./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.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_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/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 14218179970cdda4c2f749c75b7f78aa74dcc86b ............................................................................................................................................................................................................................................................................................................ 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_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/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 14218179970cdda4c2f749c75b7f78aa74dcc86b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:09:12,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:09:12,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:09:12,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:09:12,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:09:12,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:09:12,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:09:12,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:09:12,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:09:12,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:09:12,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:09:12,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:09:12,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:09:12,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:09:12,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:09:12,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:09:12,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:09:12,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:09:12,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:09:12,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:09:12,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:09:12,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:09:12,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:09:12,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:09:12,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:09:12,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:09:12,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:09:12,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:09:12,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:09:12,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:09:12,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:09:12,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:09:12,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:09:12,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:09:12,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:09:12,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:09:12,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:09:12,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:09:12,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:09:12,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:09:12,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:09:12,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:09:12,685 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:09:12,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:09:12,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:09:12,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:09:12,687 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:09:12,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:09:12,687 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:09:12,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:09:12,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:09:12,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:09:12,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:09:12,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:09:12,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:09:12,689 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:09:12,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:09:12,690 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:09:12,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:09:12,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:09:12,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:09:12,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:09:12,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:09:12,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:09:12,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:09:12,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:09:12,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:09:12,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:09:12,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:09:12,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:09:12,692 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_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/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 -> 14218179970cdda4c2f749c75b7f78aa74dcc86b [2019-11-15 23:09:12,735 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:09:12,749 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:09:12,753 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:09:12,754 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:09:12,755 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:09:12,755 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2019-11-15 23:09:12,825 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/data/05f88e7e2/9c6991a5fea54b89a39d44e604d14fef/FLAGc8e55b756 [2019-11-15 23:09:13,229 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:09:13,230 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2019-11-15 23:09:13,239 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/data/05f88e7e2/9c6991a5fea54b89a39d44e604d14fef/FLAGc8e55b756 [2019-11-15 23:09:13,250 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/data/05f88e7e2/9c6991a5fea54b89a39d44e604d14fef [2019-11-15 23:09:13,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:09:13,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:09:13,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:09:13,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:09:13,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:09:13,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:09:13" (1/1) ... [2019-11-15 23:09:13,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33407b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:13, skipping insertion in model container [2019-11-15 23:09:13,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:09:13" (1/1) ... [2019-11-15 23:09:13,268 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:09:13,292 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:09:13,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:09:13,526 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:09:13,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:09:13,581 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:09:13,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:13 WrapperNode [2019-11-15 23:09:13,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:09:13,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:09:13,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:09:13,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:09:13,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:13" (1/1) ... [2019-11-15 23:09:13,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:13" (1/1) ... [2019-11-15 23:09:13,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:09:13,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:09:13,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:09:13,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:09:13,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:13" (1/1) ... [2019-11-15 23:09:13,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:13" (1/1) ... [2019-11-15 23:09:13,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:13" (1/1) ... [2019-11-15 23:09:13,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:13" (1/1) ... [2019-11-15 23:09:13,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:13" (1/1) ... [2019-11-15 23:09:13,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:13" (1/1) ... [2019-11-15 23:09:13,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:13" (1/1) ... [2019-11-15 23:09:13,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:09:13,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:09:13,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:09:13,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:09:13,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/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 23:09:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:09:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:09:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 23:09:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 23:09:13,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:09:13,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:09:13,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:09:13,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-15 23:09:13,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:09:14,170 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:09:14,171 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-15 23:09:14,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:09:14 BoogieIcfgContainer [2019-11-15 23:09:14,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:09:14,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:09:14,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:09:14,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:09:14,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:09:13" (1/3) ... [2019-11-15 23:09:14,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c3d424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:09:14, skipping insertion in model container [2019-11-15 23:09:14,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:13" (2/3) ... [2019-11-15 23:09:14,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c3d424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:09:14, skipping insertion in model container [2019-11-15 23:09:14,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:09:14" (3/3) ... [2019-11-15 23:09:14,178 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2019-11-15 23:09:14,186 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:09:14,193 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:09:14,203 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:09:14,224 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:09:14,224 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:09:14,224 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:09:14,224 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:09:14,224 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:09:14,224 