: 23 [2019-11-15 23:58:40,587 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 [2019-11-15 23:58:40,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-15 23:58:40,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-15 23:58:40,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-15 23:58:40,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-15 23:58:40,591 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 18 [2019-11-15 23:58:40,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:58:40,591 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-15 23:58:40,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 23:58:40,591 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-15 23:58:40,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 23:58:40,592 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:58:40,592 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:58:40,793 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-15 23:58:40,793 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:58:40,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:58:40,793 INFO L82 PathProgramCache]: Analyzing trace with hash -208376157, now seen corresponding path program 1 times [2019-11-15 23:58:40,794 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:58:40,794 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826034132] [2019-11-15 23:58:40,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/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 [2019-11-15 23:58:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:58:40,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 23:58:40,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:58:40,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:40,947 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:58:40,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:58:40,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826034132] [2019-11-15 23:58:40,986 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:58:40,986 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-15 23:58:40,986 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075481045] [2019-11-15 23:58:40,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:58:40,987 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:58:40,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:58:40,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:58:40,987 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 8 states. [2019-11-15 23:58:41,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:58:41,068 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2019-11-15 23:58:41,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:58:41,068 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-11-15 23:58:41,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:58:41,069 INFO L225 Difference]: With dead ends: 23 [2019-11-15 23:58:41,069 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:58:41,070 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 [2019-11-15 23:58:41,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:58:41,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:58:41,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:58:41,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:58:41,070 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-11-15 23:58:41,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:58:41,071 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:58:41,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:58:41,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:58:41,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:58:41,278 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-15 23:58:41,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 23:58:41,491 INFO L443 ceAbstractionStarter]: For program point L60(line 60) no Hoare annotation was computed. [2019-11-15 23:58:41,491 INFO L443 ceAbstractionStarter]: For program point L60-2(line 60) no Hoare annotation was computed. [2019-11-15 23:58:41,491 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))) [2019-11-15 23:58:41,491 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 23:58:41,492 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 23:58:41,492 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 23:58:41,492 INFO L443 ceAbstractionStarter]: For program point L57(lines 57 58) no Hoare annotation was computed. [2019-11-15 23:58:41,492 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|))) [2019-11-15 23:58:41,492 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 23:58:41,492 INFO L443 ceAbstractionStarter]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2019-11-15 23:58:41,493 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))) [2019-11-15 23:58:41,493 INFO L443 ceAbstractionStarter]: For program point L29-3(lines 26 51) no Hoare annotation was computed. [2019-11-15 23:58:41,493 INFO L443 ceAbstractionStarter]: For program point L29-5(lines 29 34) no Hoare annotation was computed. [2019-11-15 23:58:41,493 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))) [2019-11-15 23:58:41,493 INFO L443 ceAbstractionStarter]: For program point L29-7(lines 26 51) no Hoare annotation was computed. [2019-11-15 23:58:41,493 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))) [2019-11-15 23:58:41,494 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)))) [2019-11-15 23:58:41,494 INFO L443 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2019-11-15 23:58:41,494 INFO L443 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2019-11-15 23:58:41,494 INFO L446 ceAbstractionStarter]: At program point L75(lines 63 76) the Hoare annotation is: true [2019-11-15 23:58:41,494 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 50) no Hoare annotation was computed. [2019-11-15 23:58:41,494 INFO L443 ceAbstractionStarter]: For program point L42-1(lines 42 50) no Hoare annotation was computed. [2019-11-15 23:58:41,494 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 74) no Hoare annotation was computed. [2019-11-15 23:58:41,495 INFO L443 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-11-15 23:58:41,495 INFO L443 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2019-11-15 23:58:41,495 INFO L443 ceAbstractionStarter]: For program point L39(lines 39 50) no Hoare annotation was computed. [2019-11-15 23:58:41,495 INFO L443 ceAbstractionStarter]: For program point L39-1(lines 39 50) no Hoare annotation was computed. [2019-11-15 23:58:41,495 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2019-11-15 23:58:41,502 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,503 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,509 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,509 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,510 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,510 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,512 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,512 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,512 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,515 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,515 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:58:41 BoogieIcfgContainer [2019-11-15 23:58:41,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:58:41,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:58:41,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:58:41,519 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:58:41,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:58:38" (3/4) ... [2019-11-15 23:58:41,524 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:58:41,543 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-15 23:58:41,544 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-15 23:58:41,545 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 23:58:41,565 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()) [2019-11-15 23:58:41,565 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 [2019-11-15 23:58:41,566 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())) [2019-11-15 23:58:41,596 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9b6a0f6d-8a65-4598-ae35-83e4fec9794f/bin/uautomizer/witness.graphml [2019-11-15 23:58:41,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:58:41,598 INFO L168 Benchmark]: Toolchain (without parser) took 4232.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 951.0 MB in the beginning and 944.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 181.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:58:41,599 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:58:41,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -220.0 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:58:41,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:58:41,600 INFO L168 Benchmark]: Boogie Preprocessor took 32.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:58:41,601 INFO L168 Benchmark]: RCFGBuilder took 442.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:58:41,601 INFO L168 Benchmark]: TraceAbstraction took 3329.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.3 MB in the end (delta: 194.3 MB). Peak memory consumption was 194.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:58:41,601 INFO L168 Benchmark]: Witness Printer took 78.06 ms. Allocated memory is still 1.2 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:58:41,613 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -220.0 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 442.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3329.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.3 MB in the end (delta: 194.3 MB). Peak memory consumption was 194.3 MB. Max. memory is 11.5 GB. * Witness Printer took 78.06 ms. Allocated memory is still 1.2 GB. Free memory is still 944.3 MB. There was no memory consumed. 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 [2019-11-15 23:58:41,626 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,626 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,627 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,627 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 [2019-11-15 23:58:41,628 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,628 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,628 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,628 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 [2019-11-15 23:58:41,629 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,629 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,629 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,630 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,630 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,630 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 [2019-11-15 23:58:41,632 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,632 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,632 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,633 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 [2019-11-15 23:58:41,633 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,633 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,634 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,638 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 [2019-11-15 23:58:41,638 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,639 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,639 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:58:41,639 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: 3.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 182 SDtfs, 106 SDslu, 504 SDs, 0 SdLazy, 131 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s 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, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s 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...