./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c -s /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 66cb741c1a4973eb036ada076f70b691f8ab4b25 ............................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c -s /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 66cb741c1a4973eb036ada076f70b691f8ab4b25 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:23:01,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:01,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:01,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:01,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:01,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:01,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:01,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:01,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:01,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:01,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:01,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:01,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:01,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:01,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:01,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:01,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:01,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:01,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:01,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:01,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:01,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:01,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:01,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:01,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:01,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:01,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:01,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:01,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:01,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:01,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:01,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:01,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:01,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:01,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:01,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:01,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:01,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:01,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:01,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:01,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:01,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:23:01,198 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:01,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:01,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:01,199 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:01,199 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:01,199 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:01,199 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:23:01,199 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:01,199 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:01,200 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:23:01,200 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:23:01,200 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:01,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:01,201 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:01,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:23:01,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:01,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:01,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:01,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:01,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:01,202 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:01,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:01,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:01,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:01,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:01,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:01,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:01,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:01,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:01,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:01,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:01,204 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:23:01,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:23:01,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:01,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:01,204 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66cb741c1a4973eb036ada076f70b691f8ab4b25 [2019-10-22 11:23:01,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:01,236 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:01,239 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:01,240 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:01,241 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:01,241 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2019-10-22 11:23:01,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/data/6976b2556/89b27ecb53204b18b1ad98adee9d6393/FLAGa7407a4b2 [2019-10-22 11:23:01,643 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:01,644 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2019-10-22 11:23:01,652 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/data/6976b2556/89b27ecb53204b18b1ad98adee9d6393/FLAGa7407a4b2 [2019-10-22 11:23:01,661 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/data/6976b2556/89b27ecb53204b18b1ad98adee9d6393 [2019-10-22 11:23:01,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:01,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:01,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:01,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:01,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:01,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:01" (1/1) ... [2019-10-22 11:23:01,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a2d28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:01, skipping insertion in model container [2019-10-22 11:23:01,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:01" (1/1) ... [2019-10-22 11:23:01,685 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:01,710 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:01,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:01,942 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:01,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:02,015 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:02,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:02 WrapperNode [2019-10-22 11:23:02,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:02,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:02,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:02,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:02,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:02" (1/1) ... [2019-10-22 11:23:02,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:02" (1/1) ... [2019-10-22 11:23:02,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:02,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:02,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:02,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:02,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:02" (1/1) ... [2019-10-22 11:23:02,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:02" (1/1) ... [2019-10-22 11:23:02,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:02" (1/1) ... [2019-10-22 11:23:02,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:02" (1/1) ... [2019-10-22 11:23:02,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:02" (1/1) ... [2019-10-22 11:23:02,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:02" (1/1) ... [2019-10-22 11:23:02,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:02" (1/1) ... [2019-10-22 11:23:02,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:02,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:02,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:02,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:02,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:23:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:23:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 11:23:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 11:23:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:02,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:23:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-10-22 11:23:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:23:02,656 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:02,656 INFO L284 CfgBuilder]: Removed 22 assume(true) statements. [2019-10-22 11:23:02,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:02 BoogieIcfgContainer [2019-10-22 