./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/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 20183bacfea343fcbafe493366fbda56f082cdb8 ......................................................................................................................................................................................................................................................... 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_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/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 20183bacfea343fcbafe493366fbda56f082cdb8 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:21:57,052 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:21:57,055 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:21:57,069 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:21:57,070 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:21:57,071 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:21:57,072 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:21:57,076 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:21:57,078 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:21:57,079 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:21:57,079 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:21:57,080 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:21:57,080 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:21:57,081 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:21:57,084 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:21:57,085 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:21:57,086 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:21:57,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:21:57,089 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:21:57,101 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:21:57,103 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:21:57,104 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:21:57,105 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:21:57,106 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:21:57,106 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:21:57,107 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:21:57,107 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:21:57,108 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:21:57,109 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:21:57,110 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:21:57,110 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:21:57,111 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:21:57,111 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:21:57,111 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:21:57,112 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:21:57,113 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:21:57,113 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 19:21:57,143 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:21:57,143 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:21:57,144 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:21:57,144 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 19:21:57,144 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 19:21:57,145 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 19:21:57,145 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 19:21:57,145 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 19:21:57,145 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 19:21:57,145 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 19:21:57,145 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 19:21:57,146 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:21:57,146 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:21:57,146 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:21:57,147 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:21:57,147 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:21:57,147 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:21:57,147 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:21:57,147 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:21:57,147 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:21:57,148 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:21:57,148 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:21:57,148 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:21:57,148 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:21:57,148 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:21:57,148 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:21:57,149 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:21:57,149 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:21:57,149 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:21:57,149 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:21:57,149 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 19:21:57,149 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:21:57,151 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:21:57,152 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 19:21:57,152 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_4a072b20-18da-44a9-b936-54c8d069019e/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 -> 20183bacfea343fcbafe493366fbda56f082cdb8 [2018-10-26 19:21:57,194 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:21:57,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:21:57,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:21:57,211 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:21:57,211 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:21:57,212 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.c [2018-10-26 19:21:57,265 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/data/a426459dd/93cce89e0923418a8cab281a8ad67aaf/FLAG860d0ee55 [2018-10-26 19:21:57,648 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:21:57,649 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.c [2018-10-26 19:21:57,655 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/data/a426459dd/93cce89e0923418a8cab281a8ad67aaf/FLAG860d0ee55 [2018-10-26 19:21:57,671 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/data/a426459dd/93cce89e0923418a8cab281a8ad67aaf [2018-10-26 19:21:57,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:21:57,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 19:21:57,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:21:57,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:21:57,681 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:21:57,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:21:57" (1/1) ... [2018-10-26 19:21:57,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255b6356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:57, skipping insertion in model container [2018-10-26 19:21:57,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:21:57" (1/1) ... [2018-10-26 19:21:57,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:21:57,716 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:21:57,868 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:21:57,872 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:21:57,887 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:21:57,901 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:21:57,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:57 WrapperNode [2018-10-26 19:21:57,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:21:57,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:21:57,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:21:57,902 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:21:57,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:57" (1/1) ... [2018-10-26 19:21:57,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:57" (1/1) ... [2018-10-26 19:21:57,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:21:57,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:21:57,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:21:57,925 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:21:57,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:57" (1/1) ... [2018-10-26 19:21:57,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:57" (1/1) ... [2018-10-26 19:21:57,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:57" (1/1) ... [2018-10-26 19:21:57,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:57" (1/1) ... [2018-10-26 19:21:57,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:57" (1/1) ... [2018-10-26 19:21:57,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:57" (1/1) ... [2018-10-26 19:21:57,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:57" (1/1) ... [2018-10-26 19:21:57,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:21:57,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:21:57,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:21:57,948 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:21:57,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/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 [2018-10-26 19:21:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:21:58,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:21:58,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:21:58,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:21:58,084 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:21:58,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:21:58,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 19:21:58,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 19:21:58,454 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:21:58,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:21:58 BoogieIcfgContainer [2018-10-26 19:21:58,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:21:58,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:21:58,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:21:58,459 