./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/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 0d806ca1b262345211037ccd3e4a22cabffa047b ................................................................................................................................................................................................................................................................................................................ 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_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/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 0d806ca1b262345211037ccd3e4a22cabffa047b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:46:59,348 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:46:59,349 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:46:59,355 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:46:59,355 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:46:59,356 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:46:59,357 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:46:59,358 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:46:59,359 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:46:59,360 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:46:59,360 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:46:59,360 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:46:59,361 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:46:59,362 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:46:59,363 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:46:59,363 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:46:59,364 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:46:59,365 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:46:59,366 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:46:59,367 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:46:59,368 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:46:59,369 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:46:59,370 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:46:59,371 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:46:59,371 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:46:59,371 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:46:59,372 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:46:59,372 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:46:59,373 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:46:59,373 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:46:59,373 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:46:59,374 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:46:59,374 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:46:59,374 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:46:59,375 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:46:59,375 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:46:59,376 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 10:46:59,383 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:46:59,383 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:46:59,383 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:46:59,383 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:46:59,384 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:46:59,384 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:46:59,384 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:46:59,384 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:46:59,384 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:46:59,384 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:46:59,384 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:46:59,384 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:46:59,384 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:46:59,385 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:46:59,385 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:46:59,385 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:46:59,385 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:46:59,385 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:46:59,385 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:46:59,385 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:46:59,386 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:46:59,386 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:46:59,386 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:46:59,386 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:46:59,386 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:46:59,386 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:46:59,386 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:46:59,386 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:46:59,387 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:46:59,387 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:46:59,387 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:46:59,387 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:46:59,387 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:46:59,387 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:46:59,387 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:46:59,388 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:46:59,388 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:46:59,388 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_1e995e0d-8544-4929-805e-43e35cef5f8d/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 -> 0d806ca1b262345211037ccd3e4a22cabffa047b [2018-11-18 10:46:59,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:46:59,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:46:59,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:46:59,426 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:46:59,426 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:46:59,426 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c [2018-11-18 10:46:59,473 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/data/49853f4a1/04d0b80272934ea78a1aa76af67be953/FLAGbcce38958 [2018-11-18 10:46:59,814 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:46:59,814 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c [2018-11-18 10:46:59,820 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/data/49853f4a1/04d0b80272934ea78a1aa76af67be953/FLAGbcce38958 [2018-11-18 10:47:00,231 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/data/49853f4a1/04d0b80272934ea78a1aa76af67be953 [2018-11-18 10:47:00,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:47:00,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:47:00,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:47:00,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:47:00,237 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:47:00,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:47:00" (1/1) ... [2018-11-18 10:47:00,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb044c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:00, skipping insertion in model container [2018-11-18 10:47:00,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:47:00" (1/1) ... [2018-11-18 10:47:00,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:47:00,263 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:47:00,376 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:47:00,378 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:47:00,399 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:47:00,414 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:47:00,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:00 WrapperNode [2018-11-18 10:47:00,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:47:00,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:47:00,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:47:00,415 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:47:00,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:00" (1/1) ... [2018-11-18 10:47:00,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:00" (1/1) ... [2018-11-18 10:47:00,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:47:00,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:47:00,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:47:00,431 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:47:00,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:00" (1/1) ... [2018-11-18 10:47:00,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:00" (1/1) ... [2018-11-18 10:47:00,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:00" (1/1) ... [2018-11-18 10:47:00,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:00" (1/1) ... [2018-11-18 10:47:00,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:00" (1/1) ... [2018-11-18 10:47:00,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:00" (1/1) ... [2018-11-18 10:47:00,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:00" (1/1) ... [2018-11-18 10:47:00,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:47:00,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:47:00,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:47:00,491 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:47:00,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:47:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-11-18 10:47:00,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-11-18 10:47:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:47:00,527 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:47:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 10:47:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:47:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:47:00,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:47:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 