./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/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 5d57b69a18e01217b153b00cc1c03d5a7a42828b ................................................................................................................................................................................................................................................ 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_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/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 5d57b69a18e01217b153b00cc1c03d5a7a42828b ................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 15:22:10,348 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:22:10,349 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:22:10,355 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:22:10,355 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:22:10,356 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:22:10,357 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:22:10,358 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:22:10,359 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:22:10,360 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:22:10,360 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:22:10,360 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:22:10,361 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:22:10,362 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:22:10,362 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:22:10,363 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:22:10,363 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:22:10,364 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:22:10,366 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:22:10,367 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:22:10,368 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:22:10,368 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:22:10,370 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:22:10,370 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:22:10,370 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:22:10,371 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:22:10,371 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:22:10,372 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:22:10,372 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:22:10,372 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:22:10,373 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:22:10,373 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:22:10,373 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:22:10,373 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:22:10,374 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:22:10,374 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:22:10,374 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 15:22:10,382 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:22:10,382 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:22:10,383 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 15:22:10,383 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 15:22:10,383 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 15:22:10,383 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 15:22:10,384 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 15:22:10,384 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 15:22:10,384 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 15:22:10,384 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 15:22:10,384 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 15:22:10,384 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 15:22:10,384 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 15:22:10,385 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:22:10,385 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:22:10,385 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 15:22:10,385 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:22:10,385 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:22:10,385 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 15:22:10,386 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 15:22:10,386 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 15:22:10,386 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:22:10,386 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:22:10,386 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 15:22:10,386 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:22:10,386 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:22:10,387 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 15:22:10,387 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 15:22:10,387 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:22:10,387 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:22:10,387 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 15:22:10,387 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 15:22:10,387 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 15:22:10,387 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 15:22:10,388 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 15:22:10,388 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 15:22:10,388 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_456da073-579d-4f6e-885d-3a438e886ccf/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 -> 5d57b69a18e01217b153b00cc1c03d5a7a42828b [2018-12-09 15:22:10,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:22:10,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:22:10,421 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:22:10,422 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:22:10,423 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:22:10,423 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-12-09 15:22:10,464 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/data/1c0e9aec3/33128a80c913452a9bdf84d1fa3dbde1/FLAGcbafe27d5 [2018-12-09 15:22:10,762 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:22:10,762 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-12-09 15:22:10,765 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/data/1c0e9aec3/33128a80c913452a9bdf84d1fa3dbde1/FLAGcbafe27d5 [2018-12-09 15:22:10,773 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/data/1c0e9aec3/33128a80c913452a9bdf84d1fa3dbde1 [2018-12-09 15:22:10,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:22:10,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:22:10,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:22:10,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:22:10,778 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:22:10,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:22:10" (1/1) ... [2018-12-09 15:22:10,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b4367c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:10, skipping insertion in model container [2018-12-09 15:22:10,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:22:10" (1/1) ... [2018-12-09 15:22:10,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:22:10,792 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:22:10,874 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:22:10,876 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:22:10,886 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:22:10,894 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:22:10,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:10 WrapperNode [2018-12-09 15:22:10,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:22:10,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:22:10,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:22:10,895 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:22:10,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:10" (1/1) ... [2018-12-09 