./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/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 e16d2ad47f8069122c38404dcdf9504ef10df900 ........................................................................................................................................................................................................................................................................................................................................................................... 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_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/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 e16d2ad47f8069122c38404dcdf9504ef10df900 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:11:56,639 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:11:56,641 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:11:56,648 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:11:56,648 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:11:56,649 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:11:56,650 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:11:56,652 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:11:56,653 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:11:56,654 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:11:56,654 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:11:56,655 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:11:56,655 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:11:56,656 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:11:56,657 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:11:56,658 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:11:56,658 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:11:56,660 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:11:56,661 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:11:56,663 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:11:56,664 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:11:56,665 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:11:56,666 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:11:56,666 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:11:56,666 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:11:56,667 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:11:56,668 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:11:56,668 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:11:56,669 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:11:56,670 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:11:56,670 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:11:56,671 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:11:56,671 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:11:56,671 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:11:56,672 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:11:56,672 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:11:56,673 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 07:11:56,682 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:11:56,683 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:11:56,683 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:11:56,683 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 07:11:56,684 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 07:11:56,684 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 07:11:56,684 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 07:11:56,684 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 07:11:56,684 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 07:11:56,684 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 07:11:56,685 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 07:11:56,685 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:11:56,685 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:11:56,686 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:11:56,686 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:11:56,686 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:11:56,686 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:11:56,686 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:11:56,686 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:11:56,686 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:11:56,687 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:11:56,687 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:11:56,687 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:11:56,687 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:11:56,687 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:11:56,687 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:11:56,688 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:11:56,688 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:11:56,688 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:11:56,688 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:11:56,688 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 07:11:56,688 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:11:56,689 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:11:56,689 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 07:11:56,689 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_faf4e597-ef66-42f4-a60b-f1527340cc83/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 -> e16d2ad47f8069122c38404dcdf9504ef10df900 [2018-11-10 07:11:56,716 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:11:56,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:11:56,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:11:56,731 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:11:56,731 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:11:56,732 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c [2018-11-10 07:11:56,785 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/data/21cdd4c9a/b53b24c43c0b42e8bb6065cc4363adcf/FLAGab9494715 [2018-11-10 07:11:57,137 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:11:57,137 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c [2018-11-10 07:11:57,143 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/data/21cdd4c9a/b53b24c43c0b42e8bb6065cc4363adcf/FLAGab9494715 [2018-11-10 07:11:57,157 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/data/21cdd4c9a/b53b24c43c0b42e8bb6065cc4363adcf [2018-11-10 07:11:57,161 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:11:57,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:11:57,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:11:57,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:11:57,167 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:11:57,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:11:57" (1/1) ... [2018-11-10 07:11:57,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b52ffc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:57, skipping insertion in model container [2018-11-10 07:11:57,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:11:57" (1/1) ... [2018-11-10 07:11:57,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:11:57,202 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:11:57,342 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:11:57,344 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:11:57,364 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:11:57,380 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:11:57,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:57 WrapperNode [2018-11-10 07:11:57,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:11:57,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:11:57,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:11:57,381 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:11:57,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:57" (1/1) ... [2018-11-10 07:11:57,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:57" (1/1) ... [2018-11-10 07:11:57,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:11:57,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:11:57,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:11:57,417 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:11:57,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:57" (1/1) ... [2018-11-10 07:11:57,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:57" (1/1) ... [2018-11-10 07:11:57,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:57" (1/1) ... [2018-11-10 07:11:57,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:57" (1/1) ... [2018-11-10 07:11:57,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:57" (1/1) ... [2018-11-10 07:11:57,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:57" (1/1) ... [2018-11-10 07:11:57,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:57" (1/1) ... [2018-11-10 07:11:57,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:11:57,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:11:57,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:11:57,492 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:11:57,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/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 [2018-11-10 07:11:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:11:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:11:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:11:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:11:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:11:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:11:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-10 