11:23:02,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:02,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:02,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:02,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:02,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:01" (1/3) ... [2019-10-22 11:23:02,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dafc9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:02, skipping insertion in model container [2019-10-22 11:23:02,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:02" (2/3) ... [2019-10-22 11:23:02,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dafc9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:02, skipping insertion in model container [2019-10-22 11:23:02,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:02" (3/3) ... [2019-10-22 11:23:02,671 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2019-10-22 11:23:02,680 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:02,686 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:23:02,699 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:23:02,719 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:02,719 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:02,719 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:02,719 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:02,719 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:02,719 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:02,719 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:02,719 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:02,731 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-10-22 11:23:02,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:23:02,737 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:02,738 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:02,740 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:02,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:02,746 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2019-10-22 11:23:02,754 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:02,754 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215355562] [2019-10-22 11:23:02,755 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:02,755 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:02,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:02,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:02,870 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215355562] [2019-10-22 11:23:02,871 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:02,871 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:02,872 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830791797] [2019-10-22 11:23:02,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:23:02,877 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:02,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:23:02,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:02,892 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-10-22 11:23:02,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:02,913 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2019-10-22 11:23:02,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:23:02,915 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 11:23:02,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:02,924 INFO L225 Difference]: With dead ends: 108 [2019-10-22 11:23:02,925 INFO L226 Difference]: Without dead ends: 52 [2019-10-22 11:23:02,927 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:02,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-22 11:23:02,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-10-22 11:23:02,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-10-22 11:23:02,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2019-10-22 11:23:02,961 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2019-10-22 11:23:02,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:02,962 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2019-10-22 11:23:02,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:23:02,962 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2019-10-22 11:23:02,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:23:02,963 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:02,963 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:02,963 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:02,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:02,963 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2019-10-22 11:23:02,964 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:02,964 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495687330] [2019-10-22 11:23:02,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:02,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:02,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:23:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:23:03,099 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:23:03,099 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:23:03,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:23:03 BoogieIcfgContainer [2019-10-22 11:23:03,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:23:03,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:23:03,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:23:03,127 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:23:03,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:02" (3/4) ... [2019-10-22 11:23:03,131 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:23:03,131 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:23:03,133 INFO L168 Benchmark]: Toolchain (without parser) took 1468.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -118.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:03,134 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:03,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:03,135 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:03,135 INFO L168 Benchmark]: Boogie Preprocessor took 65.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:03,136 INFO L168 Benchmark]: RCFGBuilder took 510.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:03,137 INFO L168 Benchmark]: TraceAbstraction took 468.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:03,137 INFO L168 Benchmark]: Witness Printer took 4.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:03,140 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 350.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 510.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 468.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 176]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={1:0}] [L170] double x = 1.0 / 0.0; [L171] double y = __VERIFIER_nondet_double(); [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={1:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={1:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={1:0}] [L172] double res = fmod_double(x, y); [L16] return x != x; VAL [one_fmod=1, Zero_fmod={1:0}] [L175] COND TRUE !isnan_double(res) [L176] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 81 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=55occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:23:05,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:05,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:05,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:05,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:05,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:05,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:05,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:05,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:05,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:05,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:05,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:05,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:05,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:05,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:05,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:05,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:05,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:05,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:05,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:05,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:05,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:05,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:05,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:05,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:05,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:05,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:05,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:05,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:05,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:05,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:05,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:05,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:05,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:05,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:05,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:05,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:05,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:05,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:05,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:05,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:05,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:23:05,119 