15:22:10,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:10" (1/1) ... [2018-12-09 15:22:10,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:22:10,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:22:10,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:22:10,907 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:22:10,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:10" (1/1) ... [2018-12-09 15:22:10,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:10" (1/1) ... [2018-12-09 15:22:10,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:10" (1/1) ... [2018-12-09 15:22:10,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:10" (1/1) ... [2018-12-09 15:22:10,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:10" (1/1) ... [2018-12-09 15:22:10,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:10" (1/1) ... [2018-12-09 15:22:10,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:10" (1/1) ... [2018-12-09 15:22:10,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:22:10,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:22:10,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:22:10,955 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:22:10,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/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 [2018-12-09 15:22:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 15:22:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 15:22:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:22:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:22:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 15:22:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 15:22:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 15:22:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 15:22:11,070 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:22:11,071 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 15:22:11,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:22:11 BoogieIcfgContainer [2018-12-09 15:22:11,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:22:11,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 15:22:11,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 15:22:11,073 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 15:22:11,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:22:10" (1/3) ... [2018-12-09 15:22:11,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6323d3ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:22:11, skipping insertion in model container [2018-12-09 15:22:11,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:10" (2/3) ... [2018-12-09 15:22:11,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6323d3ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:22:11, skipping insertion in model container [2018-12-09 15:22:11,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:22:11" (3/3) ... [2018-12-09 15:22:11,076 INFO L112 eAbstractionObserver]: Analyzing ICFG loop_true-unreach-call.c [2018-12-09 15:22:11,082 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 15:22:11,088 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 15:22:11,102 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 15:22:11,128 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 15:22:11,128 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 15:22:11,128 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 15:22:11,128 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:22:11,128 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:22:11,128 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 15:22:11,128 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:22:11,128 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 15:22:11,138 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-09 15:22:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 15:22:11,142 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:22:11,143 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:22:11,144 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:22:11,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:22:11,147 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-12-09 15:22:11,148 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:22:11,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:22:11,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:22:11,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:22:11,177 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:22:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:22:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:22:11,213 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 15:22:11,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:22:11 BoogieIcfgContainer [2018-12-09 15:22:11,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 15:22:11,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:22:11,227 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:22:11,227 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:22:11,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:22:11" (3/4) ... [2018-12-09 15:22:11,229 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 15:22:11,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:22:11,230 INFO L168 Benchmark]: Toolchain (without parser) took 455.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 948.6 MB in the beginning and 1.1 GB in the end (delta: -160.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:22:11,231 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:22:11,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 119.18 ms. Allocated memory is still 1.0 GB. Free memory was 948.6 MB in the beginning and 937.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-09 15:22:11,232 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.64 ms. Allocated memory is still 1.0 GB. Free memory is still 937.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:22:11,232 INFO L168 Benchmark]: Boogie Preprocessor took 42.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -200.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-09 15:22:11,232 INFO L168 Benchmark]: RCFGBuilder took 120.89 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-12-09 15:22:11,233 INFO L168 Benchmark]: TraceAbstraction took 154.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-09 15:22:11,233 INFO L168 Benchmark]: Witness Printer took 2.97 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. [2018-12-09 15:22:11,235 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 119.18 ms. Allocated memory is still 1.0 GB. Free memory was 948.6 MB in the beginning and 937.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.64 ms. Allocated memory is still 1.0 GB. Free memory is still 937.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -200.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 120.89 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 154.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.97 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: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 18, overapproximation of someBinaryDOUBLEComparisonOperation at line 18. Possible FailurePath: [L6] float x, y, z; [L8] x = 1.f [L9] y = 1e7 [L10] z = 42.f VAL [x=1, y=10000000, z=42] [L12] COND FALSE !