07:11:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-10 07:11:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 07:11:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 07:11:57,799 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:11:57,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:11:57 BoogieIcfgContainer [2018-11-10 07:11:57,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:11:57,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:11:57,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:11:57,804 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:11:57,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:11:57" (1/3) ... [2018-11-10 07:11:57,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0ad41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:11:57, skipping insertion in model container [2018-11-10 07:11:57,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:57" (2/3) ... [2018-11-10 07:11:57,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0ad41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:11:57, skipping insertion in model container [2018-11-10 07:11:57,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:11:57" (3/3) ... [2018-11-10 07:11:57,808 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d_true-unreach-call.c [2018-11-10 07:11:57,817 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:11:57,825 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:11:57,841 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:11:57,867 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:11:57,867 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:11:57,867 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:11:57,867 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:11:57,867 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:11:57,868 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:11:57,868 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:11:57,868 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:11:57,881 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-10 07:11:57,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 07:11:57,886 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:11:57,887 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:11:57,888 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:11:57,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:11:57,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1323672872, now seen corresponding path program 1 times [2018-11-10 07:11:57,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:11:57,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:11:57,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:11:57,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:11:57,930 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:11:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:11:57,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:11:57,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:11:57,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:11:57,990 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 07:11:57,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 07:11:58,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 07:11:58,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:11:58,005 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-10 07:11:58,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:11:58,025 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-11-10 07:11:58,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:11:58,026 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 07:11:58,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:11:58,032 INFO L225 Difference]: With dead ends: 68 [2018-11-10 07:11:58,032 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 07:11:58,034 INFO L605 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 [2018-11-10 07:11:58,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 07:11:58,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-10 07:11:58,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 07:11:58,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-10 07:11:58,061 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2018-11-10 07:11:58,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:11:58,061 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-10 07:11:58,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 07:11:58,061 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-10 07:11:58,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 07:11:58,062 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:11:58,062 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:11:58,062 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:11:58,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:11:58,063 INFO L82 PathProgramCache]: Analyzing trace with hash 203657517, now seen corresponding path program 1 times [2018-11-10 07:11:58,063 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:11:58,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:11:58,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:11:58,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:11:58,064 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:11:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:11:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:11:58,158 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:11:58,169 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 07:11:58,170 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:11:58,170 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:11:58,170 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 07:11:58,171 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 07:11:58,171 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:11:58,171 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:11:58,171 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 07:11:58,171 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 07:11:58,172 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:11:58,172 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:11:58,172 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 07:11:58,172 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 07:11:58,173 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:11:58,173 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:11:58,173 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 07:11:58,173 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 07:11:58,173 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:11:58,174 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:11:58,174 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 07:11:58,174 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 07:11:58,174 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:11:58,174 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:11:58,175 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 07:11:58,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:11:58 BoogieIcfgContainer [2018-11-10 07:11:58,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:11:58,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:11:58,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:11:58,190 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:11:58,190 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:11:57" (3/4) ... [2018-11-10 07:11:58,194 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 07:11:58,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:11:58,194 INFO L168 Benchmark]: Toolchain (without parser) took 1033.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -126.0 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:58,196 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:11:58,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.82 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:58,197 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.68 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:58,197 INFO L168 Benchmark]: Boogie Preprocessor took 74.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:58,198 INFO L168 Benchmark]: RCFGBuilder took 308.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:58,198 INFO L168 Benchmark]: TraceAbstraction took 388.19 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:58,199 INFO L168 Benchmark]: Witness Printer took 4.22 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. [2018-11-10 07:11:58,202 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 217.82 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.68 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 308.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 388.19 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 67]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 66, overapproximation of bitwiseAnd at line 19, overapproximation of someUnaryFLOAToperation at line 62, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L62] float x = -0.0f; [L63] CALL, EXPR trunc_float(x) [L13] __int32_t signbit, w, exponent_less_127; [L15] CALL ieee_float_shape_type gf_u; [L15] RET ieee_float_shape_type gf_u; [L16] CALL gf_u.value = (x) [L16] RET gf_u.value = (x) [L17] CALL, EXPR gf_u.word [L17] RET, EXPR gf_u.word [L17] (w) = gf_u.word [L17] RET (w) = gf_u.word [L18] COND FALSE !