./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_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_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/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 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 .............................................................................................................................................................................................................................................................................................................................................................................. 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_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/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 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:37:35,690 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:37:35,700 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:37:35,711 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:37:35,712 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:37:35,713 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:37:35,714 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:37:35,716 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:37:35,717 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:37:35,718 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:37:35,719 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:37:35,720 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:37:35,721 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:37:35,721 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:37:35,722 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:37:35,724 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:37:35,725 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:37:35,726 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:37:35,728 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:37:35,730 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:37:35,731 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:37:35,732 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:37:35,735 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:37:35,735 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:37:35,735 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:37:35,736 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:37:35,737 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:37:35,738 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:37:35,740 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:37:35,741 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:37:35,741 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:37:35,742 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:37:35,742 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:37:35,742 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:37:35,744 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:37:35,745 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:37:35,745 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 22:37:35,763 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:37:35,763 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:37:35,764 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:37:35,765 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:37:35,765 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:37:35,765 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:37:35,765 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 22:37:35,765 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:37:35,765 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 22:37:35,766 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 22:37:35,766 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:37:35,766 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:37:35,767 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:37:35,768 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:37:35,768 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:37:35,768 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:37:35,768 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:37:35,769 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:37:35,769 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:37:35,769 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:37:35,769 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:37:35,769 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:37:35,769 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:37:35,770 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:37:35,770 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:37:35,770 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:37:35,770 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:37:35,770 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:37:35,771 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:37:35,771 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:37:35,773 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 22:37:35,773 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:37:35,773 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:37:35,773 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:37:35,773 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_50c79183-e270-4684-8e13-e3ab5dd231c4/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 -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 [2018-10-26 22:37:35,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:37:35,841 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:37:35,847 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:37:35,848 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:37:35,849 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:37:35,849 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-10-26 22:37:35,915 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/data/27061e66f/79a1ae0b66484c5987004ed14a9f4f3c/FLAGb16e40fc3 [2018-10-26 22:37:36,324 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:37:36,325 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-10-26 22:37:36,332 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/data/27061e66f/79a1ae0b66484c5987004ed14a9f4f3c/FLAGb16e40fc3 [2018-10-26 22:37:36,345 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/data/27061e66f/79a1ae0b66484c5987004ed14a9f4f3c [2018-10-26 22:37:36,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:37:36,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:37:36,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:37:36,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:37:36,355 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:37:36,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:37:36" (1/1) ... [2018-10-26 22:37:36,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c843be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:36, skipping insertion in model container [2018-10-26 22:37:36,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:37:36" (1/1) ... [2018-10-26 22:37:36,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:37:36,394 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:37:36,562 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:37:36,565 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:37:36,591 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:37:36,612 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:37:36,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:36 WrapperNode [2018-10-26 22:37:36,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:37:36,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:37:36,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:37:36,614 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:37:36,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:36" (1/1) ... [2018-10-26 22:37:36,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:36" (1/1) ... [2018-10-26 22:37:36,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:37:36,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:37:36,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:37:36,663 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:37:36,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:36" (1/1) ... [2018-10-26 22:37:36,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:36" (1/1) ... [2018-10-26 22:37:36,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:36" (1/1) ... [2018-10-26 22:37:36,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:36" (1/1) ... [2018-10-26 22:37:36,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:36" (1/1) ... [2018-10-26 22:37:36,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:36" (1/1) ... [2018-10-26 22:37:36,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:36" (1/1) ... [2018-10-26 22:37:36,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:37:36,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:37:36,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:37:36,698 