10:47:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:47:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:47:00,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:47:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:47:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:47:00,706 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:47:00,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:47:00 BoogieIcfgContainer [2018-11-18 10:47:00,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:47:00,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:47:00,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:47:00,710 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:47:00,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:47:00" (1/3) ... [2018-11-18 10:47:00,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d159c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:47:00, skipping insertion in model container [2018-11-18 10:47:00,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:00" (2/3) ... [2018-11-18 10:47:00,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d159c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:47:00, skipping insertion in model container [2018-11-18 10:47:00,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:47:00" (3/3) ... [2018-11-18 10:47:00,713 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b_true-unreach-call.c [2018-11-18 10:47:00,718 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:47:00,724 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:47:00,735 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:47:00,757 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:47:00,757 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:47:00,757 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:47:00,757 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:47:00,757 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:47:00,757 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:47:00,758 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:47:00,758 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:47:00,768 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-18 10:47:00,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 10:47:00,772 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:47:00,773 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:47:00,774 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:47:00,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:47:00,778 INFO L82 PathProgramCache]: Analyzing trace with hash 931409669, now seen corresponding path program 1 times [2018-11-18 10:47:00,779 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:47:00,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:47:00,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:47:00,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:47:00,810 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:47:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:47:00,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:47:00,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:47:00,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:47:00,864 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:47:00,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:47:00,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:47:00,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:47:00,877 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-18 10:47:00,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:47:00,890 INFO L93 Difference]: Finished difference Result 76 states and 114 transitions. [2018-11-18 10:47:00,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:47:00,891 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 10:47:00,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:47:00,897 INFO L225 Difference]: With dead ends: 76 [2018-11-18 10:47:00,897 INFO L226 Difference]: Without dead ends: 38 [2018-11-18 10:47:00,899 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:47:00,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-18 10:47:00,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-18 10:47:00,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 10:47:00,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2018-11-18 10:47:00,927 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 18 [2018-11-18 10:47:00,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:47:00,927 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2018-11-18 10:47:00,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:47:00,927 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2018-11-18 10:47:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 10:47:00,928 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:47:00,928 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:47:00,928 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:47:00,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:47:00,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1707462651, now seen corresponding path program 1 times [2018-11-18 10:47:00,929 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:47:00,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:47:00,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:47:00,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:47:00,930 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:47:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:47:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:47:00,987 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 10:47:01,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:47:01 BoogieIcfgContainer [2018-11-18 10:47:01,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:47:01,005 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:47:01,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:47:01,005 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:47:01,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:47:00" (3/4) ... [2018-11-18 10:47:01,008 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 10:47:01,008 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:47:01,009 INFO L168 Benchmark]: Toolchain (without parser) took 775.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -123.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:47:01,010 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:47:01,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.38 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 945.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:47:01,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.45 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:47:01,011 INFO L168 Benchmark]: Boogie Preprocessor took 59.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -183.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:47:01,012 INFO L168 Benchmark]: RCFGBuilder took 216.53 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:47:01,012 INFO L168 Benchmark]: TraceAbstraction took 297.36 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:47:01,012 INFO L168 Benchmark]: Witness Printer took 3.05 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. [2018-11-18 10:47:01,016 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.38 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 945.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.45 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -183.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 216.53 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 297.36 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.05 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.plugins.generator.traceabstraction: - UnprovableResult [Line: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 95. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=10737418243, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double x = 0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L92] CALL, EXPR ceil_double(x) VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L23] FCALL ieee_double_shape_type ew_u; [L24] FCALL ew_u.value = (x) [L25] EXPR, FCALL ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR, FCALL ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L27] COND FALSE !