(x < y) VAL [x=1, y=10000000, z=42] [L18] CALL __VERIFIER_assert(z >= 0.f && z <= 1e8) VAL [\old(cond)=0] [L2] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L2] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 15:22:12,596 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:22:12,597 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:22:12,603 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:22:12,603 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:22:12,604 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:22:12,604 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:22:12,605 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:22:12,606 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:22:12,606 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:22:12,606 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:22:12,607 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:22:12,607 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:22:12,607 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:22:12,608 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:22:12,608 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:22:12,609 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:22:12,610 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:22:12,610 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:22:12,611 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:22:12,612 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:22:12,612 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:22:12,613 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:22:12,613 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:22:12,614 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:22:12,614 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:22:12,614 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:22:12,615 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:22:12,615 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:22:12,616 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:22:12,616 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:22:12,616 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:22:12,616 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:22:12,616 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:22:12,617 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:22:12,617 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:22:12,617 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 15:22:12,624 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:22:12,624 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:22:12,625 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 15:22:12,625 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 15:22:12,625 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 15:22:12,625 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 15:22:12,625 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 15:22:12,625 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 15:22:12,625 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 15:22:12,626 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 15:22:12,626 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:22:12,626 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:22:12,626 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:22:12,626 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:22:12,626 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 15:22:12,626 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 15:22:12,627 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 15:22:12,627 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 15:22:12,627 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 15:22:12,627 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:22:12,627 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:22:12,627 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 15:22:12,627 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 15:22:12,627 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:22:12,627 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:22:12,627 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 15:22:12,627 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 15:22:12,628 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:22:12,628 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:22:12,628 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 15:22:12,628 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 15:22:12,628 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 15:22:12,628 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 15:22:12,628 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 15:22:12,628 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 15:22:12,628 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_456da073-579d-4f6e-885d-3a438e886ccf/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 -> 5d57b69a18e01217b153b00cc1c03d5a7a42828b [2018-12-09 15:22:12,645 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:22:12,652 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:22:12,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:22:12,655 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:22:12,656 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:22:12,656 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-12-09 15:22:12,691 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/data/804c84ad4/830f661a9c6b411ca10ef6db24f070c7/FLAGff7e1b9e6 [2018-12-09 15:22:13,159 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:22:13,160 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-12-09 15:22:13,164 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/data/804c84ad4/830f661a9c6b411ca10ef6db24f070c7/FLAGff7e1b9e6 [2018-12-09 15:22:13,172 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/data/804c84ad4/830f661a9c6b411ca10ef6db24f070c7 [2018-12-09 15:22:13,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:22:13,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:22:13,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:22:13,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:22:13,178 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:22:13,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:22:13" (1/1) ... [2018-12-09 15:22:13,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f4428e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:13, skipping insertion in model container [2018-12-09 15:22:13,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:22:13" (1/1) ... [2018-12-09 15:22:13,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:22:13,194 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:22:13,287 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:22:13,293 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:22:13,304 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:22:13,315 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:22:13,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:13 WrapperNode [2018-12-09 15:22:13,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:22:13,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:22:13,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:22:13,317 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:22:13,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:13" (1/1) ... [2018-12-09 15:22:13,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:13" (1/1) ... [2018-12-09 15:22:13,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:22:13,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:22:13,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:22:13,332 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:22:13,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:13" (1/1) ... [2018-12-09 15:22:13,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:13" (1/1) ... [2018-12-09 15:22:13,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:13" (1/1) ... [2018-12-09 15:22:13,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:13" (1/1) ... [2018-12-09 15:22:13,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:13" (1/1) ... [2018-12-09 15:22:13,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:13" (1/1) ... [2018-12-09 15:22:13,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:13" (1/1) ... [2018-12-09 15:22:13,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:22:13,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:22:13,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:22:13,347 