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:37:36,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:37:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:37:36,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:37:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:37:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:37:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-10-26 22:37:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-10-26 22:37:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:37:36,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:37:36,852 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-26 22:37:36,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-26 22:37:37,562 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:37:37,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:37:37 BoogieIcfgContainer [2018-10-26 22:37:37,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:37:37,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:37:37,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:37:37,567 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:37:37,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:37:36" (1/3) ... [2018-10-26 22:37:37,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382120e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:37:37, skipping insertion in model container [2018-10-26 22:37:37,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:36" (2/3) ... [2018-10-26 22:37:37,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382120e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:37:37, skipping insertion in model container [2018-10-26 22:37:37,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:37:37" (3/3) ... [2018-10-26 22:37:37,571 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b_true-unreach-call.c [2018-10-26 22:37:37,581 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:37:37,590 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:37:37,614 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:37:37,649 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:37:37,649 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:37:37,649 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:37:37,649 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:37:37,649 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:37:37,650 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:37:37,650 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:37:37,650 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:37:37,670 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-10-26 22:37:37,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 22:37:37,682 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:37:37,684 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:37:37,686 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:37:37,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:37:37,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1066529686, now seen corresponding path program 1 times [2018-10-26 22:37:37,695 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:37:37,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:37:37,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:37:37,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:37:37,747 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:37:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:37:37,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:37:37,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:37:37,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:37:37,824 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:37:37,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:37:37,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:37:37,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:37:37,848 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-10-26 22:37:37,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:37:37,870 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-10-26 22:37:37,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:37:37,871 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 22:37:37,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:37:37,881 INFO L225 Difference]: With dead ends: 68 [2018-10-26 22:37:37,881 INFO L226 Difference]: Without dead ends: 34 [2018-10-26 22:37:37,885 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 [2018-10-26 22:37:37,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-26 22:37:37,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-10-26 22:37:37,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-26 22:37:37,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-10-26 22:37:37,925 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 18 [2018-10-26 22:37:37,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:37:37,925 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-10-26 22:37:37,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:37:37,925 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-10-26 22:37:37,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 22:37:37,926 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:37:37,926 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:37:37,927 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:37:37,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:37:37,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1883902620, now seen corresponding path program 1 times [2018-10-26 22:37:37,928 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:37:37,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:37:37,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:37:37,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:37:37,929 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:37:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:37:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:37:38,067 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 22:37:38,081 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:37:38,082 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:37:38,082 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:37:38,083 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:37:38,083 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:37:38,083 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:37:38,083 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:37:38,084 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:37:38,084 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:37:38,084 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:37:38,085 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:37:38,085 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:37:38,085 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:37:38,085 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:37:38,086 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:37:38,086 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:37:38,086 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:37:38,086 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:37:38,087 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:37:38,087 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:37:38,087 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:37:38,088 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:37:38,088 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:37:38,088 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:37:38,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:37:38 BoogieIcfgContainer [2018-10-26 22:37:38,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:37:38,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:37:38,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:37:38,110 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:37:38,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:37:37" (3/4) ... [2018-10-26 22:37:38,115 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 22:37:38,115 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:37:38,116 INFO L168 Benchmark]: Toolchain (without parser) took 1768.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 955.8 MB in the beginning and 1.1 GB in the end (delta: -126.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-10-26 22:37:38,118 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:37:38,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.12 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 945.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:37:38,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.55 ms. Allocated memory is still 1.0 GB. Free memory was 945.0 MB in the beginning and 942.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:37:38,120 INFO L168 Benchmark]: Boogie Preprocessor took 35.08 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:37:38,121 INFO L168 Benchmark]: RCFGBuilder took 864.