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:21:58,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:21:57" (1/3) ... [2018-10-26 19:21:58,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2615c49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:21:58, skipping insertion in model container [2018-10-26 19:21:58,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:57" (2/3) ... [2018-10-26 19:21:58,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2615c49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:21:58, skipping insertion in model container [2018-10-26 19:21:58,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:21:58" (3/3) ... [2018-10-26 19:21:58,463 INFO L112 eAbstractionObserver]: Analyzing ICFG filter1_true-unreach-call_true-termination.c [2018-10-26 19:21:58,473 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:21:58,480 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:21:58,499 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:21:58,552 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:21:58,552 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:21:58,552 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:21:58,552 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:21:58,552 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:21:58,552 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:21:58,552 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:21:58,553 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:21:58,588 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-26 19:21:58,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 19:21:58,599 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:21:58,600 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:21:58,603 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:21:58,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:21:58,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1867248710, now seen corresponding path program 1 times [2018-10-26 19:21:58,613 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 19:21:58,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:21:58,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:21:58,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:21:58,666 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 19:21:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:21:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:21:58,755 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 19:21:58,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:21:58 BoogieIcfgContainer [2018-10-26 19:21:58,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:21:58,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:21:58,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:21:58,798 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:21:58,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:21:58" (3/4) ... [2018-10-26 19:21:58,805 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 19:21:58,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:21:58,810 INFO L168 Benchmark]: Toolchain (without parser) took 1135.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 959.7 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:21:58,814 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:21:58,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.78 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:58,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.41 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:21:58,818 INFO L168 Benchmark]: Boogie Preprocessor took 22.46 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:58,820 INFO L168 Benchmark]: RCFGBuilder took 507.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -195.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:58,822 INFO L168 Benchmark]: TraceAbstraction took 341.59 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:58,823 INFO L168 Benchmark]: Witness Printer took 11.64 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. [2018-10-26 19:21:58,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 224.78 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 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 22.41 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.46 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 507.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -195.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 341.59 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Witness Printer took 11.64 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: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 26, overapproximation of to_real at line 29. Possible FailurePath: [L17] double E0, E1, S; [L18] int i; [L20] E1 = 0 [L21] S = 0 [L23] i = 0 VAL [i=0] [L23] COND TRUE i <= 1000000 [L25] E0 = __VERIFIER_nondet_double() [L28] COND TRUE __VERIFIER_nondet_int() [L29] S = 0 VAL [E0=2, i=0] [L34] E1 = E0 VAL [E0=2, E1=2, i=0] [L36] CALL __VERIFIER_assert(S >= -10000. && S <= 10000.) VAL [\old(cond)=0] [L12] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L12] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. UNSAFE Result, 0.2s 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=22occurred 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, 13 NumberOfCodeBlocks, 13 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 0.1.23-1dbac8b [2018-10-26 19:22:00,962 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:22:00,964 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:22:00,974 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:22:00,975 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:22:00,976 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:22:00,977 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:22:00,978 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:22:00,980 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:22:00,980 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:22:00,981 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:22:00,981 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:22:00,983 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:22:00,984 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:22:00,985 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:22:00,985 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:22:00,989 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:22:00,990 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:22:00,992 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:22:00,993 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:22:00,995 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:22:00,996 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:22:00,998 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:22:00,999 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:22:00,999 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:22:01,000 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:22:01,000 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:22:01,001 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:22:01,003 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:22:01,004 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:22:01,004 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:22:01,004 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:22:01,005 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:22:01,005 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:22:01,006 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:22:01,007 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:22:01,007 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 19:22:01,027 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:22:01,027 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:22:01,028 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:22:01,028 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 19:22:01,028 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 19:22:01,028 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 19:22:01,029 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 19:22:01,029 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 19:22:01,029 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:22:01,030 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:22:01,031 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:22:01,031 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:22:01,031 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:22:01,031 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:22:01,031 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:22:01,031 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 19:22:01,032 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 19:22:01,032 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:22:01,032 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:22:01,032 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:22:01,032 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:22:01,032 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:22:01,033 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:22:01,033 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:22:01,033 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:22:01,033 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:22:01,033 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:22:01,033 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:22:01,036 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 19:22:01,036 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:22:01,036 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 19:22:01,036 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 19:22:01,036 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_4a072b20-18da-44a9-b936-54c8d069019e/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 -> 20183bacfea343fcbafe493366fbda56f082cdb8 [2018-10-26 19:22:01,073 