./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/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_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/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 0.1.24-678e011 [2019-11-19 23:06:14,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:06:14,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:06:14,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:06:14,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:06:14,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:06:14,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:06:14,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:06:14,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:06:14,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:06:14,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:06:14,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:06:14,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:06:14,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:06:14,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:06:14,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:06:14,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:06:14,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:06:14,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:06:14,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:06:14,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:06:14,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:06:14,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:06:14,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:06:14,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:06:14,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:06:14,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:06:14,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:06:14,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:06:14,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:06:14,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:06:14,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:06:14,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:06:14,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:06:14,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:06:14,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:06:14,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:06:14,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:06:14,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:06:14,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:06:14,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:06:14,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 23:06:14,708 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:06:14,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:06:14,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:06:14,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:06:14,710 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:06:14,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:06:14,710 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:06:14,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:06:14,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:06:14,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:06:14,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:06:14,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:06:14,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:06:14,712 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:06:14,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:06:14,712 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:06:14,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:06:14,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:06:14,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:06:14,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:06:14,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:06:14,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:06:14,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:06:14,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:06:14,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:06:14,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:06:14,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:06:14,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:06:14,715 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_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/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 [2019-11-19 23:06:14,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:06:14,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:06:14,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:06:14,896 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:06:14,897 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:06:14,898 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-19 23:06:14,952 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/data/b997b4a59/ee34afc3e0b8422f92d4e5616fec3306/FLAGcca3a8aac [2019-11-19 23:06:15,340 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:06:15,341 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-19 23:06:15,347 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/data/b997b4a59/ee34afc3e0b8422f92d4e5616fec3306/FLAGcca3a8aac [2019-11-19 23:06:15,744 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/data/b997b4a59/ee34afc3e0b8422f92d4e5616fec3306 [2019-11-19 23:06:15,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:06:15,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:06:15,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:06:15,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:06:15,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:06:15,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:06:15" (1/1) ... [2019-11-19 23:06:15,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332ee523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:15, skipping insertion in model container [2019-11-19 23:06:15,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:06:15" (1/1) ... [2019-11-19 23:06:15,760 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:06:15,777 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:06:15,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:06:15,953 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:06:16,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:06:16,048 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:06:16,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:16 WrapperNode [2019-11-19 23:06:16,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:06:16,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:06:16,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:06:16,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:06:16,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:16" (1/1) ... [2019-11-19 23:06:16,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:16" (1/1) ... [2019-11-19 23:06:16,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:06:16,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:06:16,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:06:16,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:06:16,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:16" (1/1) ... [2019-11-19 23:06:16,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:16" (1/1) ... [2019-11-19 23:06:16,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:16" (1/1) ... [2019-11-19 23:06:16,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:16" (1/1) ... [2019-11-19 23:06:16,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:16" (1/1) ... [2019-11-19 23:06:16,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:16" (1/1) ... [2019-11-19 23:06:16,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:16" (1/1) ... [2019-11-19 23:06:16,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:06:16,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:06:16,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:06:16,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:06:16,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/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 [2019-11-19 23:06:16,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-19 23:06:16,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 23:06:16,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-19 23:06:16,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:06:16,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:06:16,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 