(0) [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 [L21] COND FALSE !(exponent_less_127 < 23) [L37] COND TRUE exponent_less_127 == 255 [L38] RET return x + x; [L63] EXPR trunc_float(x) VAL [trunc_float(x)=6442450945, x=6442450948] [L63] float res = trunc_float(x); [L66] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=6442450945, res == -0.0f && __signbit_float(res) == 1=0, x=6442450948] [L66] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L67] __VERIFIER_error() VAL [res=6442450945, x=6442450948] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 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=38occurred 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 0.1.23-1dbac8b [2018-11-10 07:11:59,866 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:11:59,867 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:11:59,877 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:11:59,878 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:11:59,879 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:11:59,880 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:11:59,881 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:11:59,883 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:11:59,883 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:11:59,884 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:11:59,884 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:11:59,885 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:11:59,886 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:11:59,887 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:11:59,888 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:11:59,889 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:11:59,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:11:59,892 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:11:59,893 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:11:59,894 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:11:59,895 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:11:59,897 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:11:59,897 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:11:59,897 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:11:59,898 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:11:59,899 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:11:59,900 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:11:59,900 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:11:59,901 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:11:59,901 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:11:59,902 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:11:59,902 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:11:59,902 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:11:59,903 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:11:59,904 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:11:59,904 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 07:11:59,917 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:11:59,917 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:11:59,918 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:11:59,918 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 07:11:59,918 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 07:11:59,918 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 07:11:59,918 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 07:11:59,919 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 07:11:59,919 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:11:59,919 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:11:59,920 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:11:59,920 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:11:59,920 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:11:59,920 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:11:59,920 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:11:59,920 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 07:11:59,921 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 07:11:59,921 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:11:59,921 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:11:59,921 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:11:59,921 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:11:59,922 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:11:59,922 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:11:59,922 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:11:59,922 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:11:59,922 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:11:59,922 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:11:59,923 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:11:59,923 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 07:11:59,923 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:11:59,923 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 07:11:59,923 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 07:11:59,923 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_faf4e597-ef66-42f4-a60b-f1527340cc83/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 -> e16d2ad47f8069122c38404dcdf9504ef10df900 [2018-11-10 07:11:59,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:11:59,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:11:59,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:11:59,975 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:11:59,976 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:11:59,976 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c [2018-11-10 07:12:00,031 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/data/f1fea185f/94085920e94f4cd883b50949f0940d20/FLAGcf6c58e2c [2018-11-10 07:12:00,402 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:12:00,403 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c [2018-11-10 07:12:00,407 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/data/f1fea185f/94085920e94f4cd883b50949f0940d20/FLAGcf6c58e2c [2018-11-10 07:12:00,417 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/data/f1fea185f/94085920e94f4cd883b50949f0940d20 [2018-11-10 07:12:00,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:12:00,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:12:00,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:12:00,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:12:00,427 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:12:00,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:12:00" (1/1) ... [2018-11-10 07:12:00,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98713a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:12:00, skipping insertion in model container [2018-11-10 07:12:00,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:12:00" (1/1) ... [2018-11-10 07:12:00,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:12:00,458 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:12:00,599 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:12:00,603 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:12:00,622 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:12:00,641 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:12:00,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:12:00 WrapperNode [2018-11-10 07:12:00,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:12:00,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:12:00,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:12:00,642 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:12:00,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:12:00" (1/1) ... [2018-11-10 07:12:00,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:12:00" (1/1) ... [2018-11-10 07:12:00,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:12:00,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:12:00,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:12:00,675 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:12:00,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:12:00" (1/1) ... [2018-11-10 07:12:00,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:12:00" (1/1) ... [2018-11-10 07:12:00,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:12:00" (1/1) ... [2018-11-10 07:12:00,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:12:00" (1/1) ... [2018-11-10 07:12:00,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:12:00" (1/1) ... [2018-11-10 07:12:00,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:12:00" (1/1) ... [2018-11-10 07:12:00,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:12:00" (1/1) ... [2018-11-10 07:12:00,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:12:00,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:12:00,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:12:00,708 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:12:00,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:12:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/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 [2018-11-10 07:12:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:12:00,810 