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:22:01,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:22:01,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:22:01,093 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:22:01,093 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:22:01,094 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.c [2018-10-26 19:22:01,149 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/data/8741df61b/7584a30cc52d498183a83e36b62eff8d/FLAGbc45877db [2018-10-26 19:22:01,536 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:22:01,537 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/sv-benchmarks/c/float-benchs/filter1_true-unreach-call_true-termination.c [2018-10-26 19:22:01,545 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/data/8741df61b/7584a30cc52d498183a83e36b62eff8d/FLAGbc45877db [2018-10-26 19:22:01,561 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/data/8741df61b/7584a30cc52d498183a83e36b62eff8d [2018-10-26 19:22:01,567 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:22:01,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 19:22:01,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:22:01,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:22:01,578 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:22:01,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:22:01" (1/1) ... [2018-10-26 19:22:01,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44adf95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:22:01, skipping insertion in model container [2018-10-26 19:22:01,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:22:01" (1/1) ... [2018-10-26 19:22:01,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:22:01,618 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:22:01,780 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:22:01,788 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:22:01,808 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:22:01,822 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:22:01,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:22:01 WrapperNode [2018-10-26 19:22:01,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:22:01,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:22:01,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:22:01,824 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:22:01,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:22:01" (1/1) ... [2018-10-26 19:22:01,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:22:01" (1/1) ... [2018-10-26 19:22:01,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:22:01,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:22:01,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:22:01,848 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:22:01,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:22:01" (1/1) ... [2018-10-26 19:22:01,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:22:01" (1/1) ... [2018-10-26 19:22:01,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:22:01" (1/1) ... [2018-10-26 19:22:01,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:22:01" (1/1) ... [2018-10-26 19:22:01,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:22:01" (1/1) ... [2018-10-26 19:22:01,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:22:01" (1/1) ... [2018-10-26 19:22:01,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:22:01" (1/1) ... [2018-10-26 19:22:01,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:22:01,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:22:01,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:22:01,873 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:22:01,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:22:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/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 [2018-10-26 19:22:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:22:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:22:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:22:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:22:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:22:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:22:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 19:22:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 19:22:02,825 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:22:02,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:22:02 BoogieIcfgContainer [2018-10-26 19:22:02,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:22:02,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:22:02,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:22:02,829 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:22:02,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:22:01" (1/3) ... [2018-10-26 19:22:02,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db92fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:22:02, skipping insertion in model container [2018-10-26 19:22:02,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:22:01" (2/3) ... [2018-10-26 19:22:02,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db92fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:22:02, skipping insertion in model container [2018-10-26 19:22:02,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:22:02" (3/3) ... [2018-10-26 19:22:02,835 INFO L112 eAbstractionObserver]: Analyzing ICFG filter1_true-unreach-call_true-termination.c [2018-10-26 19:22:02,845 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:22:02,852 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:22:02,868 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:22:02,897 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:22:02,898 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:22:02,898 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:22:02,898 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:22:02,898 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:22:02,899 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:22:02,899 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:22:02,899 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:22:02,899 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:22:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-26 19:22:02,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 19:22:02,923 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:22:02,924 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:22:02,926 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:22:02,932 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:22:02,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1867248710, now seen corresponding path program 1 times [2018-10-26 19:22:02,937 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:22:02,937 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 19:22:02,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 19:22:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:22:02,995 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:22:03,252 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 5 [2018-10-26 19:22:03,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:22:03,284 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:22:03,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:22:03,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 19:22:03,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 19:22:03,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 19:22:03,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 19:22:03,314 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2018-10-26 19:22:04,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:22:04,501 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2018-10-26 19:22:04,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 19:22:04,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-10-26 19:22:04,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:22:04,511 INFO L225 Difference]: With dead ends: 52 [2018-10-26 19:22:04,511 INFO L226 Difference]: Without dead ends: 27 [2018-10-26 19:22:04,513 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 19:22:04,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-10-26 19:22:04,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2018-10-26 19:22:04,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-26 19:22:04,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-10-26 19:22:04,556 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 13 [2018-10-26 19:22:04,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:22:04,557 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-10-26 19:22:04,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 19:22:04,557 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-10-26 19:22:04,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 19:22:04,558 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:22:04,558 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:22:04,559 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:22:04,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:22:04,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1924507012, now seen corresponding path program 1 times [2018-10-26 19:22:04,559 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:22:04,560 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 19:22:04,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-26 19:22:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:22:04,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:22:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:22:05,433 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:22:05,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:22:05,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 19:22:05,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 19:22:05,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 19:22:05,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:22:05,455 