./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i --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_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57828c11c74ba018eaf70a217208a01187285749 .................................................................................................................................................................................................................................. 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_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57828c11c74ba018eaf70a217208a01187285749 ........................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 03:40:06,417 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:40:06,418 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:40:06,426 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:40:06,426 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:40:06,427 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:40:06,428 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:40:06,429 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:40:06,430 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:40:06,430 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:40:06,431 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:40:06,431 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:40:06,432 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:40:06,432 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:40:06,433 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:40:06,433 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:40:06,434 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:40:06,435 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:40:06,436 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:40:06,436 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:40:06,437 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:40:06,438 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:40:06,440 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:40:06,440 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:40:06,440 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:40:06,440 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:40:06,441 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:40:06,441 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:40:06,442 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:40:06,442 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:40:06,443 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:40:06,443 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:40:06,443 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:40:06,444 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:40:06,444 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:40:06,445 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:40:06,445 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 03:40:06,452 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:40:06,452 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:40:06,453 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 03:40:06,453 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 03:40:06,454 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 03:40:06,454 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 03:40:06,454 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 03:40:06,454 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:40:06,454 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:40:06,454 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:40:06,455 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:40:06,455 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:40:06,455 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 03:40:06,455 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 03:40:06,455 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 03:40:06,455 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:40:06,455 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:40:06,455 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 03:40:06,456 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:40:06,456 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:40:06,456 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 03:40:06,456 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 03:40:06,456 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:40:06,456 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:40:06,456 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 03:40:06,457 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 03:40:06,457 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 03:40:06,457 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 03:40:06,457 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 03:40:06,457 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_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer 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 -> Automizer 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 -> 57828c11c74ba018eaf70a217208a01187285749 [2018-11-10 03:40:06,480 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:40:06,489 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:40:06,492 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:40:06,493 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:40:06,493 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:40:06,494 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i [2018-11-10 03:40:06,530 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/data/4591f9041/928d02db8c464ad19e3623fcc85d8b3e/FLAG1aaa4f180 [2018-11-10 03:40:06,927 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:40:06,927 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/sv-benchmarks/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i [2018-11-10 03:40:06,931 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/data/4591f9041/928d02db8c464ad19e3623fcc85d8b3e/FLAG1aaa4f180 [2018-11-10 03:40:06,940 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/data/4591f9041/928d02db8c464ad19e3623fcc85d8b3e [2018-11-10 03:40:06,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:40:06,943 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 03:40:06,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:40:06,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:40:06,947 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:40:06,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:40:06" (1/1) ... [2018-11-10 03:40:06,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f75b244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:06, skipping insertion in model container [2018-11-10 03:40:06,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:40:06" (1/1) ... [2018-11-10 03:40:06,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:40:06,971 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:40:07,065 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:40:07,067 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:40:07,077 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:40:07,084 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:40:07,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:07 WrapperNode [2018-11-10 03:40:07,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:40:07,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:40:07,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:40:07,085 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:40:07,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:07" (1/1) ... [2018-11-10 03:40:07,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:07" (1/1) ... [2018-11-10 03:40:07,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:07" (1/1) ... [2018-11-10 03:40:07,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:07" (1/1) ... [2018-11-10 03:40:07,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:07" (1/1) ... [2018-11-10 03:40:07,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:07" (1/1) ... [2018-11-10 03:40:07,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:07" (1/1) ... [2018-11-10 03:40:07,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:40:07,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:40:07,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:40:07,108 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:40:07,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:40:07,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 03:40:07,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:40:07,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 03:40:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 03:40:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 03:40:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 03:40:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 03:40:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 03:40:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:40:07,274 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:40:07,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:40:07 BoogieIcfgContainer [2018-11-10 03:40:07,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:40:07,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 