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:09:14,224 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:09:14,225 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:09:14,239 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-15 23:09:14,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 23:09:14,245 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:09:14,246 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:09:14,247 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:09:14,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:09:14,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2019-11-15 23:09:14,258 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:09:14,259 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343879039] [2019-11-15 23:09:14,259 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:09:14,259 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:09:14,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:09:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:09:14,363 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 23:09:14,363 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343879039] [2019-11-15 23:09:14,364 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:09:14,364 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:09:14,364 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429570860] [2019-11-15 23:09:14,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:09:14,367 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:09:14,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:09:14,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:09:14,378 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-15 23:09:14,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:09:14,396 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2019-11-15 23:09:14,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:09:14,398 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-15 23:09:14,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:09:14,406 INFO L225 Difference]: With dead ends: 72 [2019-11-15 23:09:14,406 INFO L226 Difference]: Without dead ends: 34 [2019-11-15 23:09:14,409 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 23:09:14,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-15 23:09:14,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-15 23:09:14,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-15 23:09:14,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2019-11-15 23:09:14,443 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2019-11-15 23:09:14,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:09:14,443 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-11-15 23:09:14,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:09:14,443 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2019-11-15 23:09:14,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:09:14,444 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:09:14,444 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:09:14,445 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:09:14,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:09:14,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2019-11-15 23:09:14,445 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:09:14,446 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251381480] [2019-11-15 23:09:14,446 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:09:14,446 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:09:14,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:09:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:09:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:09:14,563 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:09:14,564 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:09:14,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:09:14 BoogieIcfgContainer [2019-11-15 23:09:14,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:09:14,599 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:09:14,599 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:09:14,600 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:09:14,600 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:09:14" (3/4) ... [2019-11-15 23:09:14,603 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:09:14,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:09:14,608 INFO L168 Benchmark]: Toolchain (without parser) took 1353.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -94.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:09:14,609 INFO L168 Benchmark]: CDTParser took 0.14 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 23:09:14,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:09:14,612 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:09:14,612 INFO L168 Benchmark]: Boogie Preprocessor took 36.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:09:14,613 INFO L168 Benchmark]: RCFGBuilder took 504.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:09:14,614 INFO L168 Benchmark]: TraceAbstraction took 425.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:09:14,614 INFO L168 Benchmark]: Witness Printer took 6.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:09:14,622 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 327.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -161.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 504.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 425.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L116] float x = 0.0f / 0.0f; [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float res = __ieee754_expf(x); [L13] return x != x; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L120] COND TRUE !isnan_float(res) [L121] __VERIFIER_error() VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 23:09:16,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:09:16,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:09:16,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-15 23:09:16,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:09:16,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:09:16,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:09:16,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:09:16,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:09:16,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:09:16,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:09:16,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:09:16,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:09:16,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:09:16,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:09:16,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:09:16,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:09:16,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:09:16,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:09:16,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:09:16,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:09:16,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:09:16,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:09:16,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:09:16,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:09:16,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:09:16,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:09:16,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:09:16,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:09:16,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:09:16,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:09:16,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:09:16,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:09:16,823 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:09:16,836 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:09:16,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:09:16,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:09:16,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:09:16,838 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:09:16,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:09:16,839 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:09:16,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:09:16,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:09:16,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:09:16,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:09:16,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:09:16,840 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:09:16,840 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:09:16,841 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:09:16,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:09:16,841 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:09:16,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:09:16,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:09:16,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:09:16,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:09:16,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:09:16,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:09:16,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:09:16,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:09:16,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:09:16,843 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:09:16,844 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:09:16,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:09:16,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:09:16,844 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_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/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 -> 14218179970cdda4c2f749c75b7f78aa74dcc86b [2019-11-15 23:09:16,873 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:09:16,883 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:09:16,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:09:16,887 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:09:16,888 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:09:16,889 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2019-11-15 23:09:16,941 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/data/babed0f86/168e1c0828f04302b5bd9f2558f4c1df/FLAGc6268169e [2019-11-15 23:09:17,384 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:09:17,387 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2019-11-15 23:09:17,396 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/data/babed0f86/168e1c0828f04302b5bd9f2558f4c1df/FLAGc6268169e [2019-11-15 23:09:17,416 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/data/babed0f86/168e1c0828f04302b5bd9f2558f4c1df [2019-11-15 23:09:17,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:09:17,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:09:17,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:09:17,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:09:17,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:09:17,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:09:17" (1/1) ... [2019-11-15 