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:12:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:12:00,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:12:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:12:00,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:12:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-10 07:12:00,811 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-10 07:12:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 07:12:00,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 07:12:01,047 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 07:12:01,110 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 07:12:01,122 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:12:01,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:12:01 BoogieIcfgContainer [2018-11-10 07:12:01,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:12:01,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:12:01,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:12:01,127 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:12:01,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:12:00" (1/3) ... [2018-11-10 07:12:01,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3dd2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:12:01, skipping insertion in model container [2018-11-10 07:12:01,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:12:00" (2/3) ... [2018-11-10 07:12:01,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3dd2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:12:01, skipping insertion in model container [2018-11-10 07:12:01,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:12:01" (3/3) ... [2018-11-10 07:12:01,130 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d_true-unreach-call.c [2018-11-10 07:12:01,136 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:12:01,142 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:12:01,152 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:12:01,175 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:12:01,175 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:12:01,175 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:12:01,176 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:12:01,176 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:12:01,176 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:12:01,176 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:12:01,176 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:12:01,176 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:12:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-10 07:12:01,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 07:12:01,195 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:12:01,196 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:12:01,198 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:12:01,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:12:01,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1323672872, now seen corresponding path program 1 times [2018-11-10 07:12:01,205 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:12:01,206 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/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 [2018-11-10 07:12:01,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:12:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:12:01,281 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:12:01,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:12:01,299 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:12:01,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:12:01,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:12:01,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 07:12:01,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 07:12:01,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:12:01,325 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-10 07:12:01,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:12:01,342 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-11-10 07:12:01,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:12:01,343 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 07:12:01,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:12:01,350 INFO L225 Difference]: With dead ends: 68 [2018-11-10 07:12:01,350 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 07:12:01,353 INFO L605 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 [2018-11-10 07:12:01,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 07:12:01,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-10 07:12:01,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 07:12:01,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-10 07:12:01,381 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2018-11-10 07:12:01,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:12:01,381 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-10 07:12:01,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 07:12:01,382 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-10 07:12:01,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 07:12:01,383 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:12:01,383 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:12:01,383 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:12:01,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:12:01,384 INFO L82 PathProgramCache]: Analyzing trace with hash 203657517, now seen corresponding path program 1 times [2018-11-10 07:12:01,384 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:12:01,384 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/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 [2018-11-10 07:12:01,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:12:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:12:01,456 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:12:01,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:12:01,605 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:12:01,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:12:01,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 07:12:01,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 07:12:01,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 07:12:01,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 07:12:01,617 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 7 states. [2018-11-10 07:12:01,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:12:01,977 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-10 07:12:01,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 07:12:01,978 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-10 07:12:01,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:12:01,979 INFO L225 Difference]: With dead ends: 52 [2018-11-10 07:12:01,979 INFO L226 Difference]: Without dead ends: 33 [2018-11-10 07:12:01,980 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-10 07:12:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-10 07:12:01,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-10 07:12:01,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 07:12:01,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2018-11-10 07:12:01,987 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 19 [2018-11-10 07:12:01,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:12:01,987 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2018-11-10 07:12:01,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 07:12:01,987 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-11-10 07:12:01,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 07:12:01,988 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:12:01,988 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] [2018-11-10 07:12:01,988 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:12:01,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:12:01,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1915280597, now seen corresponding path program 1 times [2018-11-10 07:12:01,990 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:12:01,990 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/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 [2018-11-10 07:12:01,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:12:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:12:02,047 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:12:02,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:12:02,163 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:12:02,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:12:02,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 07:12:02,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 07:12:02,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 07:12:02,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 07:12:02,172 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 7 states. [2018-11-10 07:12:02,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:12:02,491 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2018-11-10 07:12:02,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 07:12:02,492 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-10 07:12:02,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:12:02,493 INFO L225 Difference]: With dead ends: 49 [2018-11-10 07:12:02,493 INFO L226 Difference]: Without dead ends: 31 [2018-11-10 07:12:02,493 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-10 