(0) VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=0] [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=0] [L29] COND TRUE j0 < 20 VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=0] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=0] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] RET return x; VAL [\old(x)=0, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=0] [L92] EXPR ceil_double(x) VAL [ceil_double(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L92] double res = ceil_double(x); [L95] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] [L96] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 0.1.23-5842f4b [2018-11-18 10:47:02,421 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:47:02,423 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:47:02,431 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:47:02,431 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:47:02,432 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:47:02,433 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:47:02,434 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:47:02,435 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:47:02,436 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:47:02,436 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:47:02,437 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:47:02,437 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:47:02,438 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:47:02,439 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:47:02,440 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:47:02,440 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:47:02,442 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:47:02,443 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:47:02,444 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:47:02,445 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:47:02,446 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:47:02,448 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:47:02,448 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:47:02,448 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:47:02,449 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:47:02,450 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:47:02,451 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:47:02,451 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:47:02,452 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:47:02,452 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:47:02,452 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:47:02,452 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:47:02,453 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:47:02,453 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:47:02,454 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:47:02,454 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 10:47:02,465 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:47:02,465 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:47:02,466 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:47:02,466 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:47:02,466 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:47:02,466 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:47:02,467 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:47:02,467 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:47:02,467 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:47:02,467 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:47:02,468 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:47:02,468 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:47:02,468 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:47:02,468 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:47:02,468 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:47:02,468 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:47:02,468 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:47:02,469 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 10:47:02,469 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 10:47:02,469 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:47:02,469 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:47:02,469 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:47:02,469 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:47:02,469 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:47:02,469 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:47:02,470 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:47:02,470 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:47:02,470 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:47:02,470 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:47:02,472 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:47:02,472 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:47:02,472 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 10:47:02,473 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:47:02,473 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 10:47:02,473 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 10:47:02,473 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_1e995e0d-8544-4929-805e-43e35cef5f8d/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 -> 0d806ca1b262345211037ccd3e4a22cabffa047b [2018-11-18 10:47:02,501 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:47:02,510 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:47:02,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:47:02,514 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:47:02,514 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:47:02,515 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c [2018-11-18 10:47:02,560 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/data/390407051/3f83e621573a4e1884ee4124252e3bde/FLAG09a8ff7b4 [2018-11-18 10:47:02,890 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:47:02,890 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c [2018-11-18 10:47:02,894 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/data/390407051/3f83e621573a4e1884ee4124252e3bde/FLAG09a8ff7b4 [2018-11-18 10:47:03,320 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/data/390407051/3f83e621573a4e1884ee4124252e3bde [2018-11-18 10:47:03,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:47:03,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:47:03,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:47:03,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:47:03,325 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:47:03,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:47:03" (1/1) ... [2018-11-18 10:47:03,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0661fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:03, skipping insertion in model container [2018-11-18 10:47:03,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:47:03" (1/1) ... [2018-11-18 10:47:03,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:47:03,351 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:47:03,488 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:47:03,493 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:47:03,515 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:47:03,534 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:47:03,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:03 WrapperNode [2018-11-18 10:47:03,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:47:03,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:47:03,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:47:03,535 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:47:03,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:03" (1/1) ... [2018-11-18 10:47:03,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:03" (1/1) ... [2018-11-18 10:47:03,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:47:03,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:47:03,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:47:03,554 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:47:03,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:03" (1/1) ... [2018-11-18 10:47:03,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:03" (1/1) ... [2018-11-18 10:47:03,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:03" (1/1) ... [2018-11-18 10:47:03,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:03" (1/1) ... [2018-11-18 10:47:03,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:03" (1/1) ... [2018-11-18 10:47:03,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:03" (1/1) ... [2018-11-18 10:47:03,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:03" (1/1) ... [2018-11-18 10:47:03,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:47:03,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:47:03,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:47:03,580 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:47:03,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:47:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 10:47:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 10:47:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-11-18 10:47:03,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-11-18 10:47:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:47:03,657 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:47:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:47:03,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:47:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:47:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 10:47:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:47:03,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:47:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 10:47:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:47:03,836 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:47:04,901 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:47:04,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:47:04 BoogieIcfgContainer [2018-11-18 10:47:04,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:47:04,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:47:04,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:47:04,904 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:47:04,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:47:03" (1/3) ... [2018-11-18 10:47:04,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5859bb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:47:04, skipping insertion in model container [2018-11-18 10:47:04,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:47:03" (2/3) ... [2018-11-18 10:47:04,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5859bb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:47:04, skipping insertion in model container [2018-11-18 10:47:04,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:47:04" (3/3) ... [2018-11-18 10:47:04,906 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b_true-unreach-call.c [2018-11-18 10:47:04,912 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:47:04,917 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:47:04,927 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:47:04,947 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:47:04,947 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:47:04,948 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:47:04,948 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:47:04,948 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:47:04,948 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:47:04,948 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:47:04,948 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:47:04,948 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:47:04,960 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-18 10:47:04,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 10:47:04,964 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:47:04,964 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:47:04,966 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:47:04,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:47:04,969 INFO L82 PathProgramCache]: Analyzing trace with hash 931409669, now seen corresponding path program 1 times [2018-11-18 10:47:04,972 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:47:04,972 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 10:47:04,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:47:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:47:05,016 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:47:05,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:47:05,028 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:47:05,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:47:05,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:47:05,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:47:05,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:47:05,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:47:05,058 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-18 10:47:05,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:47:05,071 INFO L93 Difference]: Finished difference Result 76 states and 114 transitions. [2018-11-18 10:47:05,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:47:05,072 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 10:47:05,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:47:05,079 INFO L225 Difference]: With dead ends: 76 [2018-11-18 10:47:05,079 INFO L226 Difference]: Without dead ends: 38 [2018-11-18 10:47:05,081 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:47:05,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-18 10:47:05,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-18 10:47:05,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 10:47:05,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2018-11-18 10:47:05,108 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 18 [2018-11-18 10:47:05,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:47:05,108 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2018-11-18 10:47:05,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:47:05,109 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2018-11-18 10:47:05,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 10:47:05,109 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:47:05,109 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:47:05,110 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:47:05,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:47:05,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1707462651, now seen corresponding path program 1 times [2018-11-18 10:47:05,111 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:47:05,112 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 10:47:05,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:47:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:47:05,165 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:47:05,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:47:05,273 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:47:05,285 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:47:05,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:47:05,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:47:05,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:47:05,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:47:05,288 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand 7 states. [2018-11-18 10:47:06,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:47:06,267 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2018-11-18 10:47:06,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:47:06,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-18 10:47:06,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:47:06,270 INFO L225 Difference]: With dead ends: 46 [2018-11-18 10:47:06,270 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 10:47:06,271 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:47:06,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 10:47:06,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2018-11-18 10:47:06,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 10:47:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2018-11-18 10:47:06,274 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 49 transitions. Word has length 19 [2018-11-18 10:47:06,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:47:06,274 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 49 transitions. [2018-11-18 10:47:06,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:47:06,275 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2018-11-18 10:47:06,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 10:47:06,275 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:47:06,275 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:47:06,276 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:47:06,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:47:06,276 INFO L82 PathProgramCache]: Analyzing trace with hash -291629828, now seen corresponding path program 1 times [2018-11-18 10:47:06,277 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:47:06,277 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/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 [2018-11-18 10:47:06,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:47:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:47:06,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:47:06,858 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-18 10:47:07,561 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 10:47:08,125 WARN L180 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 10:47:08,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:47:08,127 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:47:08,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:47:08,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:47:08,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:47:08,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:47:08,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:47:08,136 INFO L87 Difference]: Start difference. First operand 38 states and 49 transitions. Second operand 7 states. [2018-11-18 10:47:08,903 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 10:47:10,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:47:10,463 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2018-11-18 10:47:10,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:47:10,464 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-18 10:47:10,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:47:10,465 INFO L225 Difference]: With dead ends: 44 [2018-11-18 10:47:10,465 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 10:47:10,465 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:47:10,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 10:47:10,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 10:47:10,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 10:47:10,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2018-11-18 10:47:10,469 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 19 [2018-11-18 10:47:10,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:47:10,469 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2018-11-18 10:47:10,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:47:10,469 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2018-11-18 10:47:10,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 10:47:10,470 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:47:10,470 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:47:10,470 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:47:10,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:47:10,470 INFO L82 PathProgramCache]: Analyzing trace with hash 466765285, now seen corresponding path program 1 times [2018-11-18 10:47:10,471 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:47:10,471 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/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 [2018-11-18 10:47:10,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:47:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:47:10,572 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:47:12,950 WARN L180 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 10:47:12,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:47:12,954 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:47:12,964 