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:22:13,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/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 [2018-12-09 15:22:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 15:22:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 15:22:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:22:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:22:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 15:22:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 15:22:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 15:22:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 15:22:13,935 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:22:13,936 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 15:22:13,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:22:13 BoogieIcfgContainer [2018-12-09 15:22:13,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:22:13,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 15:22:13,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 15:22:13,938 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 15:22:13,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:22:13" (1/3) ... [2018-12-09 15:22:13,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1409b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:22:13, skipping insertion in model container [2018-12-09 15:22:13,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:22:13" (2/3) ... [2018-12-09 15:22:13,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1409b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:22:13, skipping insertion in model container [2018-12-09 15:22:13,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:22:13" (3/3) ... [2018-12-09 15:22:13,940 INFO L112 eAbstractionObserver]: Analyzing ICFG loop_true-unreach-call.c [2018-12-09 15:22:13,945 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 15:22:13,950 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 15:22:13,958 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 15:22:13,977 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 15:22:13,977 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 15:22:13,977 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 15:22:13,977 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 15:22:13,977 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:22:13,977 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:22:13,977 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 15:22:13,977 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:22:13,977 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 15:22:13,988 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-09 15:22:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 15:22:13,991 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:22:13,992 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:22:13,993 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:22:13,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:22:13,996 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-12-09 15:22:13,998 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:22:13,998 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 15:22:14,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:22:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:22:14,031 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:22:14,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:22:14,065 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 15:22:14,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:22:14,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 15:22:14,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 15:22:14,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 15:22:14,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 15:22:14,085 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-12-09 15:22:14,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:22:14,323 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-12-09 15:22:14,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 15:22:14,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-09 15:22:14,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:22:14,329 INFO L225 Difference]: With dead ends: 31 [2018-12-09 15:22:14,329 INFO L226 Difference]: Without dead ends: 12 [2018-12-09 15:22:14,331 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 15:22:14,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-09 15:22:14,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-09 15:22:14,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-09 15:22:14,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-12-09 15:22:14,352 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-12-09 15:22:14,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:22:14,352 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-12-09 15:22:14,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 15:22:14,352 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-12-09 15:22:14,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 15:22:14,353 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:22:14,353 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:22:14,353 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:22:14,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:22:14,353 INFO L82 PathProgramCache]: Analyzing trace with hash -429188558, now seen corresponding path program 1 times [2018-12-09 15:22:14,353 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:22:14,353 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 15:22:14,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:22:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:22:14,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:22:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:22:14,455 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:22:17,617 WARN L180 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-09 15:22:17,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:22:17,631 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:22:17,631 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:22:17,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:22:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:22:18,044 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:22:18,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:22:18,819 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:22:20,506 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-12-09 15:22:27,646 WARN L180 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-09 15:22:27,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:22:27,671 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-09 15:22:27,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 6, 6] total 14 [2018-12-09 15:22:27,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 15:22:27,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 15:22:27,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=145, Unknown=2, NotChecked=0, Total=182 [2018-12-09 15:22:27,673 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 14 states. [2018-12-09 15:22:56,119 WARN L180 SmtUtils]: Spent 15.83 s on a formula simplification. DAG size of input: 21 DAG size of output: 17 [2018-12-09 15:23:03,002 WARN L180 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-12-09 15:23:17,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:23:17,846 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2018-12-09 15:23:17,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 15:23:17,846 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 11 [2018-12-09 15:23:17,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:23:17,847 INFO L225 Difference]: With dead ends: 24 [2018-12-09 15:23:17,847 INFO L226 Difference]: Without dead ends: 15 [2018-12-09 15:23:17,848 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 42.7s TimeCoverageRelationStatistics