./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/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 922786d1b563f399f230d6bc6e72c1342da4d1a5 .................................................................................................................................................................................................................................................................................. 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_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/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 922786d1b563f399f230d6bc6e72c1342da4d1a5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:51:49,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:49,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:49,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:49,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:49,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:49,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:49,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:49,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:49,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:49,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:49,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:49,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:49,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:49,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:49,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:49,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:49,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:49,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:49,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:49,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:49,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:49,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:49,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:49,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:49,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:49,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:49,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:49,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:49,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:49,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:49,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:49,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:49,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:49,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:49,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:49,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:49,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:49,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:49,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:49,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:49,270 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:51:49,295 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:49,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:49,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:49,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:49,307 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:49,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:49,308 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:51:49,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:49,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:51:49,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:49,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:51:49,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:49,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:51:49,309 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:51:49,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:49,310 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:49,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:51:49,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:49,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:49,311 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:49,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:49,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:49,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:49,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:49,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:51:49,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:51:49,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:51:49,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:51:49,314 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_52782ea2-dd38-427f-b103-71861a496694/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 -> 922786d1b563f399f230d6bc6e72c1342da4d1a5 [2019-11-25 08:51:49,488 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:49,504 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:49,507 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:49,508 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:49,509 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:49,510 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-25 08:51:49,571 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/data/ea66f8904/648c73e1600b4b048b55fff6d643717e/FLAG18aa81d08 [2019-11-25 08:51:49,945 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:49,946 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-25 08:51:49,952 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/data/ea66f8904/648c73e1600b4b048b55fff6d643717e/FLAG18aa81d08 [2019-11-25 08:51:50,394 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/data/ea66f8904/648c73e1600b4b048b55fff6d643717e [2019-11-25 08:51:50,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:50,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:50,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:50,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:50,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:50,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:50" (1/1) ... [2019-11-25 08:51:50,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a518ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:50, skipping insertion in model container [2019-11-25 08:51:50,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:50" (1/1) ... [2019-11-25 08:51:50,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:50,443 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:50,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:50,698 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:50,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:50,741 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:50,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:50 WrapperNode [2019-11-25 08:51:50,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:50,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:50,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:50,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:50,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:50" (1/1) ... [2019-11-25 08:51:50,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:50" (1/1) ... [2019-11-25 08:51:50,783 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:50,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:50,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:50,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:50,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:50" (1/1) ... [2019-11-25 08:51:50,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:50" (1/1) ... [2019-11-25 08:51:50,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:50" (1/1) ... [2019-11-25 08:51:50,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:50" (1/1) ... [2019-11-25 08:51:50,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:50" (1/1) ... [2019-11-25 08:51:50,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:50" (1/1) ... [2019-11-25 08:51:50,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:50" (1/1) ... [2019-11-25 08:51:50,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:50,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:50,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:50,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:50,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/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 [2019-11-25 08:51:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-25 08:51:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:51:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-25 08:51:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:51:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:51,302 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:51,302 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-25 08:51:51,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:51 BoogieIcfgContainer [2019-11-25 08:51:51,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:51,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:51,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:51,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:51,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:50" (1/3) ... [2019-11-25 08:51:51,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55525304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:51, skipping insertion in model container [2019-11-25 08:51:51,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:50" (2/3) ... [2019-11-25 08:51:51,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55525304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:51, skipping insertion in model container [2019-11-25 08:51:51,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:51" (3/3) ... [2019-11-25 08:51:51,318 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2019-11-25 08:51:51,331 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:51,339 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:51:51,350 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:51:51,378 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:51,378 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:51:51,378 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:51,379 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:51,379 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:51,379 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:51,380 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:51,380 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:51,396 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-11-25 08:51:51,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:51:51,403 