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:47:12,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:47:12,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:47:12,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:47:12,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:47:12,964 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 6 states. [2018-11-18 10:47:15,686 WARN L180 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 10:47:17,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:47:17,535 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2018-11-18 10:47:17,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:47:17,536 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-11-18 10:47:17,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:47:17,537 INFO L225 Difference]: With dead ends: 46 [2018-11-18 10:47:17,537 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 10:47:17,537 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:47:17,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 10:47:17,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 10:47:17,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 10:47:17,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-11-18 10:47:17,540 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 22 [2018-11-18 10:47:17,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:47:17,541 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-11-18 10:47:17,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:47:17,541 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-11-18 10:47:17,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 10:47:17,541 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:47:17,541 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:47:17,542 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:47:17,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:47:17,542 INFO L82 PathProgramCache]: Analyzing trace with hash -812433258, now seen corresponding path program 1 times [2018-11-18 10:47:17,543 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:47:17,544 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/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 [2018-11-18 10:47:17,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:47:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:47:17,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:47:17,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2018-11-18 10:47:17,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 36 [2018-11-18 10:47:17,697 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 15 [2018-11-18 10:47:17,698 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:47:17,701 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:47:17,704 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:47:17,710 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:47:17,710 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2018-11-18 10:47:17,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:47:17,785 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:47:17,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:47:17,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 10:47:17,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 10:47:17,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 10:47:17,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:47:17,795 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 8 states. [2018-11-18 10:47:18,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:47:18,353 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2018-11-18 10:47:18,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:47:18,354 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-11-18 10:47:18,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:47:18,354 INFO L225 Difference]: With dead ends: 46 [2018-11-18 10:47:18,354 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 10:47:18,355 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-18 10:47:18,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 10:47:18,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 10:47:18,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 10:47:18,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-11-18 10:47:18,357 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 23 [2018-11-18 10:47:18,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:47:18,357 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-11-18 10:47:18,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 10:47:18,358 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-11-18 10:47:18,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 10:47:18,358 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:47:18,358 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:47:18,358 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:47:18,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:47:18,359 INFO L82 PathProgramCache]: Analyzing trace with hash -912955429, now seen corresponding path program 1 times [2018-11-18 10:47:18,359 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:47:18,359 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-18 10:47:18,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:47:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:47:18,476 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:47:18,500 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 10:47:18,501 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 10:47:18,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2018-11-18 10:47:18,548 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 10:47:18,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2018-11-18 10:47:18,559 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 10:47:18,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-11-18 10:47:18,586 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 9 [2018-11-18 10:47:18,587 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 10:47:18,593 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:47:18,599 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:47:18,613 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 10:47:18,613 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:57, output treesize:18 [2018-11-18 10:47:18,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:47:18,673 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:47:18,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:47:18,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:47:18,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:47:18,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:47:18,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:47:18,682 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 6 states. [2018-11-18 10:47:20,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:47:20,043 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-11-18 10:47:20,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:47:20,044 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-11-18 10:47:20,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:47:20,044 INFO L225 Difference]: With dead ends: 49 [2018-11-18 10:47:20,044 INFO L226 Difference]: Without dead ends: 25 [2018-11-18 10:47:20,045 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:47:20,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-18 10:47:20,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-18 10:47:20,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-18 10:47:20,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2018-11-18 10:47:20,047 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 24 [2018-11-18 10:47:20,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:47:20,048 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2018-11-18 10:47:20,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:47:20,048 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2018-11-18 10:47:20,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 10:47:20,048 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:47:20,048 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:47:20,048 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:47:20,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:47:20,048 INFO L82 PathProgramCache]: Analyzing trace with hash -232897059, now seen corresponding path program 1 times [2018-11-18 10:47:20,049 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:47:20,049 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-18 10:47:20,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:47:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:47:20,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:47:20,166 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2018-11-18 10:47:20,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 10:47:20,176 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-18 10:47:20,176 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:47:20,179 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:47:20,182 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:47:20,187 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 10:47:20,188 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:25, output treesize:14 [2018-11-18 10:47:20,322 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2018-11-18 10:47:20,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 42 [2018-11-18 10:47:20,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2018-11-18 10:47:20,343 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 10:47:20,347 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:47:20,352 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:47:20,371 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 10:47:20,372 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:67, output