Valid=72, Invalid=267, Unknown=3, NotChecked=0, Total=342 [2018-12-09 15:23:17,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-09 15:23:17,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-09 15:23:17,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-09 15:23:17,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-12-09 15:23:17,851 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2018-12-09 15:23:17,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:23:17,851 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-12-09 15:23:17,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 15:23:17,851 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-12-09 15:23:17,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 15:23:17,852 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:23:17,852 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:23:17,852 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:23:17,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:23:17,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1090549245, now seen corresponding path program 2 times [2018-12-09 15:23:17,853 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 15:23:17,853 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 15:23:17,856 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-09 15:23:18,076 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-09 15:23:18,076 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 15:23:18,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:23:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:23:18,174 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:23:19,092 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-12-09 15:23:25,774 WARN L180 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-09 15:23:42,519 WARN L180 SmtUtils]: Spent 3.29 s on a formula simplification that was a NOOP. DAG size: 13 [2018-12-09 15:24:13,926 WARN L180 SmtUtils]: Spent 6.99 s on a formula simplification that was a NOOP. DAG size: 14 [2018-12-09 15:24:17,257 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven c_main_~z~0 .cse1) .cse1) .cse1) .cse1)))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)))) is different from true [2018-12-09 15:24:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 3 times theorem prover too weak. 0 trivial. 4 not checked. [2018-12-09 15:24:17,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:24:17,276 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:24:17,283 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-09 15:24:27,046 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-09 15:24:27,046 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 15:24:27,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:24:38,283 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:24:38,283 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:24:51,563 WARN L180 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 11 [2018-12-09 15:24:54,296 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (let ((.cse0 (fp.add roundNearestTiesToEven c_main_~x~0 .cse2)) (.cse1 (fp.sub roundNearestTiesToEven c_main_~y~0 .cse2))) (or (not (fp.lt .cse0 .cse1)) (fp.lt (fp.add roundNearestTiesToEven .cse0 .cse2) (fp.sub roundNearestTiesToEven .cse1 .cse2)) (not (fp.lt c_main_~x~0 c_main_~y~0))))) is different from true [2018-12-09 15:24:56,319 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (let ((.cse1 (fp.sub roundNearestTiesToEven c_main_~y~0 .cse3)) (.cse0 (fp.add roundNearestTiesToEven c_main_~x~0 .cse3))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse0 .cse3)) (.cse4 (fp.sub roundNearestTiesToEven .cse1 .cse3))) (or (not (fp.lt .cse0 .cse1)) (fp.lt (fp.add roundNearestTiesToEven .cse2 .cse3) (fp.sub roundNearestTiesToEven .cse4 .cse3)) (not (fp.lt c_main_~x~0 c_main_~y~0)) (not (fp.lt .cse2 .cse4)))))) is different from false [2018-12-09 15:24:58,341 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (let ((.cse1 (fp.sub roundNearestTiesToEven c_main_~y~0 .cse3)) (.cse0 (fp.add roundNearestTiesToEven c_main_~x~0 .cse3))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse0 .cse3)) (.cse4 (fp.sub roundNearestTiesToEven .cse1 .cse3))) (or (not (fp.lt .cse0 .cse1)) (fp.lt (fp.add roundNearestTiesToEven .cse2 .cse3) (fp.sub roundNearestTiesToEven .cse4 .cse3)) (not (fp.lt c_main_~x~0 c_main_~y~0)) (not (fp.lt .cse2 .cse4)))))) is different from true [2018-12-09 15:25:00,368 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (let ((.cse0 (fp.add roundNearestTiesToEven c_main_~x~0 .cse3)) (.cse1 (fp.sub roundNearestTiesToEven c_main_~y~0 .cse3))) (let ((.cse6 (fp.sub roundNearestTiesToEven .cse1 .cse3)) (.cse5 (fp.add roundNearestTiesToEven .cse0 .cse3))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse5 .cse3)) (.cse4 (fp.sub roundNearestTiesToEven .cse6 .cse3))) (or (not (fp.lt .cse0 .cse1)) (fp.lt (fp.add roundNearestTiesToEven .cse2 .cse3) (fp.sub roundNearestTiesToEven .cse4 .cse3)) (not (fp.lt c_main_~x~0 c_main_~y~0)) (not (fp.lt .cse5 .cse6)) (not (fp.lt .cse2 .cse4))))))) is different from false [2018-12-09 15:25:02,399 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (let ((.cse0 (fp.add roundNearestTiesToEven c_main_~x~0 .cse3)) (.cse1 (fp.sub roundNearestTiesToEven c_main_~y~0 .cse3))) (let ((.cse6 (fp.sub roundNearestTiesToEven .cse1 .cse3)) (.cse5 (fp.add roundNearestTiesToEven .cse0 .cse3))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse5 .cse3)) (.cse4 (fp.sub roundNearestTiesToEven .cse6 .cse3))) (or (not (fp.lt .cse0 .cse1)) (fp.lt (fp.add roundNearestTiesToEven .cse2 .cse3) (fp.sub roundNearestTiesToEven .cse4 .cse3)) (not (fp.lt c_main_~x~0 c_main_~y~0)) (not (fp.lt .cse5 .cse6)) (not (fp.lt .cse2 .cse4))))))) is different from true [2018-12-09 15:25:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2018-12-09 15:25:02,443 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-09 15:25:02,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 7, 7] total 26 [2018-12-09 15:25:02,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-12-09 15:25:02,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-12-09 15:25:02,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=382, Unknown=12, NotChecked=172, Total=650 [2018-12-09 15:25:02,445 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 26 states. [2018-12-09 15:25:04,501 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (let ((.cse7 (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven c_main_~z~0 .cse3) .cse3) .cse3) .cse3))) (and (= c_main_~z~0 ((_ to_fp 8 24) roundNearestTiesToEven 42.0)) (let ((.cse0 (fp.add roundNearestTiesToEven c_main_~x~0 .cse3)) (.cse1 (fp.sub roundNearestTiesToEven c_main_~y~0 .cse3))) (let ((.cse6 (fp.sub roundNearestTiesToEven .cse1 .cse3)) (.cse5 (fp.add roundNearestTiesToEven .cse0 .cse3))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse5 .cse3)) (.cse4 (fp.sub roundNearestTiesToEven .cse6 .cse3))) (or (not (fp.lt .cse0 .cse1)) (fp.lt (fp.add roundNearestTiesToEven .cse2 .cse3) (fp.sub roundNearestTiesToEven .cse4 .cse3)) (not (fp.lt c_main_~x~0 c_main_~y~0)) (not (fp.lt .cse5 .cse6)) (not (fp.lt .cse2 .cse4)))))) (fp.geq .cse7 (_ +zero 8 24)) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 10000000.0)) c_main_~y~0) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse7) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (= .cse3 c_main_~x~0)))) is different from true [2018-12-09 15:25:07,436 WARN L180 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 32 DAG size of output: 18 [2018-12-09 15:25:12,564 WARN L180 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2018-12-09 15:25:16,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:25:16,790 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2018-12-09 15:25:16,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:25:16,790 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 14 [2018-12-09 15:25:16,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:25:16,791 INFO