./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_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/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 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_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/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 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 01:26:30,530 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:26:30,531 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:26:30,537 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:26:30,537 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:26:30,538 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:26:30,538 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:26:30,539 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:26:30,540 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:26:30,540 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:26:30,540 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:26:30,540 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:26:30,541 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:26:30,541 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:26:30,542 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:26:30,542 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:26:30,543 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:26:30,543 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:26:30,544 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:26:30,545 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:26:30,545 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:26:30,546 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:26:30,547 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:26:30,547 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:26:30,547 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:26:30,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:26:30,548 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:26:30,548 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:26:30,549 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:26:30,549 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:26:30,549 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:26:30,550 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:26:30,550 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:26:30,550 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:26:30,550 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:26:30,551 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:26:30,551 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 01:26:30,557 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:26:30,558 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:26:30,558 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:26:30,558 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:26:30,559 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 01:26:30,559 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 01:26:30,559 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 01:26:30,559 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:26:30,559 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:26:30,559 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 01:26:30,559 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:26:30,559 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:26:30,559 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:26:30,559 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:26:30,560 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:26:30,560 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:26:30,560 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:26:30,560 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 01:26:30,560 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:26:30,560 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:26:30,560 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:26:30,560 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:26:30,560 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:26:30,560 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:26:30,560 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:26:30,561 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:26:30,561 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:26:30,561 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 01:26:30,561 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:26:30,561 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 01:26:30,561 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_0d73bacf-898e-4b94-81b0-656e689adec3/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 -> 9b4984d971b5a5a3b565edf502e7d7464558f166 [2018-12-09 01:26:30,578 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:26:30,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:26:30,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:26:30,587 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:26:30,587 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:26:30,588 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i [2018-12-09 01:26:30,622 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/data/f4000cc20/18704a864caf4bf7a97634921ff98d6c/FLAG24f36a12d [2018-12-09 01:26:30,957 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:26:30,957 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i [2018-12-09 01:26:30,961 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/data/f4000cc20/18704a864caf4bf7a97634921ff98d6c/FLAG24f36a12d [2018-12-09 01:26:31,354 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/data/f4000cc20/18704a864caf4bf7a97634921ff98d6c [2018-12-09 01:26:31,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:26:31,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:26:31,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:26:31,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:26:31,360 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:26:31,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:26:31" (1/1) ... [2018-12-09 01:26:31,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40bf1ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:31, skipping insertion in model container [2018-12-09 01:26:31,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:26:31" (1/1) ... [2018-12-09 01:26:31,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:26:31,379 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:26:31,469 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:26:31,471 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:26:31,480 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:26:31,488 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:26:31,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:31 WrapperNode [2018-12-09 01:26:31,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:26:31,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:26:31,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:26:31,489 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:26:31,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:31" (1/1) ... [2018-12-09 01:26:31,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:31" (1/1) ... [2018-12-09 01:26:31,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:26:31,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:26:31,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:26:31,500 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:26:31,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:31" (1/1) ... [2018-12-09 01:26:31,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:31" (1/1) ... [2018-12-09 01:26:31,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:31" (1/1) ... [2018-12-09 01:26:31,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:31" (1/1) ... [2018-12-09 01:26:31,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:31" (1/1) ... [2018-12-09 01:26:31,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:31" (1/1) ... [2018-12-09 01:26:31,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:31" (1/1) ... [2018-12-09 01:26:31,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:26:31,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:26:31,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:26:31,510 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:26:31,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/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 [2018-12-09 01:26:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:26:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:26:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:26:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:26:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:26:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:26:31,633 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:26:31,634 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 01:26:31,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:26:31 BoogieIcfgContainer [2018-12-09 01:26:31,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:26:31,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:26:31,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:26:31,636 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:26:31,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:26:31" (1/3) ... [2018-12-09 