./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/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 9b4984d971b5a5a3b565edf502e7d7464558f166 ............................................................................................................................................................................................................................................... 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_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/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 9b4984d971b5a5a3b565edf502e7d7464558f166 .................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 16:20:45,664 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 16:20:45,665 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 16:20:45,671 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 16:20:45,671 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 16:20:45,671 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 16:20:45,672 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 16:20:45,673 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 16:20:45,674 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 16:20:45,674 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 16:20:45,675 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 16:20:45,675 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 16:20:45,676 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 16:20:45,676 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 16:20:45,677 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 16:20:45,677 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 16:20:45,677 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 16:20:45,678 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 16:20:45,679 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 16:20:45,680 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 16:20:45,681 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 16:20:45,681 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 16:20:45,683 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 16:20:45,683 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 16:20:45,683 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 16:20:45,684 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 16:20:45,684 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 16:20:45,685 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 16:20:45,685 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 16:20:45,686 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 16:20:45,686 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 16:20:45,687 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 16:20:45,687 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 16:20:45,687 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 16:20:45,687 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 16:20:45,688 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 16:20:45,688 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 16:20:45,696 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 16:20:45,696 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 16:20:45,696 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 16:20:45,696 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 16:20:45,697 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 16:20:45,697 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 16:20:45,697 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 16:20:45,697 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 16:20:45,697 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 16:20:45,697 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 16:20:45,697 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 16:20:45,697 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 16:20:45,698 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 16:20:45,698 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 16:20:45,698 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 16:20:45,698 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 16:20:45,698 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 16:20:45,699 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 16:20:45,699 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 16:20:45,699 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 16:20:45,699 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 16:20:45,699 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 16:20:45,699 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 16:20:45,699 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 16:20:45,699 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 16:20:45,700 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 16:20:45,700 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 16:20:45,700 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 16:20:45,700 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:20:45,700 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 16:20:45,700 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 16:20:45,700 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 16:20:45,700 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 16:20:45,701 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 16:20:45,701 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 16:20:45,701 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 16:20:45,701 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_5be97ddf-c631-43ae-9633-91b1a418b0a0/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 -> 9b4984d971b5a5a3b565edf502e7d7464558f166 [2018-12-09 16:20:45,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 16:20:45,728 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 16:20:45,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 16:20:45,731 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 16:20:45,731 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 16:20:45,732 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i [2018-12-09 16:20:45,772 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/data/22741f9ef/f6bbeff31cbb41f2a39ec1e07628fd7b/FLAGb62b0dc43 [2018-12-09 16:20:46,107 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 16:20:46,107 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i [2018-12-09 16:20:46,111 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/data/22741f9ef/f6bbeff31cbb41f2a39ec1e07628fd7b/FLAGb62b0dc43 [2018-12-09 16:20:46,510 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/data/22741f9ef/f6bbeff31cbb41f2a39ec1e07628fd7b [2018-12-09 16:20:46,512 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 16:20:46,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 16:20:46,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 16:20:46,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 16:20:46,517 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 16:20:46,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:20:46" (1/1) ... [2018-12-09 16:20:46,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96971f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:46, skipping insertion in model container [2018-12-09 16:20:46,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:20:46" (1/1) ... [2018-12-09 16:20:46,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 16:20:46,537 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 16:20:46,618 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:20:46,621 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 16:20:46,632 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:20:46,640 INFO L195 MainTranslator]: Completed translation [2018-12-09 16:20:46,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:46 WrapperNode [2018-12-09 16:20:46,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 16:20:46,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 16:20:46,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 16:20:46,641 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 16:20:46,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:46" (1/1) ... [2018-12-09 16:20:46,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:46" (1/1) ... [2018-12-09 16:20:46,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 16:20:46,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 16:20:46,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 16:20:46,653 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 16:20:46,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:46" (1/1) ... [2018-12-09 16:20:46,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:46" (1/1) ... [2018-12-09 16:20:46,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:46" (1/1) ... [2018-12-09 16:20:46,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:46" (1/1) ... [2018-12-09 16:20:46,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:46" (1/1) ... [2018-12-09 16:20:46,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:46" (1/1) ... [2018-12-09 16:20:46,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:46" (1/1) ... [2018-12-09 16:20:46,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 16:20:46,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 16:20:46,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 16:20:46,665 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 16:20:46,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:20:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 16:20:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 16:20:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 16:20:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 16:20:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 16:20:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 16:20:46,802 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 16:20:46,802 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 