03:40:07,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 03:40:07,278 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 03:40:07,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:40:06" (1/3) ... [2018-11-10 03:40:07,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b855a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:40:07, skipping insertion in model container [2018-11-10 03:40:07,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:07" (2/3) ... [2018-11-10 03:40:07,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b855a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:40:07, skipping insertion in model container [2018-11-10 03:40:07,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:40:07" (3/3) ... [2018-11-10 03:40:07,281 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3_false-unreach-call_true-termination.i [2018-11-10 03:40:07,287 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 03:40:07,292 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 03:40:07,301 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 03:40:07,320 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 03:40:07,321 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 03:40:07,321 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 03:40:07,321 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 03:40:07,321 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:40:07,321 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:40:07,321 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 03:40:07,321 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:40:07,322 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 03:40:07,332 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-10 03:40:07,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 03:40:07,336 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:40:07,337 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:40:07,338 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:40:07,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:07,342 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-10 03:40:07,343 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:40:07,344 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:40:07,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:07,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:40:07,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:07,411 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 03:40:07,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 03:40:07 BoogieIcfgContainer [2018-11-10 03:40:07,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 03:40:07,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:40:07,426 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:40:07,426 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:40:07,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:40:07" (3/4) ... [2018-11-10 03:40:07,429 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 03:40:07,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:40:07,430 INFO L168 Benchmark]: Toolchain (without parser) took 487.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 963.4 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:40:07,431 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:40:07,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.50 ms. Allocated memory is still 1.0 GB. Free memory was 963.4 MB in the beginning and 952.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:40:07,432 INFO L168 Benchmark]: Boogie Preprocessor took 21.89 ms. Allocated memory is still 1.0 GB. Free memory is still 952.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:40:07,433 INFO L168 Benchmark]: RCFGBuilder took 167.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 952.7 MB in the beginning and 1.2 GB in the end (delta: -205.7 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-10 03:40:07,433 INFO L168 Benchmark]: TraceAbstraction took 149.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-11-10 03:40:07,434 INFO L168 Benchmark]: Witness Printer took 3.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:40:07,436 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 141.50 ms. Allocated memory is still 1.0 GB. Free memory was 963.4 MB in the beginning and 952.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.89 ms. Allocated memory is still 1.0 GB. Free memory is still 952.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 167.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 952.7 MB in the beginning and 1.2 GB in the end (delta: -205.7 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 149.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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 < 1.39843f) 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 0.1.23-1dbac8b [2018-11-10 03:40:08,882 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:40:08,883 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:40:08,892 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:40:08,892 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:40:08,893 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:40:08,894 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:40:08,895 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:40:08,896 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:40:08,897 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:40:08,898 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:40:08,898 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:40:08,898 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:40:08,899 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:40:08,900 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:40:08,900 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:40:08,901 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:40:08,902 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:40:08,903 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:40:08,904 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:40:08,905 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:40:08,906 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:40:08,907 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:40:08,907 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:40:08,907 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:40:08,908 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:40:08,909 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:40:08,909 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:40:08,910 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:40:08,910 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:40:08,911 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:40:08,911 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:40:08,911 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:40:08,911 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:40:08,912 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:40:08,912 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:40:08,913 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 03:40:08,922 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:40:08,922 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:40:08,923 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 03:40:08,923 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 03:40:08,924 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 03:40:08,924 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 03:40:08,924 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 03:40:08,924 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:40:08,924 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:40:08,924 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:40:08,924 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:40:08,925 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 03:40:08,925 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 03:40:08,925 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 03:40:08,925 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 03:40:08,925 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 03:40:08,925 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:40:08,925 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:40:08,925 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 03:40:08,926 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:40:08,926 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:40:08,926 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 03:40:08,926 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 03:40:08,926 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:40:08,926 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:40:08,926 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 03:40:08,927 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 03:40:08,927 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 03:40:08,927 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 03:40:08,927 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 03:40:08,927 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 03:40:08,927 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_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer 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 -> Automizer 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 -> 57828c11c74ba018eaf70a217208a01187285749 [2018-11-10 03:40:08,957 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:40:08,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:40:08,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:40:08,972 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:40:08,973 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:40:08,973 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i [2018-11-10 03:40:09,025 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/data/d465b2b38/12370af7d82445188b1f3053bcefb95f/FLAGe3e761e92 [2018-11-10 03:40:09,323 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:40:09,324 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/sv-benchmarks/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i [2018-11-10 03:40:09,327 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/data/d465b2b38/12370af7d82445188b1f3053bcefb95f/FLAGe3e761e92 [2018-11-10 03:40:09,336 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/data/d465b2b38/12370af7d82445188b1f3053bcefb95f [2018-11-10 03:40:09,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:40:09,339 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 03:40:09,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:40:09,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:40:09,343 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:40:09,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:40:09" (1/1) ... [2018-11-10 03:40:09,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161d2824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:09, skipping insertion in model container [2018-11-10 03:40:09,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:40:09" (1/1) ... [2018-11-10 03:40:09,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:40:09,368 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:40:09,475 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:40:09,480 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:40:09,490 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:40:09,499 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:40:09,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:09 WrapperNode [2018-11-10 03:40:09,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:40:09,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:40:09,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:40:09,500 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:40:09,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:09" (1/1) ... [2018-11-10 03:40:09,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:09" (1/1) ... [2018-11-10 03:40:09,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:09" (1/1) ... [2018-11-10 03:40:09,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:09" (1/1) ... [2018-11-10 03:40:09,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:09" (1/1) ... [2018-11-10 03:40:09,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:09" (1/1) ... [2018-11-10 03:40:09,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:09" (1/1) ... [2018-11-10 03:40:09,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:40:09,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:40:09,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:40:09,519 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:40:09,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:40:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 03:40:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:40:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 03:40:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 03:40:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 03:40:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 03:40:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 03:40:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 03:40:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:40:11,742 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:40:11,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:40:11 BoogieIcfgContainer [2018-11-10 03:40:11,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:40:11,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 03:40:11,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 03:40:11,745 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 03:40:11,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:40:09" (1/3) ... [2018-11-10 03:40:11,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aaaeb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:40:11, skipping insertion in model container [2018-11-10 03:40:11,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:09" (2/3) ... [2018-11-10 03:40:11,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aaaeb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:40:11, skipping insertion in model container [2018-11-10 03:40:11,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:40:11" (3/3) ... [2018-11-10 03:40:11,748 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3_false-unreach-call_true-termination.i [2018-11-10 03:40:11,754 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 03:40:11,759 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 03:40:11,768 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 03:40:11,788 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 03:40:11,788 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 03:40:11,788 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 03:40:11,789 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 03:40:11,789 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:40:11,789 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:40:11,789 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 03:40:11,789 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:40:11,789 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 03:40:11,799 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-10 03:40:11,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 03:40:11,802 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:40:11,803 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:40:11,804 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:40:11,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:11,808 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-10 03:40:11,811 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 03:40:11,811 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 03:40:11,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:40:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:43:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:43:02,690 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 03:43:02,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 03:43:02 BoogieIcfgContainer [2018-11-10 03:43:02,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 03:43:02,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:43:02,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:43:02,707 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:43:02,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:40:11" (3/4) ... [2018-11-10 03:43:02,709 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 03:43:02,734 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_55da12bb-ebe3-4d3c-a85d-c0ebcab64fdd/bin-2019/uautomizer/witness.graphml [2018-11-10 03:43:02,734 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:43:02,735 INFO L168 Benchmark]: Toolchain (without parser) took 173397.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:43:02,736 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:43:02,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.94 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:43:02,737 INFO L168 Benchmark]: Boogie Preprocessor took 19.08 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 03:43:02,737 INFO L168 Benchmark]: RCFGBuilder took 2223.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -188.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:43:02,738 INFO L168 Benchmark]: TraceAbstraction took 170963.09 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-10 03:43:02,738 INFO L168 Benchmark]: Witness Printer took 28.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:43:02,740 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 159.94 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.08 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2223.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -188.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 170963.09 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Witness Printer took 28.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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=0.9999802112579346, result=1.3984318971633911, x=0.9999802112579346] [L14] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999802112579346, result=1.3984318971633911, x=0.9999802112579346] [L15] __VERIFIER_error() VAL [IN=0.9999802112579346, result=1.3984318971633911, x=0.9999802112579346] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 170.9s 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, 40.5s 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...