23:06:16,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:06:16,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:06:16,515 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:06:16,515 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-19 23:06:16,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:06:16 BoogieIcfgContainer [2019-11-19 23:06:16,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:06:16,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:06:16,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:06:16,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:06:16,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:06:15" (1/3) ... [2019-11-19 23:06:16,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ad5659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:06:16, skipping insertion in model container [2019-11-19 23:06:16,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:16" (2/3) ... [2019-11-19 23:06:16,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ad5659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:06:16, skipping insertion in model container [2019-11-19 23:06:16,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:06:16" (3/3) ... [2019-11-19 23:06:16,524 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2019-11-19 23:06:16,533 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:06:16,540 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:06:16,550 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:06:16,569 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:06:16,570 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:06:16,570 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:06:16,570 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:06:16,570 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:06:16,571 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:06:16,571 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:06:16,571 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:06:16,584 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-11-19 23:06:16,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 23:06:16,590 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:06:16,591 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:06:16,592 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:06:16,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:06:16,596 INFO L82 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2019-11-19 23:06:16,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:06:16,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104687932] [2019-11-19 23:06:16,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:06:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:06:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:06:16,697 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104687932] [2019-11-19 23:06:16,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:06:16,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 23:06:16,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993208553] [2019-11-19 23:06:16,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 23:06:16,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:06:16,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 23:06:16,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 23:06:16,716 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-11-19 23:06:16,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:06:16,733 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2019-11-19 23:06:16,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 23:06:16,734 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-19 23:06:16,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:06:16,743 INFO L225 Difference]: With dead ends: 46 [2019-11-19 23:06:16,744 INFO L226 Difference]: Without dead ends: 21 [2019-11-19 23:06:16,746 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 [2019-11-19 23:06:16,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-19 23:06:16,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-19 23:06:16,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-19 23:06:16,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-11-19 23:06:16,774 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-11-19 23:06:16,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:06:16,775 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-11-19 23:06:16,775 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 23:06:16,775 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-11-19 23:06:16,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 23:06:16,776 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:06:16,776 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:06:16,776 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:06:16,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:06:16,776 INFO L82 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2019-11-19 23:06:16,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:06:16,777 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332156808] [2019-11-19 23:06:16,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:06:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:06:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:06:16,876 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:06:16,877 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 23:06:16,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:06:16 BoogieIcfgContainer [2019-11-19 23:06:16,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:06:16,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:06:16,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:06:16,900 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:06:16,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:06:16" (3/4) ... [2019-11-19 23:06:16,903 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 23:06:16,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:06:16,905 INFO L168 Benchmark]: Toolchain (without parser) took 1156.79 ms. Allocated memory is still 1.0 GB. Free memory was 944.6 MB in the beginning and 945.6 MB in the end (delta: -978.7 kB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:06:16,906 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:06:16,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.62 ms. Allocated memory is still 1.0 GB. Free memory was 944.6 MB in the beginning and 1.0 GB in the end (delta: -57.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:06:16,907 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.20 ms. Allocated memory is still 1.0 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:06:16,908 INFO L168 Benchmark]: Boogie Preprocessor took 27.44 ms. Allocated memory is still 1.0 GB. Free memory was 1.0 GB in the beginning and 996.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:06:16,908 INFO L168 Benchmark]: RCFGBuilder took 404.01 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 MB in the beginning and 973.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:06:16,909 INFO L168 Benchmark]: TraceAbstraction took 381.31 ms. Allocated memory is still 1.0 GB. Free memory was 973.8 MB in the beginning and 951.0 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-19 23:06:16,909 INFO L168 Benchmark]: Witness Printer took 4.31 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 945.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:06:16,913 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 300.62 ms. Allocated memory is still 1.0 GB. Free memory was 944.6 MB in the beginning and 1.0 GB in the end (delta: -57.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.20 ms. Allocated memory is still 1.0 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.44 ms. Allocated memory is still 1.0 GB. Free memory was 1.0 GB in the beginning and 996.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 404.01 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 MB in the beginning and 973.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 381.31 ms. Allocated memory is still 1.0 GB. Free memory was 973.8 MB in the beginning and 951.0 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.31 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 945.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. 