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:05,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:05,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:05,122 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:05,122 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:05,122 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:05,122 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:05,122 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:05,122 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:05,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:05,123 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:05,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:05,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:05,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:05,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:05,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:05,124 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:23:05,124 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:23:05,124 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:05,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:05,124 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:23:05,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:05,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:05,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:05,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:05,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:05,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:05,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:05,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:05,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:05,126 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:23:05,126 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:23:05,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:05,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:05,126 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66cb741c1a4973eb036ada076f70b691f8ab4b25 [2019-10-22 11:23:05,168 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:05,179 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:05,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:05,188 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:05,189 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:05,190 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2019-10-22 11:23:05,240 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/data/39ec332b0/54e0c11a61184db1a54009fe453f7ac0/FLAGc833c933c [2019-10-22 11:23:05,655 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:05,656 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2019-10-22 11:23:05,663 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/data/39ec332b0/54e0c11a61184db1a54009fe453f7ac0/FLAGc833c933c [2019-10-22 11:23:05,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/data/39ec332b0/54e0c11a61184db1a54009fe453f7ac0 [2019-10-22 11:23:05,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:05,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:05,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:05,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:05,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:05,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:05" (1/1) ... [2019-10-22 11:23:05,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fedafec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:05, skipping insertion in model container [2019-10-22 11:23:05,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:05" (1/1) ... [2019-10-22 11:23:05,700 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:05,724 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:05,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:05,899 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:06,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:06,048 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:06,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:06 WrapperNode [2019-10-22 11:23:06,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:06,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:06,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:06,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:06,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:06" (1/1) ... [2019-10-22 11:23:06,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:06" (1/1) ... [2019-10-22 11:23:06,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:06,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:06,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:06,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:06,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:06" (1/1) ... [2019-10-22 11:23:06,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:06" (1/1) ... [2019-10-22 11:23:06,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:06" (1/1) ... [2019-10-22 11:23:06,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:06" (1/1) ... [2019-10-22 11:23:06,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:06" (1/1) ... [2019-10-22 11:23:06,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:06" (1/1) ... [2019-10-22 11:23:06,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:06" (1/1) ... [2019-10-22 11:23:06,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:06,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:06,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:06,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:06,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-10-22 11:23:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-10-22 11:23:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:23:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-10-22 11:23:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 11:23:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:06,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:23:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:23:09,295 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:09,296 INFO L284 CfgBuilder]: Removed 22 assume(true) statements. [2019-10-22 11:23:09,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:09 BoogieIcfgContainer [2019-10-22 11:23:09,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:09,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:09,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:09,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:09,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:05" (1/3) ... [2019-10-22 11:23:09,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113eea8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:09, skipping insertion in model container [2019-10-22 11:23:09,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:06" (2/3) ... [2019-10-22 11:23:09,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113eea8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:09, skipping insertion in model container [2019-10-22 11:23:09,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:09" (3/3) ... [2019-10-22 11:23:09,306 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2019-10-22 11:23:09,315 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:09,325 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:23:09,335 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:23:09,361 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:09,361 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:09,362 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:09,362 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:09,362 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:09,362 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:09,363 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:09,363 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:09,378 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-10-22 11:23:09,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:23:09,385 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:09,386 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:09,388 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:09,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:09,394 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2019-10-22 11:23:09,403 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:09,404 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475200347] [2019-10-22 11:23:09,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-10-22 11:23:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:10,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:23:10,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:10,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:10,360 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:10,364 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475200347] [2019-10-22 11:23:10,365 