./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/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 8c97aae237a76dbf85532dc8d030e712982e570a .................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/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 8c97aae237a76dbf85532dc8d030e712982e570a ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:11:26,892 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:11:26,893 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:11:26,901 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:11:26,901 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:11:26,902 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:11:26,902 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:11:26,903 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:11:26,904 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:11:26,905 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:11:26,906 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:11:26,906 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:11:26,907 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:11:26,907 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:11:26,908 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:11:26,909 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:11:26,909 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:11:26,911 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:11:26,912 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:11:26,913 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:11:26,914 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:11:26,915 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:11:26,916 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:11:26,917 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:11:26,917 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:11:26,918 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:11:26,918 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:11:26,919 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:11:26,919 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:11:26,920 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:11:26,920 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:11:26,921 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:11:26,921 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:11:26,921 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:11:26,922 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:11:26,922 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:11:26,923 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 13:11:26,932 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:11:26,933 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:11:26,933 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:11:26,933 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:11:26,934 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 13:11:26,934 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 13:11:26,934 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 13:11:26,934 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 13:11:26,934 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 13:11:26,934 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 13:11:26,934 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 13:11:26,935 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 13:11:26,935 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 13:11:26,935 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:11:26,935 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:11:26,936 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:11:26,936 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:11:26,936 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:11:26,936 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:11:26,936 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:11:26,936 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:11:26,936 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:11:26,937 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:11:26,937 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:11:26,937 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:11:26,937 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:11:26,937 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:11:26,937 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:11:26,938 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:11:26,938 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:11:26,938 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:11:26,938 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:11:26,938 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:11:26,938 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 13:11:26,938 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:11:26,939 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:11:26,939 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 13:11:26,939 INFO L133 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_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/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 -> 8c97aae237a76dbf85532dc8d030e712982e570a [2018-11-23 13:11:26,959 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:11:26,967 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:11:26,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:11:26,970 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:11:26,971 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:11:26,971 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-11-23 13:11:27,003 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/data/bb33bcd5e/e3fb21095fb94ae895030aedc22ab224/FLAG452a8896c [2018-11-23 13:11:27,297 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:11:27,297 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-11-23 13:11:27,301 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/data/bb33bcd5e/e3fb21095fb94ae895030aedc22ab224/FLAG452a8896c [2018-11-23 13:11:27,310 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/data/bb33bcd5e/e3fb21095fb94ae895030aedc22ab224 [2018-11-23 13:11:27,312 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:11:27,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:11:27,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:11:27,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:11:27,315 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:11:27,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:11:27" (1/1) ... [2018-11-23 13:11:27,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22877cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:27, skipping insertion in model container [2018-11-23 13:11:27,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:11:27" (1/1) ... [2018-11-23 13:11:27,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:11:27,334 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:11:27,432 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:11:27,435 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:11:27,445 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:11:27,453 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:11:27,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:27 WrapperNode [2018-11-23 13:11:27,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:11:27,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:11:27,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:11:27,454 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:11:27,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:27" (1/1) ... [2018-11-23 13:11:27,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:27" (1/1) ... [2018-11-23 13:11:27,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:11:27,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:11:27,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:11:27,471 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:11:27,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:27" (1/1) ... [2018-11-23 13:11:27,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:27" (1/1) ... [2018-11-23 13:11:27,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:27" (1/1) ... [2018-11-23 13:11:27,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:27" (1/1) ... [2018-11-23 13:11:27,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:27" (1/1) ... [2018-11-23 13:11:27,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:27" (1/1) ... [2018-11-23 13:11:27,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:27" (1/1) ... [2018-11-23 13:11:27,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:11:27,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:11:27,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:11:27,487 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:11:27,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/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 [2018-11-23 13:11:27,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:11:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:11:27,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:11:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:11:27,563 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:11:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:11:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 13:11:27,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 13:11:27,667 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:11:27,667 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 13:11:27,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:11:27 BoogieIcfgContainer [2018-11-23 13:11:27,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:11:27,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:11:27,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:11:27,671 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:11:27,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:11:27" (1/3) ... [2018-11-23 13:11:27,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e96efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:11:27, skipping insertion in model container [2018-11-23 13:11:27,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:27" (2/3) ... [2018-11-23 13:11:27,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e96efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:11:27, skipping insertion in model container [2018-11-23 13:11:27,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:11:27" (3/3) ... [2018-11-23 13:11:27,674 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_loose_true-unreach-call_true-termination.c [2018-11-23 13:11:27,681 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:11:27,686 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:11:27,699 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:11:27,725 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:11:27,725 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:11:27,725 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:11:27,726 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:11:27,726 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:11:27,726 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:11:27,726 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:11:27,726 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:11:27,739 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 13:11:27,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 13:11:27,743 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:11:27,744 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:11:27,746 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:11:27,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:11:27,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-23 13:11:27,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:11:27,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:11:27,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:11:27,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:11:27,793 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:11:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:11:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:11:27,831 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #26#return; [?] CALL call #t~ret1 := main(); [?] havoc ~x~0;havoc ~y~0;~x~0 := #t~nondet0;havoc #t~nondet0;assume 0 != (if ~someBinaryDOUBLEComparisonOperation(~x~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~x~0, 10.0) then 1 else 0);~y~0 := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(~x~0, ~x~0), ~x~0); VAL [main_~x~0=2.0] [?] assume ~someBinaryDOUBLEComparisonOperation(~y~0, ~convertINTToDOUBLE(0));~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 10.0); VAL [main_~x~0=2.0] [?] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~y~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~y~0, 105.0) then 1 else 0)); VAL [|__VERIFIER_assert_#in~cond|=0] [?] ~cond := #in~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] assume 0 == ~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] assume !false; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L13] havoc ~x~0; [L13] havoc ~y~0; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume 0 != (if ~someBinaryDOUBLEComparisonOperation(~x~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~x~0, 10.0) then 1 else 0); [L18] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(~x~0, ~x~0), ~x~0); VAL [~x~0=2.0] [L19-L20] assume ~someBinaryDOUBLEComparisonOperation(~y~0, ~convertINTToDOUBLE(0)); [L19] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 10.0); VAL [~x~0=2.0] [L22] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~y~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~y~0, 105.0) then 1 else 0)); VAL [#in~cond=0] [L9] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L9] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L9] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L13] havoc ~x~0; [L13] havoc ~y~0; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume 0 != (if ~someBinaryDOUBLEComparisonOperation(~x~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~x~0, 10.0) then 1 else 0); [L18] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(~x~0, ~x~0), ~x~0); VAL [~x~0=2.0] [L19-L20] assume ~someBinaryDOUBLEComparisonOperation(~y~0, ~convertINTToDOUBLE(0)); [L19] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 10.0); VAL [~x~0=2.0] [L22] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~y~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~y~0, 105.0) then 1 else 0)); VAL [#in~cond=0] [L9] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L9] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L9] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L13] havoc ~x~0; [L13] havoc ~y~0; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume 0 != (if ~someBinaryDOUBLEComparisonOperation(~x~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~x~0, 10.0) then 1 else 0); [L18] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(~x~0, ~x~0), ~x~0); VAL [~x~0=2.0] [L19] COND TRUE ~someBinaryDOUBLEComparisonOperation(~y~0, ~convertINTToDOUBLE(0)) [L19] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 10.0); VAL [~x~0=2.0] [L22] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~y~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~y~0, 105.0) then 1 else 0)); VAL [#in~cond=0] [L9] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L9] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L9] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L13] havoc ~x~0; [L13] havoc ~y~0; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume 0 != (if ~someBinaryDOUBLEComparisonOperation(~x~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~x~0, 10.0) then 1 else 0); [L18] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(~x~0, ~x~0), ~x~0); VAL [~x~0=2.0] [L19] COND TRUE ~someBinaryDOUBLEComparisonOperation(~y~0, ~convertINTToDOUBLE(0)) [L19] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 10.0); VAL [~x~0=2.0] [L22] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~y~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~y~0, 105.0) then 1 else 0)); VAL [#in~cond=0] [L9] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L9] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L9] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L13] havoc ~x~0; [L13] havoc ~y~0; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume 0 != (if ~someBinaryDOUBLEComparisonOperation(~x~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~x~0, 10.0) then 1 else 0); [L18] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(~x~0, ~x~0), ~x~0); VAL [~x~0=2.0] [L19] COND TRUE ~someBinaryDOUBLEComparisonOperation(~y~0, ~convertINTToDOUBLE(0)) [L19] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 10.0); VAL [~x~0=2.0] [L22] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~y~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~y~0, 105.0) then 1 else 0)); VAL [#in~cond=0] [L9] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L9] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L9] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L13] havoc ~x~0; [L13] havoc ~y~0; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume 0 != (if ~someBinaryDOUBLEComparisonOperation(~x~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~x~0, 10.0) then 1 else 0); [L18] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(~x~0, ~x~0), ~x~0); VAL [~x~0=2.0] [L19] COND TRUE ~someBinaryDOUBLEComparisonOperation(~y~0, ~convertINTToDOUBLE(0)) [L19] ~y~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 10.0); VAL [~x~0=2.0] [L22] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~y~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~y~0, 105.0) then 1 else 0)); VAL [#in~cond=0] [L9] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L9] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L9] assert false; VAL [#in~cond=0, ~cond=0] [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x VAL [x=2] [L19] COND TRUE y >= 0 [L19] y = x / 10. VAL [x=2] [L22] CALL __VERIFIER_assert(y >= 0. && y <= 105.) VAL [\old(cond)=0] [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, cond=0] ----- [2018-11-23 13:11:27,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:11:27 BoogieIcfgContainer [2018-11-23 13:11:27,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:11:27,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:11:27,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:11:27,855 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:11:27,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:11:27" (3/4) ... [2018-11-23 13:11:27,859 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 13:11:27,859 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:11:27,860 INFO L168 Benchmark]: Toolchain (without parser) took 547.