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: 0.3s, 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 0.1.24-678e011 [2019-11-19 23:06:18,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:06:18,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:06:18,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:06:18,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:06:18,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:06:18,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:06:18,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:06:18,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:06:18,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:06:18,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:06:18,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:06:18,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:06:18,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:06:18,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:06:18,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:06:18,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:06:18,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:06:18,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:06:18,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:06:18,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:06:18,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:06:18,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:06:18,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:06:18,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:06:18,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:06:18,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:06:18,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:06:18,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:06:18,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:06:18,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:06:18,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:06:18,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:06:18,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:06:18,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:06:18,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:06:18,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:06:18,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:06:18,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:06:18,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:06:18,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:06:18,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 23:06:18,799 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:06:18,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:06:18,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:06:18,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:06:18,811 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:06:18,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:06:18,811 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:06:18,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:06:18,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:06:18,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:06:18,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:06:18,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:06:18,813 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 23:06:18,813 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 23:06:18,813 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:06:18,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:06:18,814 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:06:18,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:06:18,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:06:18,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:06:18,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:06:18,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:06:18,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:06:18,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:06:18,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:06:18,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:06:18,817 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 23:06:18,817 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 23:06:18,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:06:18,818 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 23:06:18,818 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_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/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 [2019-11-19 23:06:19,136 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:06:19,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:06:19,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:06:19,162 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:06:19,162 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:06:19,163 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-19 23:06:19,218 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/data/0dd29f8ad/7bd2ad0d39ff41f08beb5ee9bb39c2c5/FLAGf04e77f3d [2019-11-19 23:06:19,637 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:06:19,637 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-19 23:06:19,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/data/0dd29f8ad/7bd2ad0d39ff41f08beb5ee9bb39c2c5/FLAGf04e77f3d [2019-11-19 23:06:20,039 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/data/0dd29f8ad/7bd2ad0d39ff41f08beb5ee9bb39c2c5 [2019-11-19 23:06:20,042 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:06:20,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:06:20,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:06:20,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:06:20,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:06:20,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:06:20" (1/1) ... [2019-11-19 23:06:20,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f56e6d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:20, skipping insertion in model container [2019-11-19 23:06:20,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:06:20" (1/1) ... [2019-11-19 23:06:20,059 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:06:20,079 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:06:20,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:06:20,284 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:06:20,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:06:20,440 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:06:20,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:20 WrapperNode [2019-11-19 23:06:20,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:06:20,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:06:20,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:06:20,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:06:20,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:20" (1/1) ... [2019-11-19 23:06:20,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:20" (1/1) ... [2019-11-19 23:06:20,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:06:20,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:06:20,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:06:20,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:06:20,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:20" (1/1) ... [2019-11-19 23:06:20,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:20" (1/1) ... [2019-11-19 23:06:20,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:20" (1/1) ... [2019-11-19 23:06:20,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:20" (1/1) ... [2019-11-19 23:06:20,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:20" (1/1) ... [2019-11-19 23:06:20,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:20" (1/1) ... [2019-11-19 23:06:20,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:20" (1/1) ... [2019-11-19 23:06:20,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:06:20,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:06:20,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:06:20,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:06:20,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/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 [2019-11-19 23:06:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-19 23:06:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 23:06:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-19 23:06:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:06:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:06:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:06:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 23:06:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:06:21,030 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:06:21,030 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-19 23:06:21,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:06:21 BoogieIcfgContainer [2019-11-19 