./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.1.24-2e94e6a [2018-12-31 02:22:55,988 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:22:55,990 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:22:56,003 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:22:56,004 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:22:56,005 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:22:56,007 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:22:56,016 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:22:56,018 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:22:56,019 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:22:56,020 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:22:56,020 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:22:56,021 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:22:56,023 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:22:56,024 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:22:56,025 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:22:56,026 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:22:56,028 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:22:56,030 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:22:56,032 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:22:56,033 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:22:56,035 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:22:56,038 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:22:56,038 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:22:56,038 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:22:56,039 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:22:56,041 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:22:56,042 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:22:56,042 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:22:56,044 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:22:56,044 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:22:56,045 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:22:56,046 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:22:56,046 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:22:56,047 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:22:56,048 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:22:56,049 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:22:56,065 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:22:56,065 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:22:56,067 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:22:56,067 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:22:56,067 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:22:56,068 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:22:56,068 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:22:56,068 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:22:56,068 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:22:56,068 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:22:56,068 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:22:56,069 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:22:56,070 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:22:56,070 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:22:56,070 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:22:56,070 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:22:56,070 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:22:56,071 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:22:56,071 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:22:56,072 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:22:56,072 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:22:56,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:22:56,072 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:22:56,072 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:22:56,073 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:22:56,073 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:22:56,073 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:22:56,073 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:22:56,073 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 [2018-12-31 02:22:56,112 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:22:56,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:22:56,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:22:56,132 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:22:56,132 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:22:56,133 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i [2018-12-31 02:22:56,202 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb12aab80/d28259f5a678466b995e748198e7ccdb/FLAG397190349 [2018-12-31 02:22:56,667 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:22:56,667 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i [2018-12-31 02:22:56,675 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb12aab80/d28259f5a678466b995e748198e7ccdb/FLAG397190349 [2018-12-31 02:22:56,993 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb12aab80/d28259f5a678466b995e748198e7ccdb [2018-12-31 02:22:56,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:22:57,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:22:57,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:22:57,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:22:57,008 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:22:57,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:22:56" (1/1) ... [2018-12-31 02:22:57,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d35117e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:22:57, skipping insertion in model container [2018-12-31 02:22:57,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:22:56" (1/1) ... [2018-12-31 02:22:57,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:22:57,045 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:22:57,313 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:22:57,319 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:22:57,340 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:22:57,360 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:22:57,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:22:57 WrapperNode [2018-12-31 02:22:57,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:22:57,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:22:57,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:22:57,364 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:22:57,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:22:57" (1/1) ... [2018-12-31 02:22:57,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:22:57" (1/1) ... [2018-12-31 02:22:57,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:22:57,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:22:57,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:22:57,413 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:22:57,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:22:57" (1/1) ... [2018-12-31 02:22:57,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:22:57" (1/1) ... [2018-12-31 02:22:57,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:22:57" (1/1) ... [2018-12-31 02:22:57,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:22:57" (1/1) ... [2018-12-31 02:22:57,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:22:57" (1/1) ... [2018-12-31 02:22:57,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:22:57" (1/1) ... [2018-12-31 02:22:57,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:22:57" (1/1) ... [2018-12-31 02:22:57,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:22:57,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:22:57,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:22:57,445 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:22:57,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:22:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-12-31 02:22:57,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:22:57,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:22:57,806 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:22:57,806 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 02:22:57,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:22:57 BoogieIcfgContainer [2018-12-31 02:22:57,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:22:57,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:22:57,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:22:57,814 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:22:57,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:22:56" (1/3) ... [2018-12-31 02:22:57,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243bbbac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:22:57, skipping insertion in model container [2018-12-31 02:22:57,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:22:57" (2/3) ... [2018-12-31 02:22:57,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243bbbac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:22:57, skipping insertion in model container [2018-12-31 02:22:57,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:22:57" (3/3) ... [2018-12-31 02:22:57,819 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3_false-unreach-call_true-termination.i [2018-12-31 02:22:57,830 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:22:57,839 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:22:57,858 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:22:57,896 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:22:57,897 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:22:57,897 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:22:57,897 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:22:57,897 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:22:57,897 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:22:57,897 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:22:57,898 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:22:57,899 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:22:57,923 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-31 02:22:57,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:22:57,931 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:22:57,932 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:22:57,936 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:22:57,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:22:57,942 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:22:57,944 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 02:22:57,945 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 02:22:58,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:22:58,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:22:58,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:22:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:22:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:22:58,065 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:22:58,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:22:58 BoogieIcfgContainer [2018-12-31 02:22:58,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:22:58,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:22:58,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:22:58,085 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:22:58,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:22:57" (3/4) ... [2018-12-31 02:22:58,089 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 02:22:58,090 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:22:58,091 INFO L168 Benchmark]: Toolchain (without parser) took 1091.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -152.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:22:58,093 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:22:58,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.40 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:22:58,096 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.11 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:22:58,097 INFO L168 Benchmark]: Boogie Preprocessor took 31.33 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:22:58,098 INFO L168 Benchmark]: RCFGBuilder took 363.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-31 02:22:58,100 INFO L168 Benchmark]: TraceAbstraction took 274.82 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-31 02:22:58,101 INFO L168 Benchmark]: Witness Printer took 4.94 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. [2018-12-31 02:22:58,107 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 360.40 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 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 49.11 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.33 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 363.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 274.82 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.94 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; [L14] COND TRUE !