01:26:31,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce9152f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:26:31, skipping insertion in model container [2018-12-09 01:26:31,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:31" (2/3) ... [2018-12-09 01:26:31,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce9152f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:26:31, skipping insertion in model container [2018-12-09 01:26:31,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:26:31" (3/3) ... [2018-12-09 01:26:31,638 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1_false-unreach-call_true-termination.i [2018-12-09 01:26:31,644 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:26:31,647 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:26:31,656 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:26:31,673 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 01:26:31,673 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:26:31,673 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:26:31,673 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:26:31,673 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:26:31,673 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:26:31,673 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:26:31,673 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:26:31,673 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:26:31,683 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-12-09 01:26:31,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 01:26:31,686 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:26:31,686 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:26:31,687 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:26:31,690 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:26:31,690 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-12-09 01:26:31,691 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 01:26:31,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 01:26:31,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:26:31,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:26:31,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:26:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:26:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:26:31,752 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 01:26:31,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:26:31 BoogieIcfgContainer [2018-12-09 01:26:31,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:26:31,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:26:31,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:26:31,765 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:26:31,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:26:31" (3/4) ... [2018-12-09 01:26:31,767 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 01:26:31,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:26:31,768 INFO L168 Benchmark]: Toolchain (without parser) took 411.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -126.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:26:31,769 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:26:31,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 130.24 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:26:31,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.28 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:26:31,770 INFO L168 Benchmark]: Boogie Preprocessor took 10.19 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:26:31,770 INFO L168 Benchmark]: RCFGBuilder took 123.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -161.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-12-09 01:26:31,771 INFO L168 Benchmark]: TraceAbstraction took 130.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-12-09 01:26:31,771 INFO L168 Benchmark]: Witness Printer took 2.57 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:26:31,772 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 130.24 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.28 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.19 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 123.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -161.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 130.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.57 ms. Allocated memory is still 1.1 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 < 1.39f) 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, 0.0s 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 01:26:33,011 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:26:33,012 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:26:33,018 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:26:33,018 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:26:33,018 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:26:33,019 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:26:33,020 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:26:33,021 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:26:33,021 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:26:33,021 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:26:33,022 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:26:33,022 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:26:33,022 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:26:33,023 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:26:33,023 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:26:33,024 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:26:33,024 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:26:33,025 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:26:33,026 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:26:33,027 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:26:33,027 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:26:33,028 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:26:33,028 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:26:33,029 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:26:33,029 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:26:33,029 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:26:33,030 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:26:33,030 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:26:33,031 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:26:33,031 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:26:33,031 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:26:33,031 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:26:33,031 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:26:33,032 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:26:33,032 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:26:33,032 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-09 01:26:33,039 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:26:33,040 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:26:33,040 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:26:33,040 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:26:33,041 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 01:26:33,041 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 01:26:33,041 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 01:26:33,041 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:26:33,041 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:26:33,041 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:26:33,041 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:26:33,041 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:26:33,041 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:26:33,041 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:26:33,042 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 01:26:33,042 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 01:26:33,042 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:26:33,042 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:26:33,042 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 01:26:33,042 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:26:33,042 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:26:33,042 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:26:33,042 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:26:33,042 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:26:33,042 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:26:33,043 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:26:33,043 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:26:33,043 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:26:33,043 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-09 01:26:33,043 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:26:33,043 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 01:26:33,043 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 01:26:33,043 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_0d73bacf-898e-4b94-81b0-656e689adec3/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 -> 9b4984d971b5a5a3b565edf502e7d7464558f166 [2018-12-09 01:26:33,060 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:26:33,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:26:33,070 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:26:33,070 