07:12:02,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-10 07:12:02,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-10 07:12:02,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-10 07:12:02,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-11-10 07:12:02,497 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 22 [2018-11-10 07:12:02,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:12:02,498 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-11-10 07:12:02,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 07:12:02,498 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-11-10 07:12:02,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 07:12:02,499 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:12:02,499 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] [2018-11-10 07:12:02,499 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:12:02,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:12:02,499 INFO L82 PathProgramCache]: Analyzing trace with hash 2002083898, now seen corresponding path program 1 times [2018-11-10 07:12:02,500 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:12:02,500 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/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 [2018-11-10 07:12:02,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:12:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:12:02,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:12:02,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:12:02,693 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:12:02,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:12:02,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 07:12:02,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 07:12:02,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 07:12:02,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 07:12:02,710 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2018-11-10 07:12:02,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:12:02,824 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-11-10 07:12:02,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 07:12:02,825 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-10 07:12:02,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:12:02,826 INFO L225 Difference]: With dead ends: 34 [2018-11-10 07:12:02,826 INFO L226 Difference]: Without dead ends: 31 [2018-11-10 07:12:02,826 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-10 07:12:02,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-10 07:12:02,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-10 07:12:02,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-10 07:12:02,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2018-11-10 07:12:02,832 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 22 [2018-11-10 07:12:02,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:12:02,832 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2018-11-10 07:12:02,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 07:12:02,833 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2018-11-10 07:12:02,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 07:12:02,833 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:12:02,834 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, 1, 1, 1, 1, 1, 1] [2018-11-10 07:12:02,834 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:12:02,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:12:02,834 INFO L82 PathProgramCache]: Analyzing trace with hash -834906711, now seen corresponding path program 1 times [2018-11-10 07:12:02,835 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:12:02,835 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/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 [2018-11-10 07:12:02,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:12:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:12:02,907 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:12:03,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:12:03,258 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:12:03,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:12:03,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-10 07:12:03,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-10 07:12:03,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-10 07:12:03,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-11-10 07:12:03,269 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 15 states. [2018-11-10 07:12:04,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:12:04,014 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2018-11-10 07:12:04,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-10 07:12:04,015 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 30 [2018-11-10 07:12:04,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:12:04,015 INFO L225 Difference]: With dead ends: 31 [2018-11-10 07:12:04,015 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 07:12:04,016 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2018-11-10 07:12:04,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 07:12:04,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 07:12:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 07:12:04,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 07:12:04,017 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-11-10 07:12:04,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:12:04,017 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:12:04,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-10 07:12:04,017 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 07:12:04,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 07:12:04,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 07:12:04,184 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 07:12:04,184 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 07:12:04,184 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:12:04,184 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:12:04,184 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 07:12:04,184 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 07:12:04,184 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 07:12:04,185 INFO L421 ceAbstractionStarter]: At program point L66-1(line 66) the Hoare annotation is: (and (= main_~x~0 (fp.neg (_ +zero 8 24))) |main_#t~short10| (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= main_~res~0 (let ((.cse0 (bvand trunc_float_~w~0 (_ bv2147483648 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) (fp.neg (_ +zero 8 24)))))) [2018-11-10 07:12:04,185 INFO L425 ceAbstractionStarter]: For program point L66-2(line 66) no Hoare annotation was computed. [2018-11-10 07:12:04,185 INFO L421 ceAbstractionStarter]: At program point L63(line 63) the Hoare annotation is: (= main_~x~0 (fp.neg (_ +zero 8 24))) [2018-11-10 07:12:04,185 INFO L425 ceAbstractionStarter]: For program point L63-1(line 63) no Hoare annotation was computed. [2018-11-10 07:12:04,185 INFO L425 ceAbstractionStarter]: For program point L66-4(lines 66 69) no Hoare annotation was computed. [2018-11-10 07:12:04,185 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 55 72) the Hoare annotation is: true [2018-11-10 07:12:04,185 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 55 72) no Hoare annotation was computed. [2018-11-10 07:12:04,185 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 55 72) no Hoare annotation was computed. [2018-11-10 07:12:04,185 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 67) no Hoare annotation was computed. [2018-11-10 07:12:04,185 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-10 07:12:04,186 INFO L425 ceAbstractionStarter]: For program point L66(line 66) no Hoare annotation was computed. [2018-11-10 07:12:04,186 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-11-10 07:12:04,186 INFO L425 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 12 41) no Hoare annotation was computed. [2018-11-10 07:12:04,186 INFO L421 ceAbstractionStarter]: At program point L24-3(lines 24 28) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (bvand trunc_float_~w~0 (_ bv2147483648 32)) trunc_float_~signbit~0) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd trunc_float_~exponent_less_127~0 (_ bv127 32)) (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32)))))) [2018-11-10 07:12:04,186 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-10 07:12:04,186 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 39) no Hoare annotation was computed. [2018-11-10 07:12:04,186 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2018-11-10 07:12:04,186 INFO L428 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 12 41) the Hoare annotation is: true [2018-11-10 07:12:04,187 INFO L425 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 12 41) no Hoare annotation was computed. [2018-11-10 07:12:04,187 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-11-10 07:12:04,187 INFO L421 ceAbstractionStarter]: At program point L30-3(lines 30 34) the Hoare annotation is: (and (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (not (bvslt (bvadd (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32)) (_ bv4294967169 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|))) (= trunc_float_~x |trunc_float_#in~x|) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd trunc_float_~exponent_less_127~0 (_ bv127 