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:51,404 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:51,405 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:51,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:51,410 INFO L82 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2019-11-25 08:51:51,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:51,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432560084] [2019-11-25 08:51:51,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:51,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:51,539 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432560084] [2019-11-25 08:51:51,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:51,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:51:51,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919697578] [2019-11-25 08:51:51,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:51:51,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:51,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:51:51,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:51:51,561 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-11-25 08:51:51,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:51,584 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2019-11-25 08:51:51,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:51:51,586 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-25 08:51:51,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:51,596 INFO L225 Difference]: With dead ends: 46 [2019-11-25 08:51:51,597 INFO L226 Difference]: Without dead ends: 21 [2019-11-25 08:51:51,603 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:51:51,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-25 08:51:51,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-25 08:51:51,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-25 08:51:51,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-11-25 08:51:51,644 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-11-25 08:51:51,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:51,645 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-11-25 08:51:51,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:51:51,645 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-11-25 08:51:51,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-25 08:51:51,646 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:51,647 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:51,647 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:51,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:51,648 INFO L82 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2019-11-25 08:51:51,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:51,648 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522816385] [2019-11-25 08:51:51,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:51,764 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:51,767 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:51:51,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:51:51 BoogieIcfgContainer [2019-11-25 08:51:51,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:51:51,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:51,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:51,799 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:51,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:51" (3/4) ... [2019-11-25 08:51:51,803 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:51:51,803 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:51,805 INFO L168 Benchmark]: Toolchain (without parser) took 1405.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:51,806 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:51,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.0 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -238.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:51,808 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.32 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:51,808 INFO L168 Benchmark]: Boogie Preprocessor took 35.03 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. [2019-11-25 08:51:51,809 INFO L168 Benchmark]: RCFGBuilder took 484.89 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:51,810 INFO L168 Benchmark]: TraceAbstraction took 493.57 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:51,810 INFO L168 Benchmark]: Witness Printer took 5.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:51,814 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 339.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.0 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -238.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.32 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 484.89 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 493.57 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 74]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L68] double x = 0.0 / 0.0; [L18] int signbit; [L19] int msw; [L20] unsigned int lsw; [L21] int exponent_less_1023; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L28] signbit = msw & 0x80000000 [L29] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L30] COND FALSE !(exponent_less_1023 < 20) [L47] COND TRUE exponent_less_1023 > 51 [L48] COND TRUE exponent_less_1023 == 1024 [L49] return x + x; [L70] double res = trunc_double(x); [L15] return x != x; [L73] COND TRUE !isnan_double(res) [L74] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 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=24occurred 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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 0.1.24-6b5699a [2019-11-25 08:51:53,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:53,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:53,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:53,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:53,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:53,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:53,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:53,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:53,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:53,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:53,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:53,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:53,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:53,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:53,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:53,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:53,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:53,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:53,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:53,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:53,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:53,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:53,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:53,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:53,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:53,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:53,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:53,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:53,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:53,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:53,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:53,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:53,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:53,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:53,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:53,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:53,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:53,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:53,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:53,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:53,782 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:51:53,803 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:53,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:53,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:53,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:53,806 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:53,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:53,806 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:51:53,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:51:53,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:53,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:51:53,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:53,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:51:53,809 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:51:53,809 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:51:53,809 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:53,810 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:51:53,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:53,810 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:53,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:51:53,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:53,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:53,811 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:53,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:53,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:53,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:53,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:53,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:51:53,813 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:51:53,813 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:51:53,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:51:53,814 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:51:53,814 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_52782ea2-dd38-427f-b103-71861a496694/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 -> 922786d1b563f399f230d6bc6e72c1342da4d1a5 [2019-11-25 08:51:54,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:54,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:54,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:54,082 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:54,082 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:54,083 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-25 08:51:54,135 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/data/64c255baa/edc1f6f436c648cd961190a49ecc9d67/FLAG8441c5bb9 [2019-11-25 08:51:54,545 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:54,545 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-25 08:51:54,553 