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:11:27,861 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:11:27,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.25 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:11:27,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.29 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:11:27,864 INFO L168 Benchmark]: Boogie Preprocessor took 15.42 ms. Allocated memory is still 1.0 GB. Free memory is still 939.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:11:27,864 INFO L168 Benchmark]: RCFGBuilder took 180.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -199.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 13:11:27,865 INFO L168 Benchmark]: TraceAbstraction took 186.02 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-23 13:11:27,865 INFO L168 Benchmark]: Witness Printer took 4.38 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. [2018-11-23 13:11:27,868 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.25 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.29 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.42 ms. Allocated memory is still 1.0 GB. Free memory is still 939.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 180.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -199.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 186.02 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.38 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: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x VAL [x=2] [L19] COND TRUE y >= 0 [L19] y = x / 10. VAL [x=2] [L22] CALL __VERIFIER_assert(y >= 0. && y <= 105.) VAL [\old(cond)=0] [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-aa41828 [2018-11-23 13:11:29,356 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:11:29,357 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:11:29,367 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:11:29,368 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:11:29,368 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:11:29,369 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:11:29,371 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:11:29,372 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:11:29,373 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:11:29,373 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:11:29,374 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:11:29,375 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:11:29,376 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:11:29,376 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:11:29,377 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:11:29,378 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:11:29,380 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:11:29,381 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:11:29,382 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:11:29,383 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:11:29,384 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:11:29,386 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:11:29,387 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:11:29,387 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:11:29,388 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:11:29,388 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:11:29,389 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:11:29,390 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:11:29,391 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:11:29,391 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:11:29,392 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:11:29,392 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:11:29,392 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:11:29,393 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:11:29,394 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:11:29,394 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 13:11:29,407 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:11:29,407 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:11:29,408 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:11:29,408 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:11:29,408 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 13:11:29,408 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 13:11:29,408 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 13:11:29,408 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 13:11:29,409 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 13:11:29,409 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 13:11:29,409 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:11:29,410 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:11:29,410 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:11:29,410 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:11:29,410 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:11:29,410 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:11:29,412 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:11:29,412 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 13:11:29,412 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 13:11:29,412 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:11:29,413 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:11:29,413 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:11:29,413 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:11:29,413 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:11:29,413 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:11:29,413 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:11:29,414 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:11:29,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:11:29,414 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:11:29,414 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:11:29,414 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:11:29,414 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 13:11:29,415 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:11:29,415 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 13:11:29,415 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 13:11:29,415 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/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 -> 8c97aae237a76dbf85532dc8d030e712982e570a [2018-11-23 13:11:29,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:11:29,463 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:11:29,466 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:11:29,467 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:11:29,468 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:11:29,468 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-11-23 13:11:29,516 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/data/6cf3cffcb/b29dcb4e319540b391c52451af0bf738/FLAGcbf4c9738 [2018-11-23 13:11:29,867 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:11:29,868 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-11-23 13:11:29,872 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/data/6cf3cffcb/b29dcb4e319540b391c52451af0bf738/FLAGcbf4c9738 [2018-11-23 13:11:30,281 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/data/6cf3cffcb/b29dcb4e319540b391c52451af0bf738 [2018-11-23 13:11:30,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:11:30,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:11:30,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:11:30,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:11:30,288 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:11:30,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:11:30" (1/1) ... [2018-11-23 13:11:30,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eec4bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:30, skipping insertion in model container [2018-11-23 