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-10-26 22:37:38,122 INFO L168 Benchmark]: TraceAbstraction took 542.72 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-10-26 22:37:38,123 INFO L168 Benchmark]: Witness Printer took 8.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:37:38,127 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 263.12 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 945.0 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 48.55 ms. Allocated memory is still 1.0 GB. Free memory was 945.0 MB in the beginning and 942.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.08 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 864.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 542.72 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Witness Printer took 8.61 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.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 - 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: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 23, overapproximation of someUnaryFLOAToperation at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L75] float x = -0.0f; [L76] CALL, EXPR round_float(x) [L13] __uint32_t w; [L15] int exponent_less_127; [L18] CALL ieee_float_shape_type gf_u; [L18] RET ieee_float_shape_type gf_u; [L19] CALL gf_u.value = (x) [L19] RET gf_u.value = (x) [L20] CALL, EXPR gf_u.word [L20] RET, EXPR gf_u.word [L20] (w) = gf_u.word [L20] RET (w) = gf_u.word [L21] COND FALSE !(0) [L23] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L25] COND FALSE !(exponent_less_127 < 23) [L41] COND TRUE exponent_less_127 == 128 [L43] RET return x + x; [L76] EXPR round_float(x) VAL [round_float(x)=6, x=10] [L76] float res = round_float(x); [L79] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=6, res == -0.0f && __signbit_float(res) == 1=0, x=10] [L79] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L80] __VERIFIER_error() VAL [res=6, x=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 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 [2018-10-26 22:37:40,482 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:37:40,484 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:37:40,496 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:37:40,496 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:37:40,497 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:37:40,498 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:37:40,501 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:37:40,502 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:37:40,503 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:37:40,504 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:37:40,505 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:37:40,505 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:37:40,506 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:37:40,508 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:37:40,509 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:37:40,510 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:37:40,514 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:37:40,524 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:37:40,526 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:37:40,527 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:37:40,529 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:37:40,536 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:37:40,537 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:37:40,537 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:37:40,538 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:37:40,539 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:37:40,540 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:37:40,540 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:37:40,546 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:37:40,546 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:37:40,547 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:37:40,547 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:37:40,547 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:37:40,548 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:37:40,549 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:37:40,549 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 22:37:40,567 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:37:40,567 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:37:40,568 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:37:40,568 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:37:40,568 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:37:40,569 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:37:40,569 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:37:40,569 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:37:40,569 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:37:40,570 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:37:40,570 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:37:40,570 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:37:40,570 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:37:40,570 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:37:40,570 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:37:40,570 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 22:37:40,571 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 22:37:40,575 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:37:40,575 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:37:40,575 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:37:40,576 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:37:40,576 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:37:40,576 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:37:40,576 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:37:40,576 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:37:40,576 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:37:40,577 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:37:40,577 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:37:40,577 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 22:37:40,577 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:37:40,577 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 22:37:40,577 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 22:37:40,578 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_50c79183-e270-4684-8e13-e3ab5dd231c4/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 -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 [2018-10-26 22:37:40,637 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:37:40,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:37:40,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:37:40,661 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:37:40,661 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:37:40,662 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-10-26 22:37:40,718 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/data/a0d08d625/e64154a58a0044c391fc253384ab112e/FLAG2fc402a4c [2018-10-26 22:37:41,134 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:37:41,135 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/sv-benchmarks/c/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-10-26 22:37:41,146 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/data/a0d08d625/e64154a58a0044c391fc253384ab112e/FLAG2fc402a4c [2018-10-26 22:37:41,164 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/data/a0d08d625/e64154a58a0044c391fc253384ab112e [2018-10-26 22:37:41,168 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:37:41,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:37:41,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:37:41,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:37:41,176 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:37:41,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:37:41" (1/1) ... [2018-10-26 22:37:41,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b9882ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:41, skipping insertion in model container [2018-10-26 22:37:41,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:37:41" (1/1) ... [2018-10-26 22:37:41,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:37:41,217 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:37:41,449 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:37:41,457 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:37:41,490 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:37:41,523 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:37:41,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:41 WrapperNode [2018-10-26 22:37:41,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:37:41,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:37:41,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:37:41,526 