L225 Difference]: With dead ends: 15 [2018-12-09 15:25:16,791 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 15:25:16,791 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 102.1s TimeCoverageRelationStatistics Valid=126, Invalid=531, Unknown=13, NotChecked=260, Total=930 [2018-12-09 15:25:16,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 15:25:16,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 15:25:16,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 15:25:16,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 15:25:16,792 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-12-09 15:25:16,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:25:16,792 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:25:16,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-12-09 15:25:16,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 15:25:16,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 15:25:16,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 15:25:17,195 WARN L180 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-12-09 15:25:38,314 WARN L180 SmtUtils]: Spent 21.12 s on a formula simplification. DAG size of input: 71 DAG size of output: 9 [2018-12-09 15:25:38,316 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 15:25:38,316 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 15:25:38,316 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 15:25:38,316 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 15:25:38,316 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 15:25:38,316 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 15:25:38,316 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 4 20) the Hoare annotation is: true [2018-12-09 15:25:38,316 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 4 20) no Hoare annotation was computed. [2018-12-09 15:25:38,316 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-12-09 15:25:38,317 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 4 20) no Hoare annotation was computed. [2018-12-09 15:25:38,317 INFO L444 ceAbstractionStarter]: At program point L12-2(lines 12 16) the Hoare annotation is: (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven main_~z~0) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (fp.geq main_~z~0 (_ +zero 8 24))) [2018-12-09 15:25:38,317 INFO L444 ceAbstractionStarter]: At program point L12-3(lines 12 16) the Hoare annotation is: (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven main_~z~0) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (fp.geq main_~z~0 (_ +zero 8 24))) [2018-12-09 15:25:38,317 INFO L448 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2018-12-09 15:25:38,317 INFO L448 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2018-12-09 15:25:38,317 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2018-12-09 15:25:38,317 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2018-12-09 15:25:38,317 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2018-12-09 15:25:38,317 INFO L448 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2018-12-09 15:25:38,322 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:25:38,322 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:25:38,325 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:25:38,325 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:25:38,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:25:38 BoogieIcfgContainer [2018-12-09 15:25:38,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 15:25:38,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:25:38,327 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:25:38,327 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:25:38,327 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:22:13" (3/4) ... [2018-12-09 15:25:38,329 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 15:25:38,333 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 15:25:38,333 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 15:25:38,333 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-09 15:25:38,336 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-09 15:25:38,336 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 15:25:38,336 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 15:25:38,359 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_456da073-579d-4f6e-885d-3a438e886ccf/bin-2019/utaipan/witness.graphml [2018-12-09 15:25:38,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:25:38,360 INFO L168 Benchmark]: Toolchain (without parser) took 205185.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 943.4 MB in the beginning and 898.8 MB in the end (delta: 44.6 MB). Peak memory consumption was 176.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:25:38,360 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:25:38,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.74 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:25:38,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.71 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:25:38,361 INFO L168 Benchmark]: Boogie Preprocessor took 15.16 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 15:25:38,361 INFO L168 Benchmark]: RCFGBuilder took 589.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -180.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-09 15:25:38,361 INFO L168 Benchmark]: TraceAbstraction took 204389.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 898.8 MB in the end (delta: 208.6 MB). Peak memory consumption was 208.6 MB. Max. memory is 11.5 GB. [2018-12-09 15:25:38,361 INFO L168 Benchmark]: Witness Printer took 32.65 ms. Allocated memory is still 1.2 GB. Free memory is still 898.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:25:38,363 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.74 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 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 14.71 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.16 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 589.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -180.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 204389.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 898.8 MB in the end (delta: 208.6 MB). Peak memory consumption was 208.6 MB. Max. memory is 11.5 GB. * Witness Printer took 32.65 ms. Allocated memory is still 1.2 GB. Free memory is still 898.8 MB. 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 ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 12]: Loop Invariant [2018-12-09 15:25:38,366 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:25:38,366 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:25:38,366 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 15:25:38,366 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.leq~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, z), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E8)) && ~fp.geq~FLOAT(z, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 204.3s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 64.7s AutomataDifference, 0.0s DeadEndRemovalTime, 21.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 SDtfs, 3 SDslu, 157 SDs, 0 SdLazy, 85 SolverSat, 18 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 26.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 61 SyntacticMatches, 7 SemanticMatches, 47 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 144.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 27 HoareAnnotationTreeSize, 10 FomulaSimplifications, 150 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 320 FormulaSimplificationTreeSizeReductionInter, 21.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 10.4s SatisfiabilityAnalysisTime, 107.4s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 11371 SizeOfPredicates, 11 NumberOfNonLiveVariables, 140 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 3/44 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...