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:10,365 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:23:10,365 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238666823] [2019-10-22 11:23:10,369 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:23:10,369 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:10,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:23:10,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:10,380 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-10-22 11:23:10,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:10,401 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2019-10-22 11:23:10,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:23:10,402 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 11:23:10,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:10,412 INFO L225 Difference]: With dead ends: 108 [2019-10-22 11:23:10,412 INFO L226 Difference]: Without dead ends: 52 [2019-10-22 11:23:10,414 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:10,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-22 11:23:10,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-10-22 11:23:10,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-10-22 11:23:10,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2019-10-22 11:23:10,443 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2019-10-22 11:23:10,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:10,444 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2019-10-22 11:23:10,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:23:10,444 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2019-10-22 11:23:10,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:23:10,445 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:10,445 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:10,645 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:23:10,646 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:10,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:10,646 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2019-10-22 11:23:10,647 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:10,647 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501100200] [2019-10-22 11:23:10,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-10-22 11:23:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:11,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 11:23:11,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:13,971 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53)) ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |c_ULTIMATE.start_fmod_double_#res|)) is different from false [2019-10-22 11:23:15,085 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:23:17,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:17,593 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:19,934 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from false [2019-10-22 11:23:22,274 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-10-22 11:23:23,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:23,074 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501100200] [2019-10-22 11:23:23,074 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:23,074 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-10-22 11:23:23,075 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900628682] [2019-10-22 11:23:23,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 11:23:23,076 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:23,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 11:23:23,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=42, Unknown=3, NotChecked=26, Total=90 [2019-10-22 11:23:23,077 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 10 states. [2019-10-22 11:23:26,199 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_fmod_double_~x (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53))) (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0))))) is different from true [2019-10-22 11:23:38,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:38,851 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2019-10-22 11:23:38,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:23:38,887 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-10-22 11:23:38,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:38,888 INFO L225 Difference]: With dead ends: 57 [2019-10-22 11:23:38,888 INFO L226 Difference]: Without dead ends: 52 [2019-10-22 11:23:38,889 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=34, Invalid=64, Unknown=4, NotChecked=54, Total=156 [2019-10-22 11:23:38,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-22 11:23:38,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-10-22 11:23:38,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-10-22 11:23:38,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2019-10-22 11:23:38,896 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2019-10-22 11:23:38,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:38,897 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2019-10-22 11:23:38,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 11:23:38,897 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2019-10-22 11:23:38,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:23:38,898 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:38,898 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:39,098 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 11:23:39,099 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:39,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:39,099 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2019-10-22 11:23:39,100 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:39,100 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463298759] [2019-10-22 11:23:39,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-10-22 11:23:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:39,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:23:39,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:39,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:39,283 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:39,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:39,349 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463298759] [2019-10-22 11:23:39,349 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:39,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2019-10-22 11:23:39,350 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808831841] [2019-10-22 11:23:39,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:23:39,351 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:39,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:23:39,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:23:39,351 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 7 states. [2019-10-22 11:23:39,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:39,420 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2019-10-22 11:23:39,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:23:39,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2019-10-22 11:23:39,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:39,421 INFO L225 Difference]: With dead ends: 52 [2019-10-22 11:23:39,421 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:23:39,422 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:23:39,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:23:39,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:23:39,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:23:39,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:23:39,423 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-10-22 11:23:39,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:39,423 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:23:39,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:23:39,423 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:23:39,423 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:23:39,624 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 11:23:39,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:23:45,506 WARN L191 SmtUtils]: Spent 5.82 s on a formula simplification. DAG size of input: 14 DAG size of output: 7 [2019-10-22 11:23:45,512 INFO L443 ceAbstractionStarter]: For program point L118(lines 118 119) no Hoare annotation was computed. [2019-10-22 11:23:45,513 INFO L443 ceAbstractionStarter]: For program point L118-2(lines 23 161) no Hoare annotation was computed. [2019-10-22 11:23:45,513 INFO L443 ceAbstractionStarter]: For program point L69-2(lines 69 70) no Hoare annotation was computed. [2019-10-22 11:23:45,513 INFO L439 ceAbstractionStarter]: At program point L69-3(lines 69 70) the Hoare annotation is: false [2019-10-22 11:23:45,513 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:23:45,513 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 157) no Hoare annotation was computed. [2019-10-22 11:23:45,514 INFO L443 ceAbstractionStarter]: For program point L152-1(lines 140 159) no Hoare annotation was computed. [2019-10-22 11:23:45,514 INFO L443 ceAbstractionStarter]: For program point L152-2(lines 152 157) no Hoare annotation was computed. [2019-10-22 