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:37:41,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:41" (1/1) ... [2018-10-26 22:37:41,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:41" (1/1) ... [2018-10-26 22:37:41,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:37:41,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:37:41,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:37:41,587 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:37:41,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:41" (1/1) ... [2018-10-26 22:37:41,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:41" (1/1) ... [2018-10-26 22:37:41,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:41" (1/1) ... [2018-10-26 22:37:41,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:41" (1/1) ... [2018-10-26 22:37:41,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:41" (1/1) ... [2018-10-26 22:37:41,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:41" (1/1) ... [2018-10-26 22:37:41,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:41" (1/1) ... [2018-10-26 22:37:41,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:37:41,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:37:41,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:37:41,641 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:37:41,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:37:41,805 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:37:41,805 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:37:41,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:37:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:37:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-10-26 22:37:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-10-26 22:37:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:37:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:37:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-26 22:37:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-26 22:37:42,148 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 22:37:42,386 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 22:37:42,405 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:37:42,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:37:42 BoogieIcfgContainer [2018-10-26 22:37:42,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:37:42,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:37:42,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:37:42,411 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:37:42,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:37:41" (1/3) ... [2018-10-26 22:37:42,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:37:42, skipping insertion in model container [2018-10-26 22:37:42,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:41" (2/3) ... [2018-10-26 22:37:42,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:37:42, skipping insertion in model container [2018-10-26 22:37:42,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:37:42" (3/3) ... [2018-10-26 22:37:42,417 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b_true-unreach-call.c [2018-10-26 22:37:42,428 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:37:42,437 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:37:42,453 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:37:42,482 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:37:42,483 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:37:42,483 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:37:42,483 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:37:42,483 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:37:42,483 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:37:42,484 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:37:42,484 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:37:42,484 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:37:42,502 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-10-26 22:37:42,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 22:37:42,510 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:37:42,511 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:37:42,513 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:37:42,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:37:42,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1066529686, now seen corresponding path program 1 times [2018-10-26 22:37:42,526 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:37:42,526 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 22:37:42,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 22:37:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:37:42,629 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:37:42,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:37:42,646 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:37:42,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:37:42,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:37:42,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:37:42,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:37:42,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:37:42,689 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-10-26 22:37:42,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:37:42,710 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-10-26 22:37:42,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:37:42,712 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 22:37:42,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:37:42,721 INFO L225 Difference]: With dead ends: 68 [2018-10-26 22:37:42,721 INFO L226 Difference]: Without dead ends: 34 [2018-10-26 22:37:42,725 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 [2018-10-26 22:37:42,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-26 22:37:42,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-10-26 22:37:42,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-26 22:37:42,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-10-26 22:37:42,769 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 18 [2018-10-26 22:37:42,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:37:42,770 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-10-26 22:37:42,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:37:42,770 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-10-26 22:37:42,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 22:37:42,771 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:37:42,771 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:37:42,772 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:37:42,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:37:42,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1883902620, now seen corresponding path program 1 times [2018-10-26 22:37:42,773 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:37:42,773 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/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 [2018-10-26 22:37:42,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:37:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:37:42,844 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:37:43,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:37:43,143 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:37:43,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:37:43,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:37:43,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:37:43,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:37:43,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:37:43,162 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 7 states. [2018-10-26 22:37:43,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:37:43,882 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2018-10-26 22:37:43,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 22:37:43,883 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-10-26 22:37:43,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:37:43,886 INFO L225 Difference]: With dead ends: 51 [2018-10-26 22:37:43,886 INFO L226 Difference]: Without dead ends: 35 [2018-10-26 22:37:43,888 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:37:43,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-26 22:37:43,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-10-26 22:37:43,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-26 22:37:43,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-10-26 22:37:43,894 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 19 [2018-10-26 22:37:43,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:37:43,895 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-10-26 22:37:43,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:37:43,896 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-10-26 22:37:43,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 22:37:43,896 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:37:43,897 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] [2018-10-26 22:37:43,897 