16:20:46,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:20:46 BoogieIcfgContainer [2018-12-09 16:20:46,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 16:20:46,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 16:20:46,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 16:20:46,806 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 16:20:46,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:20:46" (1/3) ... [2018-12-09 16:20:46,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657700ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:20:46, skipping insertion in model container [2018-12-09 16:20:46,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:46" (2/3) ... [2018-12-09 16:20:46,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657700ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:20:46, skipping insertion in model container [2018-12-09 16:20:46,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:20:46" (3/3) ... [2018-12-09 16:20:46,808 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1_false-unreach-call_true-termination.i [2018-12-09 16:20:46,814 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 16:20:46,818 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 16:20:46,828 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 16:20:46,853 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 16:20:46,853 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 16:20:46,853 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 16:20:46,853 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 16:20:46,853 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 16:20:46,854 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 16:20:46,854 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 16:20:46,854 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 16:20:46,864 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-12-09 16:20:46,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 16:20:46,867 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:20:46,868 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:20:46,869 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:20:46,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:20:46,872 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-12-09 16:20:46,873 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:20:46,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:20:46,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:20:46,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:20:46,902 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:20:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:20:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:20:46,937 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 16:20:46,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:20:46 BoogieIcfgContainer [2018-12-09 16:20:46,951 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 16:20:46,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 16:20:46,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 16:20:46,951 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 16:20:46,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:20:46" (3/4) ... [2018-12-09 16:20:46,954 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 16:20:46,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 16:20:46,954 INFO L168 Benchmark]: Toolchain (without parser) took 441.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 961.4 MB in the beginning and 1.1 GB in the end (delta: -135.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:20:46,955 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:20:46,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 126.37 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 16:20:46,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.00 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:20:46,956 INFO L168 Benchmark]: Boogie Preprocessor took 11.76 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:20:46,956 INFO L168 Benchmark]: RCFGBuilder took 137.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -159.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-12-09 16:20:46,957 INFO L168 Benchmark]: TraceAbstraction took 147.03 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-09 16:20:46,957 INFO L168 Benchmark]: Witness Printer took 2.86 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-09 16:20:46,959 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 126.37 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.00 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.76 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 137.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -159.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 147.03 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.86 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0, x=0] [L14] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=0, x=0] [L15] __VERIFIER_error() VAL [IN=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 16:20:48,214 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 16:20:48,215 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 16:20:48,221 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 16:20:48,221 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 16:20:48,222 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 16:20:48,222 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 16:20:48,223 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 16:20:48,224 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 16:20:48,225 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 16:20:48,225 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 16:20:48,225 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 16:20:48,226 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 16:20:48,226 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 16:20:48,227 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 16:20:48,227 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 16:20:48,227 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 16:20:48,228 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 16:20:48,229 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 16:20:48,230 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 16:20:48,230 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 16:20:48,231 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 16:20:48,232 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 16:20:48,232 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 16:20:48,232 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 16:20:48,233 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 16:20:48,233 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 16:20:48,234 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 16:20:48,234 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 16:20:48,235 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 16:20:48,235 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 16:20:48,235 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 16:20:48,235 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 16:20:48,235 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 16:20:48,236 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 16:20:48,236 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 16:20:48,236 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 16:20:48,244 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 16:20:48,244 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 16:20:48,244 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 16:20:48,245 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 16:20:48,245 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 16:20:48,245 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 16:20:48,245 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 16:20:48,245 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 16:20:48,245 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 16:20:48,245 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 16:20:48,246 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 16:20:48,246 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 16:20:48,246 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 16:20:48,246 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 16:20:48,246 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 16:20:48,246 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 16:20:48,246 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 16:20:48,246 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 16:20:48,246 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 16:20:48,246 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 16:20:48,247 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 16:20:48,247 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 16:20:48,247 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 16:20:48,247 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 16:20:48,247 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 16:20:48,247 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 16:20:48,247 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 16:20:48,247 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:20:48,247 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 16:20:48,247 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 16:20:48,247 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 16:20:48,248 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 16:20:48,248 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 16:20:48,248 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 16:20:48,248 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 16:20:48,248 