11:23:45,514 INFO L443 ceAbstractionStarter]: For program point L53(lines 23 161) no Hoare annotation was computed. [2019-10-22 11:23:45,514 INFO L443 ceAbstractionStarter]: For program point L120-1(lines 23 161) no Hoare annotation was computed. [2019-10-22 11:23:45,514 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 60) no Hoare annotation was computed. [2019-10-22 11:23:45,514 INFO L443 ceAbstractionStarter]: For program point L104(lines 104 105) no Hoare annotation was computed. [2019-10-22 11:23:45,515 INFO L443 ceAbstractionStarter]: For program point L104-2(lines 101 115) no Hoare annotation was computed. [2019-10-22 11:23:45,515 INFO L443 ceAbstractionStarter]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2019-10-22 11:23:45,515 INFO L439 ceAbstractionStarter]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2019-10-22 11:23:45,515 INFO L439 ceAbstractionStarter]: At program point L106-1(lines 101 115) the Hoare annotation is: false [2019-10-22 11:23:45,515 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:23:45,516 INFO L443 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2019-10-22 11:23:45,516 INFO L443 ceAbstractionStarter]: For program point L91-2(lines 87 98) no Hoare annotation was computed. [2019-10-22 11:23:45,516 INFO L443 ceAbstractionStarter]: For program point L58-2(lines 58 59) no Hoare annotation was computed. [2019-10-22 11:23:45,516 INFO L439 ceAbstractionStarter]: At program point L58-3(lines 58 59) the Hoare annotation is: false [2019-10-22 11:23:45,516 INFO L443 ceAbstractionStarter]: For program point L175(lines 175 178) no Hoare annotation was computed. [2019-10-22 11:23:45,517 INFO L443 ceAbstractionStarter]: For program point L142(lines 142 151) no Hoare annotation was computed. [2019-10-22 11:23:45,517 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 45) no Hoare annotation was computed. [2019-10-22 11:23:45,517 INFO L443 ceAbstractionStarter]: For program point L27-1(lines 27 32) no Hoare annotation was computed. [2019-10-22 11:23:45,518 INFO L439 ceAbstractionStarter]: At program point L27-2(lines 27 32) the Hoare annotation is: (= ULTIMATE.start_fmod_double_~x (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53))) [2019-10-22 11:23:45,518 INFO L443 ceAbstractionStarter]: For program point L176(line 176) no Hoare annotation was computed. [2019-10-22 11:23:45,518 INFO L443 ceAbstractionStarter]: For program point L110(lines 110 111) no Hoare annotation was computed. [2019-10-22 11:23:45,518 INFO L439 ceAbstractionStarter]: At program point L160(lines 23 161) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) [2019-10-22 11:23:45,518 INFO L439 ceAbstractionStarter]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2019-10-22 11:23:45,518 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:23:45,519 INFO L443 ceAbstractionStarter]: For program point L127-3(lines 23 161) no Hoare annotation was computed. [2019-10-22 11:23:45,519 INFO L443 ceAbstractionStarter]: For program point L145(lines 145 151) no Hoare annotation was computed. [2019-10-22 11:23:45,519 INFO L443 ceAbstractionStarter]: For program point L79(lines 79 85) no Hoare annotation was computed. [2019-10-22 11:23:45,519 INFO L443 ceAbstractionStarter]: For program point L46(lines 46 51) no Hoare annotation was computed. [2019-10-22 11:23:45,519 INFO L443 ceAbstractionStarter]: For program point L79-2(lines 23 161) no Hoare annotation was computed. [2019-10-22 11:23:45,519 INFO L443 ceAbstractionStarter]: For program point L46-2(lines 23 161) no Hoare annotation was computed. [2019-10-22 11:23:45,519 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-10-22 11:23:45,520 INFO L443 ceAbstractionStarter]: For program point L64(lines 23 161) no Hoare annotation was computed. [2019-10-22 11:23:45,520 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2019-10-22 11:23:45,520 INFO L446 ceAbstractionStarter]: At program point L180(lines 163 181) the Hoare annotation is: true [2019-10-22 11:23:45,520 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2019-10-22 11:23:45,521 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:23:45,521 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-10-22 11:23:45,521 INFO L439 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-10-22 11:23:45,521 INFO L443 ceAbstractionStarter]: For program point L132(lines 132 159) no Hoare annotation was computed. [2019-10-22 11:23:45,522 INFO L443 ceAbstractionStarter]: For program point L33(lines 33 38) no Hoare annotation was computed. [2019-10-22 11:23:45,522 INFO L443 ceAbstractionStarter]: For program point L33-1(lines 23 161) no Hoare annotation was computed. [2019-10-22 11:23:45,522 INFO L443 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2019-10-22 11:23:45,522 INFO L443 ceAbstractionStarter]: For program point L33-2(lines 33 38) no Hoare annotation was computed. [2019-10-22 11:23:45,522 INFO L439 ceAbstractionStarter]: At program point L66-3(lines 66 67) the Hoare annotation is: false [2019-10-22 11:23:45,522 INFO L443 ceAbstractionStarter]: For program point L134-1(lines 134 139) no Hoare annotation was computed. [2019-10-22 11:23:45,523 INFO L443 ceAbstractionStarter]: For program point L101-1(lines 101 115) no Hoare annotation was computed. [2019-10-22 11:23:45,523 INFO L439 ceAbstractionStarter]: At program point L134-2(lines 134 139) the Hoare annotation is: false [2019-10-22 11:23:45,523 INFO L443 ceAbstractionStarter]: For program point L101-3(lines 101 115) no Hoare annotation was computed. [2019-10-22 11:23:45,539 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:23:45,544 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:23:45,545 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:23:45,547 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:23:45,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:23:45 BoogieIcfgContainer [2019-10-22 11:23:45,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:23:45,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:23:45,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:23:45,550 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:23:45,551 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:09" (3/4) ... [2019-10-22 11:23:45,556 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:23:45,572 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 11:23:45,574 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:23:45,618 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_dedcb17a-5594-4bb4-a47c-ffb01a84a56d/bin/utaipan/witness.graphml [2019-10-22 11:23:45,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:23:45,621 INFO L168 Benchmark]: Toolchain (without parser) took 39939.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 945.6 MB in the beginning and 1.0 GB in the end (delta: -61.7 MB). Peak memory consumption was 102.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:45,621 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:45,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -207.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:45,622 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:45,623 INFO L168 Benchmark]: Boogie Preprocessor took 40.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:45,623 INFO L168 Benchmark]: RCFGBuilder took 3143.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:45,624 INFO L168 Benchmark]: TraceAbstraction took 36252.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.8 MB). Peak memory consumption was 93.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:45,624 INFO L168 Benchmark]: Witness Printer took 68.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:45,627 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 367.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -207.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3143.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 36252.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.8 MB). Peak memory consumption was 93.8 MB. Max. memory is 11.5 GB. * Witness Printer took 68.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 176]: 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: 66]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) && 1bv32 == \result - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant [2019-10-22 11:23:45,634 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:23:45,634 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:23:45,635 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:23:45,635 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 36.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 15.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.8s, HoareTripleCheckerStatistics: 160 SDtfs, 10 SDslu, 468 SDs, 0 SdLazy, 33 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 23.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred 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, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 28 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 5.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 13 QuantifiedInterpolants, 4965 SizeOfPredicates, 16 NumberOfNonLiveVariables, 179 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...