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2018-10-26 19:22:10,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:22:10,721 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2018-10-26 19:22:10,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 19:22:10,752 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-10-26 19:22:10,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:22:10,755 INFO L225 Difference]: With dead ends: 39 [2018-10-26 19:22:10,755 INFO L226 Difference]: Without dead ends: 37 [2018-10-26 19:22:10,756 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-10-26 19:22:10,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-10-26 19:22:10,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2018-10-26 19:22:10,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-10-26 19:22:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2018-10-26 19:22:10,763 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 13 [2018-10-26 19:22:10,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:22:10,763 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2018-10-26 19:22:10,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 19:22:10,763 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-10-26 19:22:10,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 19:22:10,764 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:22:10,764 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:22:10,764 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:22:10,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:22:10,764 INFO L82 PathProgramCache]: Analyzing trace with hash 521295018, now seen corresponding path program 1 times [2018-10-26 19:22:10,765 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:22:10,765 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-10-26 19:22:10,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:22:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:22:11,311 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:22:13,602 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse1 (fp.neg .cse0))) (and (fp.leq main_~E0~0 .cse0) (fp.geq main_~E1~0 .cse1) (fp.leq main_~E1~0 .cse0) (fp.geq main_~E0~0 .cse1) (= (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) ((_ to_fp 11 53) RNE (_ bv0 32))) main_~E0~0) main_~E1~0) c_main_~S~0))))) is different from true [2018-10-26 19:22:47,295 WARN L179 SmtUtils]: Spent 21.32 s on a formula simplification that was a NOOP. DAG size: 44 [2018-10-26 19:23:23,925 WARN L179 SmtUtils]: Spent 21.27 s on a formula simplification that was a NOOP. DAG size: 44 [2018-10-26 19:23:34,008 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53)) (v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse1 (fp.neg .cse0))) (and (fp.leq v_prenex_3 .cse0) (not (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) ((_ to_fp 11 53) RNE (_ bv0 32))) v_prenex_3) v_prenex_1) (fp.neg ((_ to_fp 11 53) RNE 10000.0)))) (fp.geq v_prenex_1 .cse1) (fp.geq v_prenex_3 .cse1) (fp.leq v_prenex_1 .cse0))))) (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse3 (fp.neg .cse2))) (and (fp.leq main_~E0~0 .cse2) (fp.geq main_~E1~0 .cse3) (fp.leq main_~E1~0 .cse2) (fp.geq main_~E0~0 .cse3) (not (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) ((_ to_fp 11 53) RNE (_ bv0 32))) main_~E0~0) main_~E1~0) ((_ to_fp 11 53) RNE 10000.0)))))))) is different from false [2018-10-26 19:23:36,017 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53)) (v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse1 (fp.neg .cse0))) (and (fp.leq v_prenex_3 .cse0) (not (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) ((_ to_fp 11 53) RNE (_ bv0 32))) v_prenex_3) v_prenex_1) (fp.neg ((_ to_fp 11 53) RNE 10000.0)))) (fp.geq v_prenex_1 .cse1) (fp.geq v_prenex_3 .cse1) (fp.leq v_prenex_1 .cse0))))) (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse3 (fp.neg .cse2))) (and (fp.leq main_~E0~0 .cse2) (fp.geq main_~E1~0 .cse3) (fp.leq main_~E1~0 .cse2) (fp.geq main_~E0~0 .cse3) (not (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) ((_ to_fp 11 53) RNE (_ bv0 32))) main_~E0~0) main_~E1~0) ((_ to_fp 11 53) RNE 10000.0)))))))) is different from true [2018-10-26 19:23:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-10-26 19:23:36,027 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 19:23:44,117 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) c_main_~E0~0) c_main_~E1~0)) (.cse1 ((_ to_fp 11 53) RNE 10000.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from false [2018-10-26 19:23:46,154 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) c_main_~E0~0) c_main_~E1~0)) (.cse1 ((_ to_fp 11 53) RNE 10000.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from true [2018-10-26 19:23:48,245 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_main_~E0~0_5 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (or (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) v_main_~E0~0_5) c_main_~E1~0) ((_ to_fp 11 53) RNE 10000.0)) (not (fp.leq v_main_~E0~0_5 .cse0)) (not (fp.geq v_main_~E0~0_5 (fp.neg .cse0)))))) (forall ((v_prenex_4 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 1.0))) (or (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) v_prenex_4) c_main_~E1~0) (fp.neg ((_ to_fp 11 53) RNE 10000.0))) (not (fp.geq v_prenex_4 (fp.neg .cse1))) (not (fp.leq v_prenex_4 .cse1)))))) is different from true [2018-10-26 19:23:48,273 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 19:23:48,273 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 19:23:48,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:23:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:23:54,353 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:24:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-10-26 19:24:24,086 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 19:24:26,189 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((|main_#t~nondet1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (or (not (fp.geq |main_#t~nondet1| (fp.neg .cse0))) (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) |main_#t~nondet1|) c_main_~E1~0) (fp.neg ((_ to_fp 11 53) RNE 10000.0))) (not (fp.leq |main_#t~nondet1| .cse0))))) (forall ((v_prenex_8 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 1.0))) (or (not (fp.geq v_prenex_8 (fp.neg .cse1))) (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) v_prenex_8) c_main_~E1~0) ((_ to_fp 11 53) RNE 10000.0)) (not (fp.leq v_prenex_8 .cse1)))))) is different from true [2018-10-26 19:24:28,309 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 11 53) RNE 10000.0))) (let ((.cse1 (not (fp.leq c_main_~S~0 .cse4))) (.cse2 (not (fp.geq c_main_~S~0 (fp.neg .cse4))))) (and (or (forall ((|main_#t~nondet1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (or (not (fp.geq |main_#t~nondet1| (fp.neg .cse0))) (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) |main_#t~nondet1|) c_main_~E1~0) (fp.neg ((_ to_fp 11 53) RNE 10000.0))) (not (fp.leq |main_#t~nondet1| .cse0))))) .cse1 .cse2) (or .cse1 .cse2 (forall ((v_prenex_8 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) RNE 1.0))) (or (not (fp.geq v_prenex_8 (fp.neg .cse3))) (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) v_prenex_8) c_main_~E1~0) ((_ to_fp 11 53) RNE 10000.0)) (not (fp.leq v_prenex_8 .cse3))))))))) is different from true [2018-10-26 19:24:28,346 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 19:24:28,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 11 [2018-10-26 19:24:28,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-26 19:24:28,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-26 19:24:28,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=104, Unknown=12, NotChecked=150, Total=306 [2018-10-26 19:24:28,347 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 12 states. [2018-10-26 19:24:42,965 WARN L179 SmtUtils]: Spent 2.47 s on a formula simplification that was a NOOP. DAG size: 22 [2018-10-26 19:24:45,670 WARN L179 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 46 DAG size of output: 5 [2018-10-26 19:25:02,991 WARN L179 SmtUtils]: Spent 15.20 s on a formula simplification. DAG size of input: 54 DAG size of output: 8 [2018-10-26 19:26:10,328 WARN L179 SmtUtils]: Spent 55.30 s on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2018-10-26 19:26:23,227 WARN L832 $PredicateComparison]: unable to prove that (and (= |c___VERIFIER_assert_#in~cond| c___VERIFIER_assert_~cond) (or (exists ((v_prenex_3 (_ FloatingPoint 11 53)) (v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse1 (fp.neg .cse0))) (and (fp.leq v_prenex_3 .cse0) (not (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) ((_ to_fp 11 53) RNE (_ bv0 32))) v_prenex_3) v_prenex_1) (fp.neg ((_ to_fp 11 53) RNE 10000.0)))) (fp.geq v_prenex_1 .cse1) (fp.geq v_prenex_3 .cse1) (fp.leq v_prenex_1 .cse0))))) (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse3 (fp.neg .cse2))) (and (fp.leq main_~E0~0 .cse2) (fp.geq main_~E1~0 .cse3) (fp.leq main_~E1~0 .cse2) (fp.geq main_~E0~0 .cse3) (not (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) ((_ to_fp 11 53) RNE (_ bv0 32))) main_~E0~0) main_~E1~0) ((_ to_fp 11 53) RNE 10000.0))))))))) is different from false [2018-10-26 19:26:25,239 WARN L854 $PredicateComparison]: unable to prove that (and (= |c___VERIFIER_assert_#in~cond| c___VERIFIER_assert_~cond) (or (exists ((v_prenex_3 (_ FloatingPoint 11 53)) (v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse1 (fp.neg .cse0))) (and (fp.leq v_prenex_3 .cse0) (not (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) ((_ to_fp 11 53) RNE (_ bv0 32))) v_prenex_3) v_prenex_1) (fp.neg ((_ to_fp 11 53) RNE 10000.0)))) (fp.geq v_prenex_1 .cse1) (fp.geq v_prenex_3 .cse1) (fp.leq v_prenex_1 .cse0))))) (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse3 (fp.neg .cse2))) (and (fp.leq main_~E0~0 .cse2) (fp.geq main_~E1~0 .cse3) (fp.leq main_~E1~0 .cse2) (fp.geq main_~E0~0 .cse3) (not (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) ((_ to_fp 11 53) RNE (_ bv0 