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:26:33,071 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:26:33,071 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i [2018-12-09 01:26:33,108 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/data/e45b49088/79d7ff6c3e2c4b4fb5e71f3ee673b72e/FLAGd79a8271a [2018-12-09 01:26:33,436 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:26:33,436 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/sv-benchmarks/c/floats-cdfpl/square_1_false-unreach-call_true-termination.i [2018-12-09 01:26:33,440 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/data/e45b49088/79d7ff6c3e2c4b4fb5e71f3ee673b72e/FLAGd79a8271a [2018-12-09 01:26:33,448 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/data/e45b49088/79d7ff6c3e2c4b4fb5e71f3ee673b72e [2018-12-09 01:26:33,451 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:26:33,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:26:33,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:26:33,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:26:33,455 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:26:33,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:26:33" (1/1) ... [2018-12-09 01:26:33,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b45ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:33, skipping insertion in model container [2018-12-09 01:26:33,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:26:33" (1/1) ... [2018-12-09 01:26:33,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:26:33,471 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:26:33,567 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:26:33,571 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:26:33,581 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:26:33,589 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:26:33,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:33 WrapperNode [2018-12-09 01:26:33,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:26:33,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:26:33,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:26:33,590 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:26:33,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:33" (1/1) ... [2018-12-09 01:26:33,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:33" (1/1) ... [2018-12-09 01:26:33,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:26:33,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:26:33,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:26:33,604 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:26:33,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:33" (1/1) ... [2018-12-09 01:26:33,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:33" (1/1) ... [2018-12-09 01:26:33,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:33" (1/1) ... [2018-12-09 01:26:33,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:33" (1/1) ... [2018-12-09 01:26:33,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:33" (1/1) ... [2018-12-09 01:26:33,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:33" (1/1) ... [2018-12-09 01:26:33,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:33" (1/1) ... [2018-12-09 01:26:33,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:26:33,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:26:33,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:26:33,618 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:26:33,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/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 [2018-12-09 01:26:33,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:26:33,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:26:33,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:26:33,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:26:33,679 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:26:33,679 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:26:35,809 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:26:35,809 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 01:26:35,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:26:35 BoogieIcfgContainer [2018-12-09 01:26:35,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:26:35,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:26:35,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:26:35,812 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:26:35,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:26:33" (1/3) ... [2018-12-09 01:26:35,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216bac88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:26:35, skipping insertion in model container [2018-12-09 01:26:35,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:33" (2/3) ... [2018-12-09 01:26:35,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216bac88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:26:35, skipping insertion in model container [2018-12-09 01:26:35,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:26:35" (3/3) ... [2018-12-09 01:26:35,814 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1_false-unreach-call_true-termination.i [2018-12-09 01:26:35,819 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:26:35,823 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:26:35,832 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:26:35,848 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 01:26:35,848 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:26:35,848 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:26:35,848 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:26:35,849 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:26:35,849 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:26:35,849 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:26:35,849 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:26:35,849 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:26:35,858 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-12-09 01:26:35,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 01:26:35,861 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:26:35,862 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:26:35,863 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:26:35,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:26:35,866 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-12-09 01:26:35,868 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:26:35,869 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/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 [2018-12-09 01:26:35,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:27:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:27:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:27:41,729 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 01:27:41,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:27:41 BoogieIcfgContainer [2018-12-09 01:27:41,745 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:27:41,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:27:41,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:27:41,745 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:27:41,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:26:35" (3/4) ... [2018-12-09 01:27:41,747 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 01:27:41,771 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0d73bacf-898e-4b94-81b0-656e689adec3/bin-2019/uautomizer/witness.graphml [2018-12-09 01:27:41,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:27:41,771 INFO L168 Benchmark]: Toolchain (without parser) took 68320.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -121.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:27:41,772 INFO L168 Benchmark]: CDTParser took 0.11 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 01:27:41,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.89 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 01:27:41,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.74 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 01:27:41,773 INFO L168 Benchmark]: Boogie Preprocessor took 13.37 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 01:27:41,773 INFO L168 Benchmark]: RCFGBuilder took 2191.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -152.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-09 01:27:41,774 INFO L168 Benchmark]: TraceAbstraction took 65935.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-12-09 01:27:41,774 INFO L168 Benchmark]: Witness Printer took 25.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:27:41,776 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 137.89 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 13.74 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 13.37 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 2191.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -152.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 65935.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Witness Printer took 25.84 ms. Allocated memory is still 1.1 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=0.97540283203125, 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, 65.9s 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, 52.3s 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...