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_5be97ddf-c631-43ae-9633-91b1a418b0a0/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 -> 9b4984d971b5a5a3b565edf502e7d7464558f166 [2018-12-09 16:20:48,266 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 16:20:48,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 16:20:48,278 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 16:20:48,280 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 16:20:48,280 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 16:20:48,280 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i [2018-12-09 16:20:48,320 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/data/ea353435c/1d2287b6af9b47aabd64bc4bd8c82d2b/FLAG5a920c5a4 [2018-12-09 16:20:48,656 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 16:20:48,657 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i [2018-12-09 16:20:48,660 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/data/ea353435c/1d2287b6af9b47aabd64bc4bd8c82d2b/FLAG5a920c5a4 [2018-12-09 16:20:49,052 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/data/ea353435c/1d2287b6af9b47aabd64bc4bd8c82d2b [2018-12-09 16:20:49,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 16:20:49,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 16:20:49,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 16:20:49,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 16:20:49,062 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 16:20:49,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:20:49" (1/1) ... [2018-12-09 16:20:49,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e29c583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:49, skipping insertion in model container [2018-12-09 16:20:49,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:20:49" (1/1) ... [2018-12-09 16:20:49,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 16:20:49,085 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 16:20:49,171 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:20:49,175 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 16:20:49,185 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:20:49,194 INFO L195 MainTranslator]: Completed translation [2018-12-09 16:20:49,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:49 WrapperNode [2018-12-09 16:20:49,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 16:20:49,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 16:20:49,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 16:20:49,195 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 16:20:49,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:49" (1/1) ... [2018-12-09 16:20:49,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:49" (1/1) ... [2018-12-09 16:20:49,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 16:20:49,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 16:20:49,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 16:20:49,208 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 16:20:49,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:49" (1/1) ... [2018-12-09 16:20:49,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:49" (1/1) ... [2018-12-09 16:20:49,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:49" (1/1) ... [2018-12-09 16:20:49,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:49" (1/1) ... [2018-12-09 16:20:49,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:49" (1/1) ... [2018-12-09 16:20:49,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:49" (1/1) ... [2018-12-09 16:20:49,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:49" (1/1) ... [2018-12-09 16:20:49,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 16:20:49,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 16:20:49,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 16:20:49,222 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 16:20:49,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:20:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 16:20:49,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 16:20:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 16:20:49,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 16:20:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 16:20:49,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 16:20:51,419 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 16:20:51,419 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 16:20:51,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:20:51 BoogieIcfgContainer [2018-12-09 16:20:51,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 16:20:51,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 16:20:51,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 16:20:51,422 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 16:20:51,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:20:49" (1/3) ... [2018-12-09 16:20:51,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51782bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:20:51, skipping insertion in model container [2018-12-09 16:20:51,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:49" (2/3) ... [2018-12-09 16:20:51,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51782bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:20:51, skipping insertion in model container [2018-12-09 16:20:51,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:20:51" (3/3) ... [2018-12-09 16:20:51,424 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1_false-unreach-call_true-termination.i [2018-12-09 16:20:51,430 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 16:20:51,435 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 16:20:51,445 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 16:20:51,461 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 16:20:51,462 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 16:20:51,462 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 16:20:51,462 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 16:20:51,463 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 16:20:51,463 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 16:20:51,463 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 16:20:51,463 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 16:20:51,463 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 16:20:51,474 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-12-09 16:20:51,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 16:20:51,477 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:20:51,478 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:20:51,479 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:20:51,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:20:51,482 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-12-09 16:20:51,484 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 16:20:51,485 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 16:20:51,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:21:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:21:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:21:57,277 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 16:21:57,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:21:57 BoogieIcfgContainer [2018-12-09 16:21:57,294 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 16:21:57,294 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 16:21:57,294 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 16:21:57,294 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 16:21:57,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:20:51" (3/4) ... [2018-12-09 16:21:57,296 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 16:21:57,319 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5be97ddf-c631-43ae-9633-91b1a418b0a0/bin-2019/utaipan/witness.graphml [2018-12-09 16:21:57,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 16:21:57,320 INFO L168 Benchmark]: Toolchain (without parser) took 68264.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:21:57,321 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:21:57,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.96 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 16:21:57,321 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.21 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:21:57,322 INFO L168 Benchmark]: Boogie Preprocessor took 13.63 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 16:21:57,322 INFO L168 Benchmark]: RCFGBuilder took 2197.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -180.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-09 16:21:57,322 INFO L168 Benchmark]: TraceAbstraction took 65873.75 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: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2018-12-09 16:21:57,323 INFO L168 Benchmark]: Witness Printer took 25.73 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-12-09 16:21:57,325 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.96 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.21 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.63 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2197.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -180.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 65873.75 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: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. * Witness Printer took 25.73 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.97540283203125, result=1.3914170265197754, x=0.97540283203125] [L14] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=0.97540283203125, result=1.3914170265197754, x=0.97540283203125] [L15] __VERIFIER_error() VAL [IN=0.97540283203125, result=1.3914170265197754, x=0.97540283203125] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 65.8s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 52.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...