32))) main_~E0~0) main_~E1~0) ((_ to_fp 11 53) RNE 10000.0))))))))) is different from true [2018-10-26 19:26:25,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:26:25,262 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2018-10-26 19:26:25,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-26 19:26:25,263 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2018-10-26 19:26:25,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:26:25,264 INFO L225 Difference]: With dead ends: 43 [2018-10-26 19:26:25,264 INFO L226 Difference]: Without dead ends: 41 [2018-10-26 19:26:25,266 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 180.5s TimeCoverageRelationStatistics Valid=70, Invalid=207, Unknown=23, NotChecked=252, Total=552 [2018-10-26 19:26:25,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-10-26 19:26:25,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2018-10-26 19:26:25,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-26 19:26:25,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2018-10-26 19:26:25,279 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 23 [2018-10-26 19:26:25,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:26:25,280 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2018-10-26 19:26:25,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-26 19:26:25,280 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-10-26 19:26:25,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 19:26:25,281 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:26:25,286 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:26:25,286 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:26:25,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:26:25,287 INFO L82 PathProgramCache]: Analyzing trace with hash -499773336, now seen corresponding path program 1 times [2018-10-26 19:26:25,287 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:26:25,287 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-10-26 19:26:25,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:26:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:26:26,586 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:26:29,714 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse1 (fp.neg .cse0))) (and (fp.leq main_~E0~0 .cse0) (fp.geq main_~E1~0 .cse1) (fp.leq main_~E1~0 .cse0) (fp.geq main_~E0~0 .cse1) (= (fp.sub RNE (fp.add RNE (let ((.cse2 ((_ to_fp 11 53) RNE (/ 999.0 1000.0)))) (fp.mul RNE .cse2 (let ((.cse3 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE .cse2 .cse3) main_~E1~0) .cse3)))) main_~E0~0) main_~E1~0) c_main_~S~0))))) is different from true [2018-10-26 19:26:45,422 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse4 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((v_prenex_10 (_ FloatingPoint 11 53)) (v_prenex_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse1 (fp.neg .cse0))) (and (fp.leq v_prenex_9 .cse0) (fp.geq v_prenex_9 .cse1) (fp.geq v_prenex_10 .cse1) (fp.leq v_prenex_10 .cse0) (not (fp.leq (fp.sub RNE (fp.add RNE (let ((.cse2 ((_ to_fp 11 53) RNE (/ 999.0 1000.0)))) (fp.mul RNE .cse2 (let ((.cse3 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE .cse2 .cse3) v_prenex_9) .cse3)))) v_prenex_10) v_prenex_9) ((_ to_fp 11 53) RNE 10000.0))))))) .cse4) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (and (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse7 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse8 (fp.neg .cse7))) (and (not (fp.geq (fp.sub RNE (fp.add RNE (let ((.cse5 ((_ to_fp 11 53) RNE (/ 999.0 1000.0)))) (fp.mul RNE .cse5 (let ((.cse6 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE .cse5 .cse6) main_~E1~0) .cse6)))) main_~E0~0) main_~E1~0) (fp.neg ((_ to_fp 11 53) RNE 10000.0)))) (fp.leq main_~E0~0 .cse7) (fp.geq main_~E1~0 .cse8) (fp.leq main_~E1~0 .cse7) (fp.geq main_~E0~0 .cse8))))) .cse4))) is different from false [2018-10-26 19:26:55,678 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse4 (fp.neg .cse3))) (and (not (fp.geq (fp.sub RNE (fp.add RNE (let ((.cse1 ((_ to_fp 11 53) RNE (/ 999.0 1000.0)))) (fp.mul RNE .cse1 (let ((.cse2 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE .cse1 .cse2) main_~E1~0) .cse2)))) main_~E0~0) main_~E1~0) (fp.neg ((_ to_fp 11 53) RNE 10000.0)))) (fp.leq main_~E0~0 .cse3) (fp.geq main_~E1~0 .cse4) (fp.leq main_~E1~0 .cse3) (fp.geq main_~E0~0 .cse4)))))) (and .cse0 (exists ((v_prenex_10 (_ FloatingPoint 11 53)) (v_prenex_9 (_ FloatingPoint 11 53))) (let ((.cse5 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse6 (fp.neg .cse5))) (and (fp.leq v_prenex_9 .cse5) (fp.geq v_prenex_9 .cse6) (fp.geq v_prenex_10 .cse6) (fp.leq v_prenex_10 .cse5) (not (fp.leq (fp.sub RNE (fp.add RNE (let ((.cse7 ((_ to_fp 11 53) RNE (/ 999.0 1000.0)))) (fp.mul RNE .cse7 (let ((.cse8 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE .cse7 .cse8) v_prenex_9) .cse8)))) v_prenex_10) v_prenex_9) ((_ to_fp 11 53) RNE 10000.0)))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-10-26 19:27:05,925 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_10 (_ FloatingPoint 11 53)) (v_prenex_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse1 (fp.neg .cse0))) (and (fp.leq v_prenex_9 .cse0) (fp.geq v_prenex_9 .cse1) (fp.geq v_prenex_10 .cse1) (fp.leq v_prenex_10 .cse0) (not (fp.leq (fp.sub RNE (fp.add RNE (let ((.cse2 ((_ to_fp 11 53) RNE (/ 999.0 1000.0)))) (fp.mul RNE .cse2 (let ((.cse3 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE .cse2 .cse3) v_prenex_9) .cse3)))) v_prenex_10) v_prenex_9) ((_ to_fp 11 53) RNE 10000.0))))))) (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse6 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse7 (fp.neg .cse6))) (and (not (fp.geq (fp.sub RNE (fp.add RNE (let ((.cse4 ((_ to_fp 11 53) RNE (/ 999.0 1000.0)))) (fp.mul RNE .cse4 (let ((.cse5 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE .cse4 .cse5) main_~E1~0) .cse5)))) main_~E0~0) main_~E1~0) (fp.neg ((_ to_fp 11 53) RNE 10000.0)))) (fp.leq main_~E0~0 .cse6) (fp.geq main_~E1~0 .cse7) (fp.leq main_~E1~0 .cse6) (fp.geq main_~E0~0 .cse7)))))) is different from false [2018-10-26 19:27:07,964 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_10 (_ FloatingPoint 11 53)) (v_prenex_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse1 (fp.neg .cse0))) (and (fp.leq v_prenex_9 .cse0) (fp.geq v_prenex_9 .cse1) (fp.geq v_prenex_10 .cse1) (fp.leq v_prenex_10 .cse0) (not (fp.leq (fp.sub RNE (fp.add RNE (let ((.cse2 ((_ to_fp 11 53) RNE (/ 999.0 1000.0)))) (fp.mul RNE .cse2 (let ((.cse3 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE .cse2 .cse3) v_prenex_9) .cse3)))) v_prenex_10) v_prenex_9) ((_ to_fp 11 53) RNE 10000.0))))))) (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse6 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse7 (fp.neg .cse6))) (and (not (fp.geq (fp.sub RNE (fp.add RNE (let ((.cse4 ((_ to_fp 11 53) RNE (/ 999.0 1000.0)))) (fp.mul RNE .cse4 (let ((.cse5 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE .cse4 .cse5) main_~E1~0) .cse5)))) main_~E0~0) main_~E1~0) (fp.neg ((_ to_fp 11 53) RNE 10000.0)))) (fp.leq main_~E0~0 .cse6) (fp.geq main_~E1~0 .cse7) (fp.leq main_~E1~0 .cse6) (fp.geq main_~E0~0 .cse7)))))) is different from true [2018-10-26 19:27:07,968 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2018-10-26 19:27:07,968 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 19:27:10,123 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) c_main_~E0~0) c_main_~E1~0)) (.cse1 ((_ to_fp 11 53) RNE 10000.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from false [2018-10-26 19:27:13,951 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_15 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (or (not (fp.leq v_prenex_15 .cse0)) (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) v_prenex_15) c_main_~E1~0) ((_ to_fp 11 53) RNE 10000.0)) (not (fp.geq v_prenex_15 (fp.neg .cse0)))))) (forall ((v_main_~E0~0_7 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 1.0))) (or (not (fp.leq v_main_~E0~0_7 .cse1)) (not (fp.geq v_main_~E0~0_7 (fp.neg .cse1))) (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) v_main_~E0~0_7) c_main_~E1~0) (fp.neg ((_ to_fp 11 53) RNE 10000.0))))))) is different from true [2018-10-26 19:27:16,064 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 11 53) RNE 10000.0))) (let ((.cse1 (not (fp.leq c_main_~S~0 .cse4))) (.cse2 (not (fp.geq c_main_~S~0 (fp.neg .cse4))))) (and (or (forall ((v_main_~E0~0_7 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (or (not (fp.leq v_main_~E0~0_7 .cse0)) (not (fp.geq v_main_~E0~0_7 (fp.neg .cse0))) (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) v_main_~E0~0_7) c_main_~E1~0) (fp.neg ((_ to_fp 11 53) RNE 10000.0)))))) .cse1 .cse2) (or (forall ((v_prenex_15 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) RNE 1.0))) (or (not (fp.leq v_prenex_15 .cse3)) (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) v_prenex_15) c_main_~E1~0) ((_ to_fp 11 53) RNE 10000.0)) (not (fp.geq v_prenex_15 (fp.neg .cse3)))))) .cse1 .cse2)))) is different from true [2018-10-26 19:27:16,079 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 19:27:16,080 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 19:27:16,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:27:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2018-10-26 19:27:28,422 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-26 19:27:28,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-26 19:27:28,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-26 19:27:28,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-26 19:27:28,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=87, Unknown=8, NotChecked=168, Total=306 [2018-10-26 19:27:28,423 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 13 states. [2018-10-26 19:28:04,313 WARN L179 SmtUtils]: Spent 18.40 s on a formula simplification that was a NOOP. DAG size: 28 [2018-10-26 19:28:08,511 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq c_main_~E1~0 (fp.neg .cse0)) (fp.leq c_main_~E1~0 .cse0) (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse2 (fp.neg .cse1))) (and (fp.leq main_~E0~0 .cse1) (fp.geq main_~E1~0 .cse2) (fp.leq main_~E1~0 .cse1) (fp.geq main_~E0~0 .cse2) (= (fp.sub RNE (fp.add RNE (let ((.cse3 ((_ to_fp 11 53) RNE (/ 999.0 1000.0)))) (fp.mul RNE .cse3 (let ((.cse4 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE .cse3 .cse4) main_~E1~0) .cse4)))) main_~E0~0) main_~E1~0) c_main_~S~0))))) (= (let ((.cse5 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) .cse5) c_main_~E1~0) .cse5)) c_main_~S~0))) is different from false [2018-10-26 19:28:10,597 WARN L832 $PredicateComparison]: unable to prove that (and (= |c___VERIFIER_assert_#in~cond| c___VERIFIER_assert_~cond) (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse4 (fp.neg .cse3))) (and (not (fp.geq (fp.sub RNE (fp.add RNE (let ((.cse1 ((_ to_fp 11 53) RNE (/ 999.0 1000.0)))) (fp.mul RNE .cse1 (let ((.cse2 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE .cse1 .cse2) main_~E1~0) .cse2)))) main_~E0~0) main_~E1~0) (fp.neg ((_ to_fp 11 53) RNE 10000.0)))) (fp.leq main_~E0~0 .cse3) (fp.geq main_~E1~0 .cse4) (fp.leq main_~E1~0 .cse3) (fp.geq main_~E0~0 .cse4)))))) (and .cse0 (exists ((v_prenex_10 (_ FloatingPoint 11 53)) (v_prenex_9 (_ FloatingPoint 11 53))) (let ((.cse5 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse6 (fp.neg .cse5))) (and (fp.leq v_prenex_9 .cse5) (fp.geq v_prenex_9 .cse6) (fp.geq v_prenex_10 .cse6) (fp.leq v_prenex_10 .cse5) (not (fp.leq (fp.sub RNE (fp.add RNE (let ((.cse7 ((_ to_fp 11 53) RNE (/ 999.0 1000.0)))) (fp.mul RNE .cse7 (let ((.cse8 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE .cse7 .cse8) v_prenex_9) .cse8)))) v_prenex_10) v_prenex_9) ((_ to_fp 11 53) RNE 10000.0)))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))))) is different from false [2018-10-26 19:28:14,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:28:14,350 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2018-10-26 19:28:14,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-26 19:28:14,352 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2018-10-26 19:28:14,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:28:14,353 INFO L225 Difference]: With dead ends: 55 [2018-10-26 19:28:14,353 INFO L226 Difference]: Without dead ends: 53 [2018-10-26 19:28:14,353 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 58.5s TimeCoverageRelationStatistics Valid=56, Invalid=121, Unknown=15, NotChecked=270, Total=462 [2018-10-26 19:28:14,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-10-26 19:28:14,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 36. [2018-10-26 19:28:14,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-26 19:28:14,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2018-10-26 19:28:14,370 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 23 [2018-10-26 19:28:14,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:28:14,371 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2018-10-26 19:28:14,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-26 19:28:14,371 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2018-10-26 19:28:14,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-26 19:28:14,372 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:28:14,372 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:28:14,372 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:28:14,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:28:14,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1001818126, now seen corresponding path program 2 times [2018-10-26 19:28:14,373 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:28:14,373 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 19:28:14,389 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-10-26 19:28:15,856 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-26 19:28:15,856 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 19:28:15,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:28:18,150 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53)) (v_main_~S~0_18 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse2 (fp.neg .cse1)) (.cse0 ((_ to_fp 11 53) RNE 10000.0))) (and (= (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_main_~S~0_18) main_~E0~0) main_~E1~0) c_main_~S~0) (fp.geq v_main_~S~0_18 (fp.neg .cse0)) (fp.leq main_~E0~0 .cse1) (fp.geq main_~E1~0 .cse2) (fp.leq main_~E1~0 .cse1) (fp.geq main_~E0~0 .cse2) (fp.leq v_main_~S~0_18 .cse0))))) is different from false [2018-10-26 19:28:20,189 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53)) (v_main_~S~0_18 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse2 (fp.neg .cse1)) (.cse0 ((_ to_fp 11 53) RNE 10000.0))) (and (= (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_main_~S~0_18) main_~E0~0) main_~E1~0) c_main_~S~0) (fp.geq v_main_~S~0_18 (fp.neg .cse0)) (fp.leq main_~E0~0 .cse1) (fp.geq main_~E1~0 .cse2) (fp.leq main_~E1~0 .cse1) (fp.geq main_~E0~0 .cse2) (fp.leq v_main_~S~0_18 .cse0))))) is different from true [2018-10-26 19:28:36,578 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((v_prenex_16 (_ FloatingPoint 11 53)) (v_prenex_17 (_ FloatingPoint 11 53)) (v_prenex_19 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse1 (fp.neg .cse2)) (.cse0 ((_ to_fp 11 53) RNE 10000.0))) (and (fp.leq v_prenex_19 .cse0) (fp.geq v_prenex_16 .cse1) (fp.geq v_prenex_17 .cse1) (fp.leq v_prenex_17 .cse2) (fp.leq v_prenex_16 .cse2) (fp.geq v_prenex_19 (fp.neg .cse0)) (not (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_prenex_19) v_prenex_17) v_prenex_16) .cse0)))))) .cse3) (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53)) (v_main_~S~0_18 (_ FloatingPoint 11 53))) (let ((.cse8 ((_ to_fp 11 53) RNE 10000.0)) (.cse5 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse6 (fp.neg .cse5)) (.cse7 (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_main_~S~0_18) main_~E0~0) main_~E1~0)) (.cse4 (fp.neg .cse8))) (and (fp.geq v_main_~S~0_18 .cse4) (fp.leq main_~E0~0 .cse5) (fp.geq main_~E1~0 .cse6) (fp.leq main_~E1~0 .cse5) (fp.geq main_~E0~0 .cse6) (fp.leq .cse7 .cse8) (fp.leq v_main_~S~0_18 .cse8) (fp.geq .cse7 .cse4)))))) (and (exists ((v_prenex_23 (_ FloatingPoint 11 53)) (v_prenex_21 (_ FloatingPoint 11 53)) (v_prenex_20 (_ FloatingPoint 11 53))) (let ((.cse9 ((_ to_fp 11 53) RNE 1.0)) (.cse12 ((_ to_fp 11 53) RNE 10000.0))) (let ((.cse10 (fp.neg .cse12)) (.cse11 (fp.neg .cse9))) (and (fp.leq v_prenex_20 .cse9) (fp.geq v_prenex_23 .cse10) (fp.geq v_prenex_20 .cse11) (fp.leq v_prenex_23 .cse12) (not (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_prenex_23) v_prenex_21) v_prenex_20) .cse10)) (fp.geq v_prenex_21 .cse11) (fp.leq v_prenex_21 .cse9))))) .cse3))) is different from false [2018-10-26 19:28:51,001 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse5 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53)) (v_main_~S~0_18 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) RNE 10000.0)) (.cse1 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse2 (fp.neg .cse1)) (.cse3 (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_main_~S~0_18) main_~E0~0) main_~E1~0)) (.cse0 (fp.neg .cse4))) (and (fp.geq v_main_~S~0_18 .cse0) (fp.leq main_~E0~0 .cse1) (fp.geq main_~E1~0 .cse2) (fp.leq main_~E1~0 .cse1) (fp.geq main_~E0~0 .cse2) (fp.leq .cse3 .cse4) (fp.leq v_main_~S~0_18 .cse4) (fp.geq .cse3 .cse0))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and .cse5 (exists ((v_prenex_16 (_ FloatingPoint 11 53)) (v_prenex_17 (_ FloatingPoint 11 53)) (v_prenex_19 (_ FloatingPoint 11 53))) (let ((.cse8 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse7 (fp.neg .cse8)) (.cse6 ((_ to_fp 11 53) RNE 10000.0))) (and (fp.leq v_prenex_19 .cse6) (fp.geq v_prenex_16 .cse7) (fp.geq v_prenex_17 .cse7) (fp.leq v_prenex_17 .cse8) (fp.leq v_prenex_16 .cse8) (fp.geq v_prenex_19 (fp.neg .cse6)) (not (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_prenex_19) v_prenex_17) v_prenex_16) .cse6))))))) (and .cse5 (exists ((v_prenex_23 (_ FloatingPoint 11 53)) (v_prenex_21 (_ FloatingPoint 11 53)) (v_prenex_20 (_ FloatingPoint 11 53))) (let ((.cse9 ((_ to_fp 11 53) RNE 1.0)) (.cse12 ((_ to_fp 11 53) RNE 10000.0))) (let ((.cse10 (fp.neg .cse12)) (.cse11 (fp.neg .cse9))) (and (fp.leq v_prenex_20 .cse9) (fp.geq v_prenex_23 .cse10) (fp.geq v_prenex_20 .cse11) (fp.leq v_prenex_23 .cse12) (not (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_prenex_23) v_prenex_21) v_prenex_20) .cse10)) (fp.geq v_prenex_21 .cse11) (fp.leq v_prenex_21 .cse9)))))))) is different from false [2018-10-26 19:29:01,291 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_16 (_ FloatingPoint 11 53)) (v_prenex_17 (_ FloatingPoint 11 53)) (v_prenex_19 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse1 (fp.neg .cse2)) (.cse0 ((_ to_fp 11 53) RNE 10000.0))) (and (fp.leq v_prenex_19 .cse0) (fp.geq v_prenex_16 .cse1) (fp.geq v_prenex_17 .cse1) (fp.leq v_prenex_17 .cse2) (fp.leq v_prenex_16 .cse2) (fp.geq v_prenex_19 (fp.neg .cse0)) (not (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_prenex_19) v_prenex_17) v_prenex_16) .cse0)))))) (exists ((v_prenex_23 (_ FloatingPoint 11 53)) (v_prenex_21 (_ FloatingPoint 11 53)) (v_prenex_20 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) RNE 1.0)) (.cse6 ((_ to_fp 11 53) RNE 10000.0))) (let ((.cse4 (fp.neg .cse6)) (.cse5 (fp.neg .cse3))) (and (fp.leq v_prenex_20 .cse3) (fp.geq v_prenex_23 .cse4) (fp.geq v_prenex_20 .cse5) (fp.leq v_prenex_23 .cse6) (not (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_prenex_23) v_prenex_21) v_prenex_20) .cse4)) (fp.geq v_prenex_21 .cse5) (fp.leq v_prenex_21 .cse3)))))) is different from false [2018-10-26 19:29:03,329 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_16 (_ FloatingPoint 11 53)) (v_prenex_17 (_ FloatingPoint 11 53)) (v_prenex_19 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse1 (fp.neg .cse2)) (.cse0 ((_ to_fp 11 53) RNE 10000.0))) (and (fp.leq v_prenex_19 .cse0) (fp.geq v_prenex_16 .cse1) (fp.geq v_prenex_17 .cse1) (fp.leq v_prenex_17 .cse2) (fp.leq v_prenex_16 .cse2) (fp.geq v_prenex_19 (fp.neg .cse0)) (not (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_prenex_19) v_prenex_17) v_prenex_16) .cse0)))))) (exists ((v_prenex_23 (_ FloatingPoint 11 53)) (v_prenex_21 (_ FloatingPoint 11 53)) (v_prenex_20 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) RNE 1.0)) (.cse6 ((_ to_fp 11 53) RNE 10000.0))) (let ((.cse4 (fp.neg .cse6)) (.cse5 (fp.neg .cse3))) (and (fp.leq v_prenex_20 .cse3) (fp.geq v_prenex_23 .cse4) (fp.geq v_prenex_20 .cse5) (fp.leq v_prenex_23 .cse6) (not (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_prenex_23) v_prenex_21) v_prenex_20) .cse4)) (fp.geq v_prenex_21 .cse5) (fp.leq v_prenex_21 .cse3)))))) is different from true [2018-10-26 19:29:03,337 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 3 not checked. [2018-10-26 19:29:03,337 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 19:29:05,447 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) c_main_~E0~0) c_main_~E1~0)) (.cse1 ((_ to_fp 11 53) RNE 10000.