23:09:17,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e253ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:17, skipping insertion in model container [2019-11-15 23:09:17,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:09:17" (1/1) ... [2019-11-15 23:09:17,441 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:09:17,473 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:09:17,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:09:17,730 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:09:17,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:09:17,883 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:09:17,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:17 WrapperNode [2019-11-15 23:09:17,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:09:17,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:09:17,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:09:17,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:09:17,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:17" (1/1) ... [2019-11-15 23:09:17,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:17" (1/1) ... [2019-11-15 23:09:17,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:09:17,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:09:17,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:09:17,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:09:17,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:17" (1/1) ... [2019-11-15 23:09:17,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:17" (1/1) ... [2019-11-15 23:09:17,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:17" (1/1) ... [2019-11-15 23:09:17,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:17" (1/1) ... [2019-11-15 23:09:17,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:17" (1/1) ... [2019-11-15 23:09:17,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:17" (1/1) ... [2019-11-15 23:09:17,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:17" (1/1) ... [2019-11-15 23:09:17,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:09:17,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:09:17,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:09:17,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:09:17,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/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 23:09:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-15 23:09:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:09:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 23:09:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 23:09:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:09:18,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:09:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 23:09:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 23:09:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:09:25,322 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:09:25,322 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-15 23:09:25,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:09:25 BoogieIcfgContainer [2019-11-15 23:09:25,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:09:25,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:09:25,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:09:25,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:09:25,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:09:17" (1/3) ... [2019-11-15 23:09:25,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ca1a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:09:25, skipping insertion in model container [2019-11-15 23:09:25,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:09:17" (2/3) ... [2019-11-15 23:09:25,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ca1a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:09:25, skipping insertion in model container [2019-11-15 23:09:25,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:09:25" (3/3) ... [2019-11-15 23:09:25,329 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2019-11-15 23:09:25,335 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:09:25,343 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:09:25,353 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:09:25,376 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:09:25,376 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:09:25,377 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:09:25,377 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:09:25,377 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:09:25,377 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:09:25,377 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:09:25,377 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:09:25,390 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-15 23:09:25,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 23:09:25,395 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:09:25,396 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:09:25,398 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:09:25,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:09:25,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2019-11-15 23:09:25,414 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:09:25,415 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283689928] [2019-11-15 23:09:25,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/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 23:09:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:09:25,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 23:09:25,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:09:25,587 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 23:09:25,588 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:09:25,593 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 23:09:25,594 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283689928] [2019-11-15 23:09:25,595 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:09:25,595 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 23:09:25,596 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872252858] [2019-11-15 23:09:25,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:09:25,600 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:09:25,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:09:25,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:09:25,616 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-15 23:09:25,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:09:25,640 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2019-11-15 23:09:25,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:09:25,641 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-15 23:09:25,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:09:25,652 INFO L225 Difference]: With dead ends: 72 [2019-11-15 23:09:25,652 INFO L226 Difference]: Without dead ends: 34 [2019-11-15 23:09:25,655 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 23:09:25,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-15 23:09:25,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-15 23:09:25,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-15 23:09:25,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2019-11-15 23:09:25,691 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2019-11-15 23:09:25,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:09:25,691 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-11-15 23:09:25,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:09:25,692 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2019-11-15 23:09:25,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:09:25,692 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:09:25,692 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:09:25,894 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:09:25,894 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:09:25,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:09:25,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2019-11-15 23:09:25,895 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:09:25,895 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45998312] [2019-11-15 23:09:25,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/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 23:09:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:09:26,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 23:09:26,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:09:26,080 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 23:09:26,080 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:09:26,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:09:26,207 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45998312] [2019-11-15 23:09:26,207 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:09:26,207 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-15 23:09:26,207 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670424479] [2019-11-15 23:09:26,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:09:26,209 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:09:26,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:09:26,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:09:26,210 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 8 states. [2019-11-15 23:09:41,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:09:41,038 INFO L93 Difference]: Finished difference Result 61 states and 71 transitions. [2019-11-15 23:09:41,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:09:41,039 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-11-15 23:09:41,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:09:41,040 INFO L225 Difference]: With dead ends: 61 [2019-11-15 23:09:41,040 INFO L226 Difference]: Without dead ends: 53 [2019-11-15 23:09:41,041 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:09:41,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-15 23:09:41,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 36. [2019-11-15 23:09:41,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-15 23:09:41,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2019-11-15 23:09:41,048 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 10 [2019-11-15 23:09:41,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:09:41,048 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2019-11-15 23:09:41,048 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:09:41,049 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2019-11-15 23:09:41,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 23:09:41,049 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:09:41,050 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:09:41,250 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 23:09:41,251 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:09:41,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:09:41,251 INFO L82 PathProgramCache]: Analyzing trace with hash 228797714, now seen corresponding path program 1 times [2019-11-15 