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:37:43,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:37:43,897 INFO L82 PathProgramCache]: Analyzing trace with hash 407428667, now seen corresponding path program 1 times [2018-10-26 22:37:43,899 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:37:43,899 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 22:37:43,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-10-26 22:37:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:37:43,962 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:37:44,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:37:44,123 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:37:44,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:37:44,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:37:44,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:37:44,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:37:44,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:37:44,137 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 7 states. [2018-10-26 22:37:44,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:37:44,955 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2018-10-26 22:37:44,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 22:37:44,958 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-10-26 22:37:44,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:37:44,959 INFO L225 Difference]: With dead ends: 53 [2018-10-26 22:37:44,959 INFO L226 Difference]: Without dead ends: 32 [2018-10-26 22:37:44,959 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-10-26 22:37:44,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-26 22:37:44,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-10-26 22:37:44,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-26 22:37:44,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-10-26 22:37:44,964 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 20 [2018-10-26 22:37:44,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:37:44,964 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-10-26 22:37:44,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:37:44,965 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-10-26 22:37:44,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 22:37:44,965 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:37:44,965 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:37:44,966 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:37:44,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:37:44,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1907366819, now seen corresponding path program 1 times [2018-10-26 22:37:44,967 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:37:44,970 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/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 [2018-10-26 22:37:44,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:37:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:37:45,027 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:37:45,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:37:45,130 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:37:45,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:37:45,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:37:45,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:37:45,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:37:45,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:37:45,148 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 7 states. [2018-10-26 22:37:45,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:37:45,442 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2018-10-26 22:37:45,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 22:37:45,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-10-26 22:37:45,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:37:45,447 INFO L225 Difference]: With dead ends: 50 [2018-10-26 22:37:45,447 INFO L226 Difference]: Without dead ends: 32 [2018-10-26 22:37:45,448 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-10-26 22:37:45,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-26 22:37:45,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-10-26 22:37:45,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-26 22:37:45,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-10-26 22:37:45,454 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 23 [2018-10-26 22:37:45,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:37:45,454 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-10-26 22:37:45,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:37:45,454 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-10-26 22:37:45,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 22:37:45,456 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:37:45,456 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:37:45,457 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:37:45,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:37:45,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1994573467, now seen corresponding path program 1 times [2018-10-26 22:37:45,457 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:37:45,457 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-10-26 22:37:45,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:37:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:37:45,511 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:37:45,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:37:45,685 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:37:45,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:37:45,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:37:45,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:37:45,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:37:45,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:37:45,705 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 7 states. [2018-10-26 22:37:45,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:37:45,845 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2018-10-26 22:37:45,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:37:45,846 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-10-26 22:37:45,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:37:45,847 INFO L225 Difference]: With dead ends: 35 [2018-10-26 22:37:45,847 INFO L226 Difference]: Without dead ends: 32 [2018-10-26 22:37:45,848 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:37:45,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-26 22:37:45,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-10-26 22:37:45,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-26 22:37:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2018-10-26 22:37:45,853 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 23 [2018-10-26 22:37:45,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:37:45,854 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2018-10-26 22:37:45,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:37:45,854 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2018-10-26 22:37:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 22:37:45,856 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:37:45,856 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, 1] [2018-10-26 22:37:45,857 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:37:45,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:37:45,857 INFO L82 PathProgramCache]: Analyzing trace with hash -123559228, now seen corresponding path program 1 times [2018-10-26 22:37:45,857 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:37:45,858 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-10-26 22:37:45,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:37:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:37:45,942 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:37:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:37:46,467 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:37:46,477 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:37:46,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-10-26 22:37:46,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-26 22:37:46,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-26 22:37:46,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-10-26 22:37:46,479 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 15 states. [2018-10-26 22:37:47,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:37:47,465 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2018-10-26 22:37:47,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-26 22:37:47,470 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 31 [2018-10-26 22:37:47,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:37:47,470 INFO L225 Difference]: With dead ends: 32 [2018-10-26 22:37:47,470 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 22:37:47,471 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2018-10-26 