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from false [2018-10-26 19:29:07,488 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) c_main_~E0~0) c_main_~E1~0)) (.cse1 ((_ to_fp 11 53) RNE 10000.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from true [2018-10-26 19:29:09,565 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_main_~E0~0_8 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (or (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) v_main_~E0~0_8) c_main_~E1~0) (fp.neg ((_ to_fp 11 53) RNE 10000.0))) (not (fp.leq v_main_~E0~0_8 .cse0)) (not (fp.geq v_main_~E0~0_8 (fp.neg .cse0)))))) (forall ((v_prenex_24 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 1.0))) (or (not (fp.geq v_prenex_24 (fp.neg .cse1))) (not (fp.leq v_prenex_24 .cse1)) (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) c_main_~S~0) v_prenex_24) c_main_~E1~0) ((_ to_fp 11 53) RNE 10000.0)))))) is different from true [2018-10-26 19:29:11,676 WARN L832 $PredicateComparison]: unable to prove that (and (forall ((v_main_~E0~0_8 (_ FloatingPoint 11 53)) (main_~S~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 10000.0))) (let ((.cse1 ((_ to_fp 11 53) RNE 1.0)) (.cse0 (fp.neg .cse2))) (or (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) main_~S~0) v_main_~E0~0_8) c_main_~E1~0) .cse0) (not (fp.leq v_main_~E0~0_8 .cse1)) (not (fp.leq main_~S~0 .cse2)) (not (fp.geq v_main_~E0~0_8 (fp.neg .cse1))) (not (fp.geq main_~S~0 .cse0)))))) (forall ((v_prenex_26 (_ FloatingPoint 11 53)) (v_prenex_24 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) RNE 1.0)) (.cse3 ((_ to_fp 11 53) RNE 10000.0))) (or (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_prenex_26) v_prenex_24) c_main_~E1~0) .cse3) (not (fp.leq v_prenex_26 .cse3)) (not (fp.geq v_prenex_24 (fp.neg .cse4))) (not (fp.leq v_prenex_24 .cse4)) (not (fp.geq v_prenex_26 (fp.neg .cse3))))))) is different from false [2018-10-26 19:29:13,756 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_main_~E0~0_8 (_ FloatingPoint 11 53)) (main_~S~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 10000.0))) (let ((.cse1 ((_ to_fp 11 53) RNE 1.0)) (.cse0 (fp.neg .cse2))) (or (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) main_~S~0) v_main_~E0~0_8) c_main_~E1~0) .cse0) (not (fp.leq v_main_~E0~0_8 .cse1)) (not (fp.leq main_~S~0 .cse2)) (not (fp.geq v_main_~E0~0_8 (fp.neg .cse1))) (not (fp.geq main_~S~0 .cse0)))))) (forall ((v_prenex_26 (_ FloatingPoint 11 53)) (v_prenex_24 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) RNE 1.0)) (.cse3 ((_ to_fp 11 53) RNE 10000.0))) (or (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_prenex_26) v_prenex_24) c_main_~E1~0) .cse3) (not (fp.leq v_prenex_26 .cse3)) (not (fp.geq v_prenex_24 (fp.neg .cse4))) (not (fp.leq v_prenex_24 .cse4)) (not (fp.geq v_prenex_26 (fp.neg .cse3))))))) is different from true [2018-10-26 19:29:13,772 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 19:29:13,772 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 19:29:13,779 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-26 19:29:27,679 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-26 19:29:27,679 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2018-10-26 19:29:27,838 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-26 19:29:27,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-26 19:29:27,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-26 19:29:27,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-26 19:29:27,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=70, Unknown=11, NotChecked=154, Total=272 [2018-10-26 19:29:27,839 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 12 states. [2018-10-26 19:29:32,018 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.leq c_main_~E0~0 .cse0) (fp.geq c_main_~E0~0 (fp.neg .cse0)) (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53)) (v_main_~S~0_18 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse3 (fp.neg .cse2)) (.cse1 ((_ to_fp 11 53) RNE 10000.0))) (and (= (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_main_~S~0_18) main_~E0~0) main_~E1~0) c_main_~S~0) (fp.geq v_main_~S~0_18 (fp.neg .cse1)) (fp.leq main_~E0~0 .cse2) (fp.geq main_~E1~0 .cse3) (fp.leq main_~E1~0 .cse2) (fp.geq main_~E0~0 .cse3) (fp.leq v_main_~S~0_18 .cse1))))))) is different from false [2018-10-26 19:29:34,076 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq c_main_~E1~0 (fp.neg .cse0)) (fp.leq c_main_~E1~0 .cse0) (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53)) (v_main_~S~0_18 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse3 (fp.neg .cse2)) (.cse1 ((_ to_fp 11 53) RNE 10000.0))) (and (= (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_main_~S~0_18) main_~E0~0) main_~E1~0) c_main_~S~0) (fp.geq v_main_~S~0_18 (fp.neg .cse1)) (fp.leq main_~E0~0 .cse2) (fp.geq main_~E1~0 .cse3) (fp.leq main_~E1~0 .cse2) (fp.geq main_~E0~0 .cse3) (fp.leq v_main_~S~0_18 .cse1))))))) is different from false [2018-10-26 19:29:36,229 WARN L832 $PredicateComparison]: unable to prove that (and (= |c___VERIFIER_assert_#in~cond| c___VERIFIER_assert_~cond) (let ((.cse5 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53)) (v_main_~S~0_18 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) RNE 10000.0)) (.cse1 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse2 (fp.neg .cse1)) (.cse3 (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_main_~S~0_18) main_~E0~0) main_~E1~0)) (.cse0 (fp.neg .cse4))) (and (fp.geq v_main_~S~0_18 .cse0) (fp.leq main_~E0~0 .cse1) (fp.geq main_~E1~0 .cse2) (fp.leq main_~E1~0 .cse1) (fp.geq main_~E0~0 .cse2) (fp.leq .cse3 .cse4) (fp.leq v_main_~S~0_18 .cse4) (fp.geq .cse3 .cse0))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and .cse5 (exists ((v_prenex_16 (_ FloatingPoint 11 53)) (v_prenex_17 (_ FloatingPoint 11 53)) (v_prenex_19 (_ FloatingPoint 11 53))) (let ((.cse8 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse7 (fp.neg .cse8)) (.cse6 ((_ to_fp 11 53) RNE 10000.0))) (and (fp.leq v_prenex_19 .cse6) (fp.geq v_prenex_16 .cse7) (fp.geq v_prenex_17 .cse7) (fp.leq v_prenex_17 .cse8) (fp.leq v_prenex_16 .cse8) (fp.geq v_prenex_19 (fp.neg .cse6)) (not (fp.leq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_prenex_19) v_prenex_17) v_prenex_16) .cse6))))))) (and .cse5 (exists ((v_prenex_23 (_ FloatingPoint 11 53)) (v_prenex_21 (_ FloatingPoint 11 53)) (v_prenex_20 (_ FloatingPoint 11 53))) (let ((.cse9 ((_ to_fp 11 53) RNE 1.0)) (.cse12 ((_ to_fp 11 53) RNE 10000.0))) (let ((.cse10 (fp.neg .cse12)) (.cse11 (fp.neg .cse9))) (and (fp.leq v_prenex_20 .cse9) (fp.geq v_prenex_23 .cse10) (fp.geq v_prenex_20 .cse11) (fp.leq v_prenex_23 .cse12) (not (fp.geq (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_prenex_23) v_prenex_21) v_prenex_20) .cse10)) (fp.geq v_prenex_21 .cse11) (fp.leq v_prenex_21 .cse9))))))))) is different from false [2018-10-26 19:29:36,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:29:36,267 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2018-10-26 19:29:36,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 19:29:36,268 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2018-10-26 19:29:36,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:29:36,269 INFO L225 Difference]: With dead ends: 45 [2018-10-26 19:29:36,269 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 19:29:36,269 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 29.2s TimeCoverageRelationStatistics Valid=48, Invalid=88, Unknown=14, NotChecked=270, Total=420 [2018-10-26 19:29:36,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 19:29:36,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 19:29:36,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 19:29:36,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 19:29:36,270 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-10-26 19:29:36,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:29:36,271 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 19:29:36,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-26 19:29:36,271 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 19:29:36,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 19:29:36,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 19:31:30,389 WARN L179 SmtUtils]: Spent 1.90 m on a formula simplification. DAG size of input: 180 DAG size of output: 1 [2018-10-26 19:32:58,033 WARN L179 SmtUtils]: Spent 1.46 m on a formula simplification. DAG size of input: 56 DAG size of output: 37 [2018-10-26 19:32:58,206 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 23 [2018-10-26 19:32:58,208 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 19:32:58,208 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:32:58,208 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:32:58,208 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 19:32:58,208 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 19:32:58,208 