13:11:30,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:11:30" (1/1) ... [2018-11-23 13:11:30,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:11:30,307 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:11:30,429 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:11:30,433 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:11:30,443 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:11:30,452 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:11:30,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:30 WrapperNode [2018-11-23 13:11:30,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:11:30,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:11:30,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:11:30,453 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:11:30,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:30" (1/1) ... [2018-11-23 13:11:30,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:30" (1/1) ... [2018-11-23 13:11:30,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:11:30,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:11:30,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:11:30,466 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:11:30,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:30" (1/1) ... [2018-11-23 13:11:30,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:30" (1/1) ... [2018-11-23 13:11:30,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:30" (1/1) ... [2018-11-23 13:11:30,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:30" (1/1) ... [2018-11-23 13:11:30,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:30" (1/1) ... [2018-11-23 13:11:30,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:30" (1/1) ... [2018-11-23 13:11:30,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:30" (1/1) ... [2018-11-23 13:11:30,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:11:30,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:11:30,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:11:30,483 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:11:30,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/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 [2018-11-23 13:11:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:11:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:11:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:11:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:11:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:11:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:11:30,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 13:11:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 13:11:33,626 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:11:33,627 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 13:11:33,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:11:33 BoogieIcfgContainer [2018-11-23 13:11:33,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:11:33,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:11:33,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:11:33,630 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:11:33,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:11:30" (1/3) ... [2018-11-23 13:11:33,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65751958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:11:33, skipping insertion in model container [2018-11-23 13:11:33,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:30" (2/3) ... [2018-11-23 13:11:33,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65751958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:11:33, skipping insertion in model container [2018-11-23 13:11:33,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:11:33" (3/3) ... [2018-11-23 13:11:33,632 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_loose_true-unreach-call_true-termination.c [2018-11-23 13:11:33,638 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:11:33,642 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:11:33,651 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:11:33,670 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:11:33,670 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:11:33,670 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:11:33,670 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:11:33,671 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:11:33,671 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:11:33,671 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:11:33,671 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:11:33,671 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:11:33,683 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 13:11:33,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 13:11:33,687 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:11:33,688 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:11:33,689 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:11:33,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:11:33,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-23 13:11:33,695 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 13:11:33,696 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/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 [2018-11-23 13:11:33,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:11:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:11:34,155 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:11:36,386 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven main_~x~0 .cse0) c_main_~y~0) (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53))))) is different from false [2018-11-23 13:11:38,544 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven main_~x~0 .cse0) c_main_~y~0) (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53))))) is different from true [2018-11-23 13:11:53,547 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven main_~x~0 .cse0) (_ +zero 11 53))) (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53))))) .cse1) (and (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse2) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse2) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) .cse1))) is different from false [2018-11-23 13:12:04,847 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse2) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse2) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))))))))) is different from false [2018-11-23 13:12:16,008 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse0) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) is different from false [2018-11-23 13:12:18,189 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse0) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) is different from true [2018-11-23 13:12:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:12:18,193 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 13:12:18,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:12:18,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 13:12:18,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 13:12:18,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 13:12:18,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-11-23 13:12:18,219 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2018-11-23 13:12:30,924 WARN L180 SmtUtils]: Spent 7.61 s on a formula simplification that was a NOOP. DAG size: 13 [2018-11-23 13:12:31,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:12:31,670 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-11-23 13:12:31,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 13:12:31,855 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-11-23 13:12:31,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:12:31,860 INFO L225 Difference]: With dead ends: 30 [2018-11-23 13:12:31,860 INFO L226 Difference]: Without dead ends: 11 [2018-11-23 13:12:31,863 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=14, Invalid=7, Unknown=7, NotChecked=28, Total=56 [2018-11-23 13:12:31,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-11-23 13:12:31,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-23 13:12:31,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-23 13:12:31,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2018-11-23 13:12:31,889 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2018-11-23 13:12:31,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:12:31,890 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2018-11-23 13:12:31,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 13:12:31,890 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-11-23 13:12:31,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 13:12:31,890 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:12:31,890 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:12:31,891 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:12:31,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:12:31,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1734924095, now