32)) (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32)))))) [2018-11-10 07:12:04,187 INFO L425 ceAbstractionStarter]: For program point L22(lines 22 35) no Hoare annotation was computed. [2018-11-10 07:12:04,187 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-10 07:12:04,187 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 18) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-11-10 07:12:04,187 INFO L425 ceAbstractionStarter]: For program point L14-4(lines 14 18) no Hoare annotation was computed. [2018-11-10 07:12:04,188 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 43 53) no Hoare annotation was computed. [2018-11-10 07:12:04,188 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 43 53) the Hoare annotation is: true [2018-11-10 07:12:04,188 INFO L425 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2018-11-10 07:12:04,188 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 43 53) no Hoare annotation was computed. [2018-11-10 07:12:04,188 INFO L421 ceAbstractionStarter]: At program point L46-3(lines 46 50) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-10 07:12:04,188 INFO L425 ceAbstractionStarter]: For program point L46-4(lines 46 50) no Hoare annotation was computed. [2018-11-10 07:12:04,198 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,198 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,198 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,199 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,199 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,199 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,199 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,199 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,200 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,200 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,200 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,200 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,201 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,201 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,201 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,201 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,203 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,203 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,203 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,203 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,203 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,204 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,204 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,204 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,205 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,205 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,205 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,209 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,210 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,210 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,210 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,210 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:12:04 BoogieIcfgContainer [2018-11-10 07:12:04,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:12:04,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:12:04,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:12:04,212 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:12:04,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:12:01" (3/4) ... [2018-11-10 07:12:04,218 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 07:12:04,222 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 07:12:04,223 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 07:12:04,223 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-11-10 07:12:04,223 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-10 07:12:04,228 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 66 nodes and edges [2018-11-10 07:12:04,229 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2018-11-10 07:12:04,229 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 07:12:04,249 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-10 07:12:04,250 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 07:12:04,250 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~bvand32(trunc_float_~w~0, 2147483648bv32) == signbit && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32)) [2018-11-10 07:12:04,250 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists trunc_float_~w~0 : bv32 :: !~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 0bv32) && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32)) [2018-11-10 07:12:04,275 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_faf4e597-ef66-42f4-a60b-f1527340cc83/bin-2019/utaipan/witness.graphml [2018-11-10 07:12:04,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:12:04,276 INFO L168 Benchmark]: Toolchain (without parser) took 3855.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 949.7 MB in the beginning and 875.1 MB in the end (delta: 74.7 MB). Peak memory consumption was 224.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:12:04,277 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-11-10 07:12:04,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.83 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. [2018-11-10 07:12:04,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.50 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. [2018-11-10 07:12:04,278 INFO L168 Benchmark]: Boogie Preprocessor took 33.31 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. [2018-11-10 07:12:04,278 INFO L168 Benchmark]: RCFGBuilder took 414.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-11-10 07:12:04,278 INFO L168 Benchmark]: TraceAbstraction took 3087.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.0 MB in the end (delta: 237.1 MB). Peak memory consumption was 237.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:12:04,278 INFO L168 Benchmark]: Witness Printer took 63.23 ms. Allocated memory is still 1.2 GB. Free memory was 882.0 MB in the beginning and 875.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:12:04,280 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 218.83 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 32.50 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 33.31 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 414.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3087.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.0 MB in the end (delta: 237.1 MB). Peak memory consumption was 237.1 MB. Max. memory is 11.5 GB. * Witness Printer took 63.23 ms. Allocated memory is still 1.2 GB. Free memory was 882.0 MB in the beginning and 875.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 67]: 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: 14]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 30]: Loop Invariant [2018-11-10 07:12:04,284 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,284 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,284 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,285 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,285 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,285 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,285 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,285 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,286 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,286 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,286 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,286 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,286 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,286 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,286 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,286 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists trunc_float_~w~0 : bv32 :: !~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 0bv32) && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32)) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 24]: Loop Invariant [2018-11-10 07:12:04,287 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,287 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,287 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,287 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,287 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,287 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,287 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,288 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,288 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,288 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,288 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,288 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,288 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,288 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,288 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 07:12:04,288 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~bvand32(trunc_float_~w~0, 2147483648bv32) == signbit && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 137 SDtfs, 106 SDslu, 507 SDs, 0 SdLazy, 229 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 23 NumberOfFragments, 152 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 31 QuantifiedInterpolants, 19515 SizeOfPredicates, 55 NumberOfNonLiveVariables, 417 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...