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 19:32:58,208 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 15 39) the Hoare annotation is: true [2018-10-26 19:32:58,209 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 33) no Hoare annotation was computed. [2018-10-26 19:32:58,209 INFO L425 ceAbstractionStarter]: For program point L28-2(lines 28 33) no Hoare annotation was computed. [2018-10-26 19:32:58,209 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 15 39) no Hoare annotation was computed. [2018-10-26 19:32:58,209 INFO L425 ceAbstractionStarter]: For program point L23-1(lines 23 37) no Hoare annotation was computed. [2018-10-26 19:32:58,209 INFO L421 ceAbstractionStarter]: At program point L23-3(lines 23 37) the Hoare annotation is: (or (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse1 (fp.neg .cse0)) (.cse2 ((_ to_fp 11 53) RNE 10000.0))) (and (fp.leq main_~E0~0 .cse0) (fp.geq main_~E1~0 .cse1) (fp.leq main_~E1~0 .cse0) (fp.geq main_~E0~0 .cse1) (fp.geq main_~S~0 (fp.neg .cse2)) (fp.leq main_~S~0 .cse2)))) (let ((.cse3 ((_ to_fp 11 53) RNE (_ bv0 32)))) (and (= .cse3 main_~S~0) (= main_~E1~0 .cse3)))) [2018-10-26 19:32:58,209 INFO L425 ceAbstractionStarter]: For program point L23-4(lines 23 37) no Hoare annotation was computed. [2018-10-26 19:32:58,209 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 15 39) no Hoare annotation was computed. [2018-10-26 19:32:58,210 INFO L421 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (let ((.cse10 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse9 (fp.neg .cse10))) (let ((.cse0 (fp.leq main_~E0~0 .cse10)) (.cse1 (fp.geq main_~E1~0 .cse9)) (.cse2 (fp.leq main_~E1~0 .cse10)) (.cse3 (fp.geq main_~E0~0 .cse9))) (or (and .cse0 .cse1 .cse2 (= ((_ to_fp 11 53) RNE (_ bv0 32)) main_~S~0) .cse3 (exists ((main_~E0~0 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) RNE 1.0))) (and (fp.leq main_~E0~0 .cse4) (fp.geq main_~E0~0 (fp.neg .cse4)) (= (let ((.cse5 ((_ to_fp 11 53) RNE (_ bv0 32)))) (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) .cse5) main_~E0~0) .cse5)) main_~S~0))))) (and .cse0 .cse1 .cse2 .cse3 (exists ((main_~E1~0 (_ FloatingPoint 11 53)) (main_~E0~0 (_ FloatingPoint 11 53)) (v_main_~S~0_18 (_ FloatingPoint 11 53))) (let ((.cse7 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse8 (fp.neg .cse7)) (.cse6 ((_ to_fp 11 53) RNE 10000.0))) (and (= (fp.sub RNE (fp.add RNE (fp.mul RNE ((_ to_fp 11 53) RNE (/ 999.0 1000.0)) v_main_~S~0_18) main_~E0~0) main_~E1~0) main_~S~0) (fp.geq v_main_~S~0_18 (fp.neg .cse6)) (fp.leq main_~E0~0 .cse7) (fp.geq main_~E1~0 .cse8) (fp.leq main_~E1~0 .cse7) (fp.geq main_~E0~0 .cse8) (fp.leq v_main_~S~0_18 .cse6)))))))))) [2018-10-26 19:32:58,210 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 23 37) no Hoare annotation was computed. [2018-10-26 19:32:58,210 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 12) the Hoare annotation is: true [2018-10-26 19:32:58,210 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2018-10-26 19:32:58,210 INFO L425 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-10-26 19:32:58,210 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-10-26 19:32:58,210 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 12) no Hoare annotation was computed. [2018-10-26 19:32:58,210 INFO L425 ceAbstractionStarter]: For program point L12-3(line 12) no Hoare annotation was computed. [2018-10-26 19:32:58,219 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,220 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,220 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,220 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,220 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,221 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,221 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,221 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,225 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,225 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,225 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,226 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,226 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,226 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,226 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,226 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:32:58 BoogieIcfgContainer [2018-10-26 19:32:58,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:32:58,229 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:32:58,229 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:32:58,230 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:32:58,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:22:02" (3/4) ... [2018-10-26 19:32:58,238 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 19:32:58,245 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 19:32:58,246 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 19:32:58,246 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 19:32:58,251 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-10-26 19:32:58,251 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-10-26 19:32:58,251 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 19:32:58,297 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4a072b20-18da-44a9-b936-54c8d069019e/bin-2019/utaipan/witness.graphml [2018-10-26 19:32:58,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:32:58,299 INFO L168 Benchmark]: Toolchain (without parser) took 656730.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -134.4 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2018-10-26 19:32:58,299 INFO L168 Benchmark]: CDTParser took 0.45 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. [2018-10-26 19:32:58,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.34 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:32:58,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.31 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:32:58,301 INFO L168 Benchmark]: Boogie Preprocessor took 24.77 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:32:58,301 INFO L168 Benchmark]: RCFGBuilder took 953.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-10-26 19:32:58,304 INFO L168 Benchmark]: TraceAbstraction took 655402.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -5.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.5 MB). Peak memory consumption was 309.8 MB. Max. memory is 11.5 GB. [2018-10-26 19:32:58,304 INFO L168 Benchmark]: Witness Printer took 68.05 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. [2018-10-26 19:32:58,307 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 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 253.34 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 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 23.31 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.77 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 953.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 655402.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -5.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.5 MB). Peak memory consumption was 309.8 MB. Max. memory is 11.5 GB. * Witness Printer took 68.05 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant [2018-10-26 19:32:58,324 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,325 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,325 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,325 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,325 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,325 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,325 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,325 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,326 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,326 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,326 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,326 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,326 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,326 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,327 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:32:58,327 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: (((((~fp.leq~DOUBLE(E0, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0)) && ~fp.geq~DOUBLE(E1, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0)))) && ~fp.leq~DOUBLE(E1, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0))) && ~fp.geq~DOUBLE(E0, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0)))) && ~fp.geq~DOUBLE(S, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(RoundingMode_RNE, 10000.0)))) && ~fp.leq~DOUBLE(S, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 10000.0))) || (~to_fp~LONGDOUBLE(RoundingMode_RNE, 0bv32) == S && E1 == ~to_fp~LONGDOUBLE(RoundingMode_RNE, 0bv32)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 655.3s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 177.7s AutomataDifference, 0.0s DeadEndRemovalTime, 201.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 80 SDtfs, 65 SDslu, 326 SDs, 0 SdLazy, 152 SolverSat, 27 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 29.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 26 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 269.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=3, 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, 5 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 19 NumberOfFragments, 183 HoareAnnotationTreeSize, 11 FomulaSimplifications, 1199 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2980 FormulaSimplificationTreeSizeReductionInter, 201.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 35.5s SatisfiabilityAnalysisTime, 239.1s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 122 ConstructedInterpolants, 22 QuantifiedInterpolants, 64038 SizeOfPredicates, 30 NumberOfNonLiveVariables, 231 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 31/45 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...