(result >= 0.0f && result < 1.39843f) [L15] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 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=8occurred 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, 3 NumberOfCodeBlocks, 3 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 0.1.24-2e94e6a [2018-12-31 02:23:00,620 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:23:00,623 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:23:00,637 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:23:00,637 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:23:00,639 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:23:00,640 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:23:00,642 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:23:00,644 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:23:00,646 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:23:00,647 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:23:00,647 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:23:00,648 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:23:00,649 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:23:00,651 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:23:00,652 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:23:00,652 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:23:00,654 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:23:00,657 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:23:00,658 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:23:00,660 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:23:00,661 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:23:00,663 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:23:00,664 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:23:00,664 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:23:00,665 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:23:00,667 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:23:00,668 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:23:00,668 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:23:00,669 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:23:00,670 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:23:00,671 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:23:00,671 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:23:00,672 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:23:00,673 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:23:00,673 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:23:00,674 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:23:00,691 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:23:00,691 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:23:00,699 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:23:00,699 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:23:00,699 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:23:00,700 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:23:00,700 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:23:00,700 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:23:00,700 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:23:00,700 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:23:00,701 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:23:00,701 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:23:00,701 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:23:00,701 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:23:00,701 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:23:00,701 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:23:00,704 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:23:00,704 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:23:00,704 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:23:00,705 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:23:00,705 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:23:00,705 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:23:00,705 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:23:00,705 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:23:00,706 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:23:00,706 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:23:00,706 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:23:00,706 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:23:00,706 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:23:00,706 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:23:00,709 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 [2018-12-31 02:23:00,780 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:23:00,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:23:00,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:23:00,808 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:23:00,809 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:23:00,810 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i [2018-12-31 02:23:00,872 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f269ce405/0c837a6412a4429ab80a8cb0375bc0e1/FLAGd1c9b6da7 [2018-12-31 02:23:01,331 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:23:01,332 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/square_3_false-unreach-call_true-termination.i [2018-12-31 02:23:01,339 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f269ce405/0c837a6412a4429ab80a8cb0375bc0e1/FLAGd1c9b6da7 [2018-12-31 02:23:01,695 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f269ce405/0c837a6412a4429ab80a8cb0375bc0e1 [2018-12-31 02:23:01,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:23:01,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:23:01,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:23:01,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:23:01,708 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:23:01,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:23:01" (1/1) ... [2018-12-31 02:23:01,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2a7169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:23:01, skipping insertion in model container [2018-12-31 02:23:01,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:23:01" (1/1) ... [2018-12-31 02:23:01,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:23:01,744 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:23:02,008 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:23:02,021 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:23:02,048 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:23:02,068 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:23:02,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:23:02 WrapperNode [2018-12-31 02:23:02,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:23:02,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:23:02,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:23:02,071 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:23:02,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:23:02" (1/1) ... [2018-12-31 02:23:02,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:23:02" (1/1) ... [2018-12-31 02:23:02,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:23:02,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:23:02,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:23:02,118 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:23:02,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:23:02" (1/1) ... [2018-12-31 02:23:02,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:23:02" (1/1) ... [2018-12-31 02:23:02,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:23:02" (1/1) ... [2018-12-31 02:23:02,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:23:02" (1/1) ... [2018-12-31 02:23:02,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:23:02" (1/1) ... [2018-12-31 02:23:02,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:23:02" (1/1) ... [2018-12-31 02:23:02,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:23:02" (1/1) ... [2018-12-31 02:23:02,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:23:02,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:23:02,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:23:02,147 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:23:02,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:23:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-12-31 02:23:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:23:02,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:23:04,531 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:23:04,531 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 02:23:04,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:23:04 BoogieIcfgContainer [2018-12-31 02:23:04,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:23:04,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:23:04,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:23:04,537 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:23:04,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:23:01" (1/3) ... [2018-12-31 02:23:04,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a12412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:23:04, skipping insertion in model container [2018-12-31 02:23:04,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:23:02" (2/3) ... [2018-12-31 02:23:04,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a12412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:23:04, skipping insertion in model container [2018-12-31 02:23:04,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:23:04" (3/3) ... [2018-12-31 02:23:04,542 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3_false-unreach-call_true-termination.i [2018-12-31 02:23:04,552 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:23:04,560 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:23:04,577 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:23:04,612 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:23:04,613 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:23:04,614 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:23:04,614 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:23:04,614 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:23:04,614 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:23:04,615 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:23:04,615 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:23:04,615 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:23:04,632 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-31 02:23:04,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:23:04,638 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:23:04,639 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:23:04,642 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:23:04,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:23:04,649 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:23:04,654 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:23:04,655 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-12-31 02:23:04,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 02:23:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:24:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:24:30,670 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:24:30,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:24:30 BoogieIcfgContainer [2018-12-31 02:24:30,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:24:30,715 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:24:30,715 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:24:30,717 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:24:30,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:23:04" (3/4) ... [2018-12-31 02:24:30,721 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 02:24:30,759 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:24:30,760 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:24:30,760 INFO L168 Benchmark]: Toolchain (without parser) took 89060.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:24:30,762 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:24:30,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.95 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:24:30,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.02 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:24:30,765 INFO L168 Benchmark]: Boogie Preprocessor took 28.58 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:24:30,766 INFO L168 Benchmark]: RCFGBuilder took 2385.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -177.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:24:30,767 INFO L168 Benchmark]: TraceAbstraction took 86181.48 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-31 02:24:30,768 INFO L168 Benchmark]: Witness Printer took 44.72 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. [2018-12-31 02:24:30,772 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 366.95 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 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 47.02 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.58 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2385.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -177.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 86181.48 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * Witness Printer took 44.72 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; [L14] COND TRUE !(result >= 0.0f && result < 1.39843f) [L15] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. UNSAFE Result, 86.1s 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=8occurred 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, 34.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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...