seen corresponding path program 1 times [2018-11-23 13:12:31,891 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 13:12:31,891 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/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 [2018-11-23 13:12:31,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:12:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:12:32,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:12:46,039 WARN L180 SmtUtils]: Spent 11.22 s on a formula simplification that was a NOOP. DAG size: 12 [2018-11-23 13:12:48,095 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from false [2018-11-23 13:12:50,145 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from true [2018-11-23 13:13:06,609 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (let ((.cse0 (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 v_prenex_3) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse3) (and .cse3 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))))) is different from false [2018-11-23 13:13:21,012 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_3) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (and .cse0 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (let ((.cse3 (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.geq .cse3 (_ +zero 11 53)) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))))) is different from false [2018-11-23 13:13:31,274 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_3) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) is different from false [2018-11-23 13:13:33,315 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_3) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) is different from true [2018-11-23 13:13:33,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:13:33,317 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 13:13:33,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:13:33,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 13:13:33,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 13:13:33,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 13:13:33,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-11-23 13:13:33,328 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 7 states. [2018-11-23 13:13:35,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:13:35,402 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2018-11-23 13:13:35,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 13:13:35,447 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-11-23 13:13:35,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:13:35,448 INFO L225 Difference]: With dead ends: 11 [2018-11-23 13:13:35,448 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 13:13:35,448 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-11-23 13:13:35,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 13:13:35,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 13:13:35,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 13:13:35,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 13:13:35,449 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-23 13:13:35,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:13:35,450 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:13:35,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 13:13:35,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:13:35,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:13:35,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 13:14:00,773 WARN L180 SmtUtils]: Spent 25.29 s on a formula simplification that was a NOOP. DAG size: 27 [2018-11-23 13:14:02,622 WARN L180 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 101 DAG size of output: 1 [2018-11-23 13:14:02,624 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 13:14:02,624 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:14:02,624 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:14:02,624 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 13:14:02,624 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:14:02,624 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:14:02,624 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 20) the Hoare annotation is: (let ((.cse0 (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (.cse1 (fp.geq main_~x~0 (_ +zero 11 53)))) (or (and .cse0 .cse1 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven main_~x~0 .cse3) main_~y~0) (fp.leq main_~x~0 .cse3) (fp.geq main_~x~0 (_ +zero 11 53))))) .cse0 .cse1))) [2018-11-23 13:14:02,625 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 24) the Hoare annotation is: true [2018-11-23 13:14:02,625 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 11 24) no Hoare annotation was computed. [2018-11-23 13:14:02,625 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 24) no Hoare annotation was computed. [2018-11-23 13:14:02,625 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 13:14:02,625 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-11-23 13:14:02,625 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-11-23 13:14:02,625 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 9) the Hoare annotation is: true [2018-11-23 13:14:02,625 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 9) no Hoare annotation was computed. [2018-11-23 13:14:02,625 INFO L448 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-11-23 13:14:02,626 INFO L448 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-11-23 13:14:02,626 INFO L448 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2018-11-23 13:14:02,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:14:02 BoogieIcfgContainer [2018-11-23 13:14:02,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:14:02,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:14:02,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:14:02,629 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:14:02,629 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:11:33" (3/4) ... [2018-11-23 13:14:02,632 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 13:14:02,637 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 13:14:02,637 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 13:14:02,637 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 13:14:02,641 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 13:14:02,641 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 13:14:02,641 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 13:14:02,673 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5bcd351c-d332-41b9-9df0-2da55d2c22f4/bin-2019/utaipan/witness.graphml [2018-11-23 13:14:02,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:14:02,674 INFO L168 Benchmark]: Toolchain (without parser) took 152389.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 948.6 MB in the beginning and 1.0 GB in the end (delta: -75.4 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:14:02,674 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:14:02,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.71 ms. Allocated memory is still 1.0 GB. Free memory was 948.6 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:14:02,675 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.11 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 13:14:02,675 INFO L168 Benchmark]: Boogie Preprocessor took 16.54 ms. Allocated memory is still 1.0 GB. Free memory is still 932.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:14:02,675 INFO L168 Benchmark]: RCFGBuilder took 3144.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-11-23 13:14:02,676 INFO L168 Benchmark]: TraceAbstraction took 149000.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 11.5 GB. [2018-11-23 13:14:02,676 INFO L168 Benchmark]: Witness Printer took 44.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:14:02,678 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 167.71 ms. Allocated memory is still 1.0 GB. Free memory was 948.6 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.11 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.54 ms. Allocated memory is still 1.0 GB. Free memory is still 932.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 3144.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 149000.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 11.5 GB. * Witness Printer took 44.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 148.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 15.7s AutomataDifference, 0.0s DeadEndRemovalTime, 27.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 4 SDslu, 51 SDs, 0 SdLazy, 2 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 75 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 381 FormulaSimplificationTreeSizeReductionInter, 27.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 105.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 8 QuantifiedInterpolants, 5112 SizeOfPredicates, 6 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...