23:09:41,251 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:09:41,252 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127259801] [2019-11-15 23:09:41,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/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 23:09:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:09:41,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 23:09:41,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:09:41,416 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 23:09:41,416 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:09:41,579 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 23:09:41,580 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127259801] [2019-11-15 23:09:41,580 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:09:41,580 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 10 [2019-11-15 23:09:41,580 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997385607] [2019-11-15 23:09:41,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 23:09:41,581 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:09:41,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 23:09:41,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:09:41,582 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 10 states. [2019-11-15 23:09:41,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:09:41,656 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2019-11-15 23:09:41,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:09:41,656 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-15 23:09:41,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:09:41,656 INFO L225 Difference]: With dead ends: 36 [2019-11-15 23:09:41,657 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:09:41,657 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:09:41,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:09:41,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:09:41,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:09:41,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:09:41,661 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-11-15 23:09:41,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:09:41,662 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:09:41,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 23:09:41,662 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:09:41,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:09:41,874 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 23:09:41,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 23:09:41,949 INFO L443 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2019-11-15 23:09:41,949 INFO L443 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2019-11-15 23:09:41,949 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2019-11-15 23:09:41,949 INFO L443 ceAbstractionStarter]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2019-11-15 23:09:41,949 INFO L443 ceAbstractionStarter]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2019-11-15 23:09:41,950 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 23:09:41,950 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 23:09:41,950 INFO L443 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2019-11-15 23:09:41,950 INFO L443 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2019-11-15 23:09:41,950 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-11-15 23:09:41,950 INFO L443 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2019-11-15 23:09:41,950 INFO L443 ceAbstractionStarter]: For program point L120(lines 120 123) no Hoare annotation was computed. [2019-11-15 23:09:41,951 INFO L439 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start___ieee754_expf_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start___ieee754_expf_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2019-11-15 23:09:41,951 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2019-11-15 23:09:41,951 INFO L443 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2019-11-15 23:09:41,951 INFO L443 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-11-15 23:09:41,952 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2019-11-15 23:09:41,952 INFO L443 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-15 23:09:41,952 INFO L439 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-15 23:09:41,952 INFO L443 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2019-11-15 23:09:41,952 INFO L443 ceAbstractionStarter]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2019-11-15 23:09:41,952 INFO L443 ceAbstractionStarter]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2019-11-15 23:09:41,952 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 23:09:41,953 INFO L443 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2019-11-15 23:09:41,953 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-11-15 23:09:41,953 INFO L439 ceAbstractionStarter]: At program point L107(lines 36 109) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start___ieee754_expf_~x .cse0) (= |ULTIMATE.start___ieee754_expf_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2019-11-15 23:09:41,953 INFO L443 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2019-11-15 23:09:41,953 INFO L439 ceAbstractionStarter]: At program point L41-2(lines 41 45) the Hoare annotation is: (= ULTIMATE.start___ieee754_expf_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-11-15 23:09:41,953 INFO L443 ceAbstractionStarter]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2019-11-15 23:09:41,953 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 23:09:41,954 INFO L443 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2019-11-15 23:09:41,954 INFO L446 ceAbstractionStarter]: At program point L125(lines 111 126) the Hoare annotation is: true [2019-11-15 23:09:41,954 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-11-15 23:09:41,954 INFO L443 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2019-11-15 23:09:41,954 INFO L443 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2019-11-15 23:09:41,954 INFO L443 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-11-15 23:09:41,954 INFO L439 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: false [2019-11-15 23:09:41,962 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,964 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,964 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,966 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,966 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,967 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,967 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,967 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:41,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:09:41 BoogieIcfgContainer [2019-11-15 23:09:41,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:09:41,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:09:41,973 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:09:41,973 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:09:41,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:09:25" (3/4) ... [2019-11-15 23:09:41,985 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:09:42,000 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-15 23:09:42,001 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-15 23:09:42,038 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-11-15 23:09:42,040 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-11-15 23:09:42,089 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a55fc2ed-c03e-4a5f-8f49-8314a91eab63/bin/uautomizer/witness.graphml [2019-11-15 23:09:42,090 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:09:42,091 INFO L168 Benchmark]: Toolchain (without parser) took 24668.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.5 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -59.5 MB). Peak memory consumption was 125.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:09:42,092 INFO L168 Benchmark]: CDTParser took 0.27 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 23:09:42,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 457.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.5 MB). Free memory was 952.3 MB in the beginning and 1.2 GB in the end (delta: -222.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:09:42,092 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.79 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 23:09:42,093 INFO L168 Benchmark]: Boogie Preprocessor took 40.66 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: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:09:42,093 INFO L168 Benchmark]: RCFGBuilder took 7347.82 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:09:42,094 INFO L168 Benchmark]: TraceAbstraction took 16648.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:09:42,094 INFO L168 Benchmark]: Witness Printer took 116.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:09:42,096 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 457.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.5 MB). Free memory was 952.3 MB in the beginning and 1.2 GB in the end (delta: -222.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.79 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. * Boogie Preprocessor took 40.66 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: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 7347.82 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16648.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 11.5 GB. * Witness Printer took 116.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-11-15 23:09:42,103 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,104 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,104 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,104 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,105 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,105 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,105 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,105 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 41]: Loop Invariant [2019-11-15 23:09:42,106 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,106 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 13]: Loop Invariant [2019-11-15 23:09:42,107 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,107 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,107 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,107 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,108 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,108 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,108 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:09:42,109 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 16.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 46 SDslu, 146 SDs, 0 SdLazy, 71 SolverSat, 2 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 50 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 1 QuantifiedInterpolants, 2577 SizeOfPredicates, 12 NumberOfNonLiveVariables, 187 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...