23:06:21,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:06:21,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:06:21,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:06:21,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:06:21,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:06:20" (1/3) ... [2019-11-19 23:06:21,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40204919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:06:21, skipping insertion in model container [2019-11-19 23:06:21,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:06:20" (2/3) ... [2019-11-19 23:06:21,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40204919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:06:21, skipping insertion in model container [2019-11-19 23:06:21,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:06:21" (3/3) ... [2019-11-19 23:06:21,039 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2019-11-19 23:06:21,047 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:06:21,051 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:06:21,059 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:06:21,077 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:06:21,077 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:06:21,077 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:06:21,077 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:06:21,077 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:06:21,077 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:06:21,077 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:06:21,077 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:06:21,091 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-11-19 23:06:21,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 23:06:21,096 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:06:21,096 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:06:21,097 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:06:21,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:06:21,101 INFO L82 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2019-11-19 23:06:21,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 23:06:21,109 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300113970] [2019-11-19 23:06:21,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/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 [2019-11-19 23:06:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:06:21,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-19 23:06:21,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:06:21,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:06:21,248 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 23:06:21,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:06:21,257 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300113970] [2019-11-19 23:06:21,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:06:21,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 23:06:21,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877441162] [2019-11-19 23:06:21,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 23:06:21,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 23:06:21,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 23:06:21,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 23:06:21,279 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-11-19 23:06:21,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:06:21,300 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2019-11-19 23:06:21,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 23:06:21,301 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-19 23:06:21,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:06:21,309 INFO L225 Difference]: With dead ends: 46 [2019-11-19 23:06:21,309 INFO L226 Difference]: Without dead ends: 21 [2019-11-19 23:06:21,312 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 [2019-11-19 23:06:21,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-19 23:06:21,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-19 23:06:21,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-19 23:06:21,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-11-19 23:06:21,338 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-11-19 23:06:21,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:06:21,338 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-11-19 23:06:21,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 23:06:21,339 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-11-19 23:06:21,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 23:06:21,339 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:06:21,340 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:06:21,546 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 23:06:21,547 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:06:21,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:06:21,547 INFO L82 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2019-11-19 23:06:21,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 23:06:21,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373476469] [2019-11-19 23:06:21,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/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 [2019-11-19 23:06:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:06:21,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 23:06:21,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:06:21,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:06:21,759 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 23:06:22,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:06:22,004 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373476469] [2019-11-19 23:06:22,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:06:22,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-19 23:06:22,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164809159] [2019-11-19 23:06:22,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 23:06:22,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 23:06:22,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 23:06:22,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-19 23:06:22,007 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 8 states. [2019-11-19 23:06:22,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:06:22,229 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2019-11-19 23:06:22,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 23:06:22,231 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-11-19 23:06:22,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:06:22,232 INFO L225 Difference]: With dead ends: 27 [2019-11-19 23:06:22,233 INFO L226 Difference]: Without dead ends: 20 [2019-11-19 23:06:22,234 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-19 23:06:22,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-19 23:06:22,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-19 23:06:22,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-19 23:06:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-11-19 23:06:22,240 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2019-11-19 23:06:22,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:06:22,241 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-11-19 23:06:22,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 23:06:22,241 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-11-19 23:06:22,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-19 23:06:22,243 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:06:22,246 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:06:22,447 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 23:06:22,448 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:06:22,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:06:22,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1398618101, now seen corresponding path program 1 times [2019-11-19 23:06:22,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 23:06:22,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018747783] [2019-11-19 23:06:22,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/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 [2019-11-19 23:06:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:06:22,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-19 23:06:22,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:06:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:06:22,620 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 23:06:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:06:22,762 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018747783] [2019-11-19 23:06:22,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:06:22,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2019-11-19 