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/data/64c255baa/edc1f6f436c648cd961190a49ecc9d67/FLAG8441c5bb9 [2019-11-25 08:51:54,564 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/data/64c255baa/edc1f6f436c648cd961190a49ecc9d67 [2019-11-25 08:51:54,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:54,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:54,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:54,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:54,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:54,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:54" (1/1) ... [2019-11-25 08:51:54,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61677559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:54, skipping insertion in model container [2019-11-25 08:51:54,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:54" (1/1) ... [2019-11-25 08:51:54,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:54,607 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:54,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:54,767 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:54,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:54,820 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:54,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:54 WrapperNode [2019-11-25 08:51:54,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:54,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:54,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:54,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:54,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:54" (1/1) ... [2019-11-25 08:51:54,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:54" (1/1) ... [2019-11-25 08:51:54,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:54,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:54,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:54,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:54,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:54" (1/1) ... [2019-11-25 08:51:54,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:54" (1/1) ... [2019-11-25 08:51:54,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:54" (1/1) ... [2019-11-25 08:51:54,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:54" (1/1) ... [2019-11-25 08:51:54,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:54" (1/1) ... [2019-11-25 08:51:54,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:54" (1/1) ... [2019-11-25 08:51:54,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:54" (1/1) ... [2019-11-25 08:51:54,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:54,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:54,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:54,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:54,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/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 [2019-11-25 08:51:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-25 08:51:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-25 08:51:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:55,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:51:55,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:55,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:55,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:51:55,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:55,478 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:55,479 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-25 08:51:55,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:55 BoogieIcfgContainer [2019-11-25 08:51:55,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:55,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:55,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:55,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:55,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:54" (1/3) ... [2019-11-25 08:51:55,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f0ff82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:55, skipping insertion in model container [2019-11-25 08:51:55,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:54" (2/3) ... [2019-11-25 08:51:55,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f0ff82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:55, skipping insertion in model container [2019-11-25 08:51:55,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:55" (3/3) ... [2019-11-25 08:51:55,486 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2019-11-25 08:51:55,495 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:55,499 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:51:55,507 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:51:55,527 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:55,527 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:51:55,527 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:55,527 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:55,528 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:55,528 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:55,528 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:55,528 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:55,540 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-11-25 08:51:55,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:51:55,546 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:55,547 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:55,547 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:55,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:55,553 INFO L82 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2019-11-25 08:51:55,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:55,560 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106914105] [2019-11-25 08:51:55,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/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 [2019-11-25 08:51:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:55,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-25 08:51:55,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:55,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:55,711 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:55,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:55,715 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106914105] [2019-11-25 08:51:55,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:55,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:51:55,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046515565] [2019-11-25 08:51:55,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:51:55,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:55,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:51:55,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:51:55,736 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-11-25 08:51:55,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:55,752 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2019-11-25 08:51:55,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:51:55,753 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-25 08:51:55,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:55,761 INFO L225 Difference]: With dead ends: 46 [2019-11-25 08:51:55,761 INFO L226 Difference]: Without dead ends: 21 [2019-11-25 08:51:55,765 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:51:55,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-25 08:51:55,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-25 08:51:55,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-25 08:51:55,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-11-25 08:51:55,791 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-11-25 08:51:55,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:55,791 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-11-25 08:51:55,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:51:55,791 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-11-25 08:51:55,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-25 08:51:55,792 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:55,792 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:56,003 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 08:51:56,003 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:56,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:56,004 INFO L82 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2019-11-25 08:51:56,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:56,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590625056] [2019-11-25 08:51:56,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/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 [2019-11-25 08:51:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:56,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-25 08:51:56,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:56,276 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:57,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:57,046 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590625056] [2019-11-25 08:51:57,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:57,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-25 08:51:57,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370854766] [2019-11-25 08:51:57,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-25 08:51:57,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:57,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-25 08:51:57,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:51:57,049 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 10 states. [2019-11-25 08:51:57,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:57,645 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2019-11-25 08:51:57,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:51:57,646 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-25 08:51:57,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:57,647 INFO L225 Difference]: With dead ends: 27 [2019-11-25 08:51:57,647 INFO L226 Difference]: Without dead ends: 20 [2019-11-25 08:51:57,648 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:51:57,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-25 08:51:57,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-25 08:51:57,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-25 08:51:57,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-11-25 08:51:57,653 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2019-11-25 08:51:57,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:57,653 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-11-25 08:51:57,653 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-25 