treesize:34 [2018-11-18 10:47:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:47:20,618 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:47:20,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:47:20,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-18 10:47:20,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 10:47:20,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 10:47:20,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-11-18 10:47:20,627 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 12 states. [2018-11-18 10:47:21,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:47:21,435 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2018-11-18 10:47:21,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 10:47:21,436 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 24 [2018-11-18 10:47:21,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:47:21,436 INFO L225 Difference]: With dead ends: 25 [2018-11-18 10:47:21,436 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:47:21,436 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-11-18 10:47:21,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:47:21,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:47:21,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:47:21,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:47:21,437 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-11-18 10:47:21,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:47:21,437 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:47:21,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 10:47:21,437 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:47:21,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:47:21,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:47:21,563 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:47:21,563 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:47:21,563 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:47:21,563 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2018-11-18 10:47:21,564 INFO L425 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2018-11-18 10:47:21,564 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2018-11-18 10:47:21,564 INFO L425 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2018-11-18 10:47:21,564 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2018-11-18 10:47:21,564 INFO L425 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-11-18 10:47:21,564 INFO L425 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2018-11-18 10:47:21,564 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-18 10:47:21,564 INFO L425 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-18 10:47:21,564 INFO L425 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2018-11-18 10:47:21,564 INFO L425 ceAbstractionStarter]: For program point L74-2(lines 19 81) no Hoare annotation was computed. [2018-11-18 10:47:21,564 INFO L425 ceAbstractionStarter]: For program point L74-3(lines 74 79) no Hoare annotation was computed. [2018-11-18 10:47:21,565 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2018-11-18 10:47:21,565 INFO L425 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2018-11-18 10:47:21,565 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2018-11-18 10:47:21,565 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2018-11-18 10:47:21,565 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-11-18 10:47:21,565 INFO L428 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 19 81) the Hoare annotation is: true [2018-11-18 10:47:21,565 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-18 10:47:21,565 INFO L425 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 19 81) no Hoare annotation was computed. [2018-11-18 10:47:21,565 INFO L425 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 19 81) no Hoare annotation was computed. [2018-11-18 10:47:21,565 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2018-11-18 10:47:21,565 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2018-11-18 10:47:21,566 INFO L421 ceAbstractionStarter]: At program point L22-3(lines 22 27) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0)) (= |ceil_double_#in~x| ceil_double_~x)) [2018-11-18 10:47:21,566 INFO L425 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2018-11-18 10:47:21,566 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 27) no Hoare annotation was computed. [2018-11-18 10:47:21,566 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2018-11-18 10:47:21,566 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:47:21,566 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) [2018-11-18 10:47:21,566 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:47:21,566 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:47:21,567 INFO L425 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2018-11-18 10:47:21,567 INFO L425 ceAbstractionStarter]: For program point L95(lines 95 98) no Hoare annotation was computed. [2018-11-18 10:47:21,567 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 83 100) the Hoare annotation is: true [2018-11-18 10:47:21,567 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 83 100) no Hoare annotation was computed. [2018-11-18 10:47:21,567 INFO L421 ceAbstractionStarter]: At program point L92(line 92) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0)) (= (_ +zero 11 53) main_~x~0)) [2018-11-18 10:47:21,567 INFO L425 ceAbstractionStarter]: For program point L92-1(line 92) no Hoare annotation was computed. [2018-11-18 10:47:21,567 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2018-11-18 10:47:21,568 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 83 100) no Hoare annotation was computed. [2018-11-18 10:47:21,573 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 10:47:21,576 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 10:47:21,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:47:21 BoogieIcfgContainer [2018-11-18 10:47:21,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:47:21,578 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:47:21,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:47:21,579 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:47:21,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:47:04" (3/4) ... [2018-11-18 10:47:21,581 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:47:21,586 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:47:21,586 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-11-18 10:47:21,586 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:47:21,589 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 10:47:21,589 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 10:47:21,589 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:47:21,614 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil) || \old(x) == x [2018-11-18 10:47:21,633 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1e995e0d-8544-4929-805e-43e35cef5f8d/bin-2019/utaipan/witness.graphml [2018-11-18 10:47:21,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:47:21,634 INFO L168 Benchmark]: Toolchain (without parser) took 18312.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 949.7 MB in the beginning and 846.9 MB in the end (delta: 102.8 MB). Peak memory consumption was 263.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:47:21,635 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:47:21,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.22 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:47:21,636 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.01 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:47:21,636 INFO L168 Benchmark]: Boogie Preprocessor took 25.81 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:47:21,637 INFO L168 Benchmark]: RCFGBuilder took 1321.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:47:21,637 INFO L168 Benchmark]: TraceAbstraction took 16676.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 848.8 MB in the end (delta: 276.6 MB). Peak memory consumption was 276.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:47:21,637 INFO L168 Benchmark]: Witness Printer took 55.37 ms. Allocated memory is still 1.2 GB. Free memory was 848.8 MB in the beginning and 846.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:47:21,639 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 211.22 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.01 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.81 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1321.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16676.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 848.8 MB in the end (delta: 276.6 MB). Peak memory consumption was 276.6 MB. Max. memory is 11.5 GB. * Witness Printer took 55.37 ms. Allocated memory is still 1.2 GB. Free memory was 848.8 MB in the beginning and 846.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: 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: 22]: Loop Invariant [2018-11-18 10:47:21,644 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 10:47:21,645 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil) || \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. SAFE Result, 16.6s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 10.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 247 SDtfs, 230 SDslu, 548 SDs, 0 SdLazy, 329 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 104 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 29 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 142 ConstructedInterpolants, 26 QuantifiedInterpolants, 23208 SizeOfPredicates, 23 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...