23:06:22,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412771128] [2019-11-19 23:06:22,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-19 23:06:22,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 23:06:22,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-19 23:06:22,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-19 23:06:22,764 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 9 states. [2019-11-19 23:06:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:06:22,961 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-11-19 23:06:22,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:06:22,962 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-11-19 23:06:22,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:06:22,963 INFO L225 Difference]: With dead ends: 20 [2019-11-19 23:06:22,963 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 23:06:22,964 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-19 23:06:22,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 23:06:22,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 23:06:22,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 23:06:22,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 23:06:22,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-19 23:06:22,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:06:22,965 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:06:22,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-19 23:06:22,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:06:22,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 23:06:23,174 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-19 23:06:23,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 23:06:23,252 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 46) no Hoare annotation was computed. [2019-11-19 23:06:23,253 INFO L444 ceAbstractionStarter]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2019-11-19 23:06:23,253 INFO L440 ceAbstractionStarter]: At program point L52-2(lines 52 57) the Hoare annotation is: false [2019-11-19 23:06:23,253 INFO L444 ceAbstractionStarter]: For program point L52-3(lines 30 58) no Hoare annotation was computed. [2019-11-19 23:06:23,253 INFO L444 ceAbstractionStarter]: For program point L48(lines 48 50) no Hoare annotation was computed. [2019-11-19 23:06:23,253 INFO L440 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_trunc_double_~x .cse0) (= |ULTIMATE.start_trunc_double_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|))) [2019-11-19 23:06:23,253 INFO L444 ceAbstractionStarter]: For program point L73(lines 73 76) no Hoare annotation was computed. [2019-11-19 23:06:23,253 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 23:06:23,254 INFO L444 ceAbstractionStarter]: For program point L32-1(lines 32 37) no Hoare annotation was computed. [2019-11-19 23:06:23,254 INFO L440 ceAbstractionStarter]: At program point L32-2(lines 32 37) the Hoare annotation is: false [2019-11-19 23:06:23,254 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 23:06:23,254 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 23:06:23,254 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2019-11-19 23:06:23,254 INFO L447 ceAbstractionStarter]: At program point L78(lines 62 79) the Hoare annotation is: true [2019-11-19 23:06:23,254 INFO L444 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2019-11-19 23:06:23,254 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 23:06:23,254 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 58) no Hoare annotation was computed. [2019-11-19 23:06:23,255 INFO L440 ceAbstractionStarter]: At program point L59(lines 17 60) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_trunc_double_~x .cse0) (= |ULTIMATE.start_trunc_double_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2019-11-19 23:06:23,255 INFO L444 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2019-11-19 23:06:23,255 INFO L440 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (= ULTIMATE.start_trunc_double_~x (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2019-11-19 23:06:23,255 INFO L444 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2019-11-19 23:06:23,255 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 58) no Hoare annotation was computed. [2019-11-19 23:06:23,255 INFO L444 ceAbstractionStarter]: For program point L39-1(lines 39 45) no Hoare annotation was computed. [2019-11-19 23:06:23,255 INFO L440 ceAbstractionStarter]: At program point L39-2(lines 39 45) the Hoare annotation is: false [2019-11-19 23:06:23,261 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,268 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,269 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,269 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:06:23 BoogieIcfgContainer [2019-11-19 23:06:23,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:06:23,275 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:06:23,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:06:23,275 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:06:23,276 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:06:21" (3/4) ... [2019-11-19 23:06:23,279 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 23:06:23,291 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-19 23:06:23,291 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-19 23:06:23,292 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 23:06:23,321 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-11-19 23:06:23,322 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && 1bv32 == \result [2019-11-19 23:06:23,368 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_97f3343f-215a-4e7c-9e35-e8080ec4f2ef/bin/uautomizer/witness.graphml [2019-11-19 23:06:23,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:06:23,370 INFO L168 Benchmark]: Toolchain (without parser) took 3326.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 960.4 MB in the beginning and 958.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 105.6 MB. Max. memory is 11.5 GB. [2019-11-19 23:06:23,371 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-11-19 23:06:23,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -138.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:06:23,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-19 23:06:23,372 INFO L168 Benchmark]: Boogie Preprocessor took 69.66 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:06:23,372 INFO L168 Benchmark]: RCFGBuilder took 458.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2019-11-19 23:06:23,373 INFO L168 Benchmark]: TraceAbstraction took 2242.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 965.0 MB in the end (delta: 99.6 MB). Peak memory consumption was 99.6 MB. Max. memory is 11.5 GB. [2019-11-19 23:06:23,373 INFO L168 Benchmark]: Witness Printer took 93.57 ms. Allocated memory is still 1.1 GB. Free memory was 965.0 MB in the beginning and 958.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-19 23:06:23,375 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 397.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -138.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.66 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 458.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2242.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 965.0 MB in the end (delta: 99.6 MB). Peak memory consumption was 99.6 MB. Max. memory is 11.5 GB. * Witness Printer took 93.57 ms. Allocated memory is still 1.1 GB. Free memory was 965.0 MB in the beginning and 958.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 [2019-11-19 23:06:23,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && 1bv32 == \result - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2019-11-19 23:06:23,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,387 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,387 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,387 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,388 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,388 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - 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 [2019-11-19 23:06:23,389 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 23:06:23,389 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 24 SDslu, 89 SDs, 0 SdLazy, 43 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s 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, 51 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 68 ConstructedInterpolants, 5 QuantifiedInterpolants, 3872 SizeOfPredicates, 14 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 20 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...