08:51:57,653 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-11-25 08:51:57,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-25 08:51:57,654 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:57,654 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:57,855 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-25 08:51:57,855 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:57,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:57,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1398618101, now seen corresponding path program 1 times [2019-11-25 08:51:57,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:57,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925458649] [2019-11-25 08:51:57,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/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 [2019-11-25 08:51:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:57,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-25 08:51:57,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:58,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:58,137 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:58,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:58,366 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925458649] [2019-11-25 08:51:58,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:58,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2019-11-25 08:51:58,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976435594] [2019-11-25 08:51:58,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-25 08:51:58,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:58,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-25 08:51:58,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:51:58,368 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 9 states. [2019-11-25 08:51:58,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:58,796 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-11-25 08:51:58,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:51:58,797 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-11-25 08:51:58,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:58,797 INFO L225 Difference]: With dead ends: 20 [2019-11-25 08:51:58,797 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:51:58,798 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:51:58,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:51:58,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:51:58,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:51:58,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:51:58,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-25 08:51:58,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:58,799 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:51:58,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-25 08:51:58,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:51:58,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:51:59,000 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-25 08:51:59,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:51:59,148 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 46) no Hoare annotation was computed. [2019-11-25 08:51:59,148 INFO L444 ceAbstractionStarter]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2019-11-25 08:51:59,149 INFO L440 ceAbstractionStarter]: At program point L52-2(lines 52 57) the Hoare annotation is: false [2019-11-25 08:51:59,149 INFO L444 ceAbstractionStarter]: For program point L52-3(lines 30 58) no Hoare annotation was computed. [2019-11-25 08:51:59,149 INFO L444 ceAbstractionStarter]: For program point L48(lines 48 50) no Hoare annotation was computed. [2019-11-25 08:51:59,149 INFO L440 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x) (= |ULTIMATE.start_trunc_double_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-11-25 08:51:59,149 INFO L444 ceAbstractionStarter]: For program point L73(lines 73 76) no Hoare annotation was computed. [2019-11-25 08:51:59,149 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:51:59,150 INFO L444 ceAbstractionStarter]: For program point L32-1(lines 32 37) no Hoare annotation was computed. [2019-11-25 08:51:59,150 INFO L440 ceAbstractionStarter]: At program point L32-2(lines 32 37) the Hoare annotation is: false [2019-11-25 08:51:59,150 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:51:59,150 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:51:59,150 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2019-11-25 08:51:59,150 INFO L447 ceAbstractionStarter]: At program point L78(lines 62 79) the Hoare annotation is: true [2019-11-25 08:51:59,150 INFO L444 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2019-11-25 08:51:59,151 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:51:59,151 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 58) no Hoare annotation was computed. [2019-11-25 08:51:59,151 INFO L440 ceAbstractionStarter]: At program point L59(lines 17 60) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x) (= |ULTIMATE.start_trunc_double_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-25 08:51:59,151 INFO L444 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2019-11-25 08:51:59,151 INFO L440 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x)) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-25 08:51:59,151 INFO L444 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2019-11-25 08:51:59,151 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 58) no Hoare annotation was computed. [2019-11-25 08:51:59,152 INFO L444 ceAbstractionStarter]: For program point L39-1(lines 39 45) no Hoare annotation was computed. [2019-11-25 08:51:59,152 INFO L440 ceAbstractionStarter]: At program point L39-2(lines 39 45) the Hoare annotation is: false [2019-11-25 08:51:59,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,163 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,163 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,167 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,167 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,172 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:51:59,173 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:51:59,175 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:51:59 BoogieIcfgContainer [2019-11-25 08:51:59,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:51:59,178 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:59,178 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:59,178 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:59,179 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:55" (3/4) ... [2019-11-25 08:51:59,182 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:51:59,193 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-25 08:51:59,194 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-25 08:51:59,194 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:51:59,216 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-25 08:51:59,217 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-25 08:51:59,217 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2019-11-25 08:51:59,243 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_52782ea2-dd38-427f-b103-71861a496694/bin/uautomizer/witness.graphml [2019-11-25 08:51:59,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:59,246 INFO L168 Benchmark]: Toolchain (without parser) took 4673.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 961.8 MB in the beginning and 1.0 GB in the end (delta: -48.4 MB). Peak memory consumption was 116.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:59,246 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:59,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.34 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 945.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:59,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -208.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:59,248 INFO L168 Benchmark]: Boogie Preprocessor took 31.70 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. [2019-11-25 08:51:59,248 INFO L168 Benchmark]: RCFGBuilder took 530.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:59,249 INFO L168 Benchmark]: TraceAbstraction took 3697.15 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: 110.4 MB). Peak memory consumption was 110.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:59,249 INFO L168 Benchmark]: Witness Printer took 66.05 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:59,251 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.34 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 945.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -208.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 530.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3697.15 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: 110.4 MB). Peak memory consumption was 110.4 MB. Max. memory is 11.5 GB. * Witness Printer took 66.05 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: 6.6 MB). Peak memory consumption was 6.6 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 74]: 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: 15]: Loop Invariant [2019-11-25 08:51:59,261 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,261 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,261 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,262 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,262 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,264 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2019-11-25 08:51:59,265 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,265 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,265 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,266 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,266 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,266 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,268 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,268 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2019-11-25 08:51:59,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:51:59,269 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:59,270 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:51:59,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:59,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Result: SAFE, OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 48 SDtfs, 49 SDslu, 112 SDs, 0 SdLazy, 57 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 62 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 68 ConstructedInterpolants, 6 QuantifiedInterpolants, 4765 SizeOfPredicates, 17 NumberOfNonLiveVariables, 111 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...