22:37:47,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 22:37:47,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 22:37:47,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 22:37:47,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 22:37:47,472 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-10-26 22:37:47,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:37:47,472 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 22:37:47,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-26 22:37:47,472 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 22:37:47,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 22:37:47,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 22:37:47,781 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-26 22:37:47,783 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:37:47,783 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:37:47,784 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:37:47,784 INFO L428 ceAbstractionStarter]: At program point round_floatENTRY(lines 12 53) the Hoare annotation is: true [2018-10-26 22:37:47,784 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 35) no Hoare annotation was computed. [2018-10-26 22:37:47,784 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 46) no Hoare annotation was computed. [2018-10-26 22:37:47,784 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-10-26 22:37:47,784 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 21) the Hoare annotation is: (= round_float_~x |round_float_#in~x|) [2018-10-26 22:37:47,784 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 21) no Hoare annotation was computed. [2018-10-26 22:37:47,785 INFO L425 ceAbstractionStarter]: For program point round_floatFINAL(lines 12 53) no Hoare annotation was computed. [2018-10-26 22:37:47,785 INFO L425 ceAbstractionStarter]: For program point round_floatEXIT(lines 12 53) no Hoare annotation was computed. [2018-10-26 22:37:47,785 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-10-26 22:37:47,785 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 39) no Hoare annotation was computed. [2018-10-26 22:37:47,785 INFO L425 ceAbstractionStarter]: For program point L47(lines 47 51) no Hoare annotation was computed. [2018-10-26 22:37:47,785 INFO L425 ceAbstractionStarter]: For program point L47-2(lines 12 53) no Hoare annotation was computed. [2018-10-26 22:37:47,785 INFO L425 ceAbstractionStarter]: For program point L47-3(lines 47 51) no Hoare annotation was computed. [2018-10-26 22:37:47,785 INFO L425 ceAbstractionStarter]: For program point L41(lines 41 45) no Hoare annotation was computed. [2018-10-26 22:37:47,786 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:37:47,786 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 22:37:47,786 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:37:47,786 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:37:47,786 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 67 85) the Hoare annotation is: true [2018-10-26 22:37:47,786 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 67 85) no Hoare annotation was computed. [2018-10-26 22:37:47,786 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-10-26 22:37:47,786 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-10-26 22:37:47,787 INFO L421 ceAbstractionStarter]: At program point L79-1(line 79) the Hoare annotation is: (and |main_#t~short8| (exists ((v_round_float_~w~0_14 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v_round_float_~w~0_14) ((_ extract 30 23) v_round_float_~w~0_14) ((_ extract 22 0) v_round_float_~w~0_14)) (fp.neg (_ +zero 8 24))) (= (let ((.cse0 (bvand v_round_float_~w~0_14 (_ bv2147483648 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) main_~res~0))) (= main_~x~0 (fp.neg (_ +zero 8 24)))) [2018-10-26 22:37:47,787 INFO L425 ceAbstractionStarter]: For program point L79-2(line 79) no Hoare annotation was computed. [2018-10-26 22:37:47,793 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-10-26 22:37:47,793 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 67 85) no Hoare annotation was computed. [2018-10-26 22:37:47,794 INFO L421 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (= main_~x~0 (fp.neg (_ +zero 8 24))) [2018-10-26 22:37:47,794 INFO L425 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-10-26 22:37:47,794 INFO L425 ceAbstractionStarter]: For program point L79-4(lines 79 82) no Hoare annotation was computed. [2018-10-26 22:37:47,794 INFO L425 ceAbstractionStarter]: For program point L58-1(lines 58 62) no Hoare annotation was computed. [2018-10-26 22:37:47,794 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 55 65) no Hoare annotation was computed. [2018-10-26 22:37:47,794 INFO L421 ceAbstractionStarter]: At program point L58-3(lines 58 62) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-10-26 22:37:47,794 INFO L425 ceAbstractionStarter]: For program point L58-4(lines 58 62) no Hoare annotation was computed. [2018-10-26 22:37:47,795 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 55 65) the Hoare annotation is: true [2018-10-26 22:37:47,795 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 55 65) no Hoare annotation was computed. [2018-10-26 22:37:47,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:37:47 BoogieIcfgContainer [2018-10-26 22:37:47,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:37:47,816 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:37:47,816 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:37:47,816 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:37:47,817 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:37:42" (3/4) ... [2018-10-26 22:37:47,821 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 22:37:47,829 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 22:37:47,830 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-10-26 22:37:47,830 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 22:37:47,830 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-10-26 22:37:47,838 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-10-26 22:37:47,838 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-10-26 22:37:47,838 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-26 22:37:47,872 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-10-26 22:37:47,873 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-10-26 22:37:47,928 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_50c79183-e270-4684-8e13-e3ab5dd231c4/bin-2019/utaipan/witness.graphml [2018-10-26 22:37:47,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:37:47,932 INFO L168 Benchmark]: Toolchain (without parser) took 6764.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 953.2 MB in the beginning and 848.4 MB in the end (delta: 104.8 MB). Peak memory consumption was 244.8 MB. Max. memory is 11.5 GB. [2018-10-26 22:37:47,933 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:37:47,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.11 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 22:37:47,934 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.09 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:37:47,934 INFO L168 Benchmark]: Boogie Preprocessor took 53.97 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:37:47,934 INFO L168 Benchmark]: RCFGBuilder took 764.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2018-10-26 22:37:47,939 INFO L168 Benchmark]: TraceAbstraction took 5408.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 855.2 MB in the end (delta: 252.8 MB). Peak memory consumption was 252.8 MB. Max. memory is 11.5 GB. [2018-10-26 22:37:47,942 INFO L168 Benchmark]: Witness Printer took 115.49 ms. Allocated memory is still 1.2 GB. Free memory was 855.2 MB in the beginning and 848.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-10-26 22:37:47,944 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 354.11 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 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 61.09 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.97 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 764.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5408.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 855.2 MB in the end (delta: 252.8 MB). Peak memory consumption was 252.8 MB. Max. memory is 11.5 GB. * Witness Printer took 115.49 ms. Allocated memory is still 1.2 GB. Free memory was 855.2 MB in the beginning and 848.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: 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: 17]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 5.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 168 SDtfs, 124 SDslu, 630 SDs, 0 SdLazy, 310 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.4s 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 49 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 128 ConstructedInterpolants, 35 QuantifiedInterpolants, 23109 SizeOfPredicates, 63 NumberOfNonLiveVariables, 487 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...