./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/inv_square_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f 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/float-benchs/inv_square_false-unreach-call_true-termination.c -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 5cdc4d12f446be57385f35c672efbdd6980b00fa ...................................................................................................................................................................................................................... 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/float-benchs/inv_square_false-unreach-call_true-termination.c -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 5cdc4d12f446be57385f35c672efbdd6980b00fa ........................................................................................................................................................................................................................ 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 0.1.24-0ed9222-m [2019-01-12 07:57:31,195 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:57:31,196 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:57:31,208 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:57:31,209 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:57:31,210 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:57:31,211 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:57:31,213 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:57:31,215 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:57:31,216 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:57:31,217 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:57:31,217 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:57:31,218 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:57:31,219 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:57:31,220 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:57:31,221 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:57:31,222 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:57:31,224 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:57:31,228 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:57:31,232 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:57:31,233 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:57:31,235 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:57:31,240 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:57:31,244 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:57:31,244 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:57:31,245 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:57:31,249 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:57:31,250 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:57:31,251 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:57:31,254 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:57:31,254 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:57:31,255 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:57:31,255 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:57:31,255 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:57:31,259 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:57:31,260 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:57:31,262 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 07:57:31,286 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:57:31,288 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:57:31,291 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:57:31,291 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:57:31,291 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:57:31,292 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:57:31,292 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:57:31,292 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 07:57:31,292 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:57:31,292 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:57:31,293 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:57:31,294 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:57:31,294 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:57:31,295 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:57:31,295 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:57:31,295 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:57:31,295 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:57:31,296 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:57:31,296 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:57:31,296 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:57:31,296 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:57:31,297 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:57:31,297 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:57:31,297 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:57:31,297 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:57:31,297 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 07:57:31,297 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:57:31,301 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 07:57:31,301 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 -> 5cdc4d12f446be57385f35c672efbdd6980b00fa [2019-01-12 07:57:31,353 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:57:31,373 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:57:31,377 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:57:31,379 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:57:31,379 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:57:31,380 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2019-01-12 07:57:31,433 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d576323fd/8dfd00dbffbc4984a369eb27f487f254/FLAG277cdbb68 [2019-01-12 07:57:31,851 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:57:31,852 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2019-01-12 07:57:31,859 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d576323fd/8dfd00dbffbc4984a369eb27f487f254/FLAG277cdbb68 [2019-01-12 07:57:32,232 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d576323fd/8dfd00dbffbc4984a369eb27f487f254 [2019-01-12 07:57:32,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:57:32,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:57:32,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:57:32,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:57:32,241 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:57:32,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:57:32" (1/1) ... [2019-01-12 07:57:32,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a0c3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:32, skipping insertion in model container [2019-01-12 07:57:32,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:57:32" (1/1) ... [2019-01-12 07:57:32,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:57:32,273 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:57:32,475 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:57:32,481 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:57:32,495 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:57:32,508 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:57:32,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:32 WrapperNode [2019-01-12 07:57:32,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:57:32,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:57:32,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:57:32,510 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:57:32,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:32" (1/1) ... [2019-01-12 07:57:32,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:32" (1/1) ... [2019-01-12 07:57:32,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:57:32,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:57:32,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:57:32,539 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:57:32,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:32" (1/1) ... [2019-01-12 07:57:32,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:32" (1/1) ... [2019-01-12 07:57:32,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:32" (1/1) ... [2019-01-12 07:57:32,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:32" (1/1) ... [2019-01-12 07:57:32,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:32" (1/1) ... [2019-01-12 07:57:32,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:32" (1/1) ... [2019-01-12 07:57:32,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:32" (1/1) ... [2019-01-12 07:57:32,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:57:32,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:57:32,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:57:32,557 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:57:32,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:32" (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 [2019-01-12 07:57:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:57:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:57:32,874 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:57:32,874 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-12 07:57:32,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:57:32 BoogieIcfgContainer [2019-01-12 07:57:32,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:57:32,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:57:32,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:57:32,880 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:57:32,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:57:32" (1/3) ... [2019-01-12 07:57:32,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ae2cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:57:32, skipping insertion in model container [2019-01-12 07:57:32,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:32" (2/3) ... [2019-01-12 07:57:32,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ae2cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:57:32, skipping insertion in model container [2019-01-12 07:57:32,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:57:32" (3/3) ... [2019-01-12 07:57:32,884 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_false-unreach-call_true-termination.c [2019-01-12 07:57:32,893 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:57:32,900 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 07:57:32,914 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 07:57:32,943 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:57:32,944 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:57:32,944 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:57:32,944 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:57:32,944 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:57:32,944 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:57:32,945 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:57:32,945 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:57:32,945 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:57:32,957 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-01-12 07:57:32,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-12 07:57:32,963 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:57:32,964 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-12 07:57:32,966 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:57:32,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:57:32,972 INFO L82 PathProgramCache]: Analyzing trace with hash 957382, now seen corresponding path program 1 times [2019-01-12 07:57:32,974 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 07:57:32,974 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 07:57:33,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:57:33,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:57:33,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:57:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:57:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:57:33,085 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 07:57:33,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:57:33 BoogieIcfgContainer [2019-01-12 07:57:33,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:57:33,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:57:33,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:57:33,102 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:57:33,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:57:32" (3/4) ... [2019-01-12 07:57:33,106 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-12 07:57:33,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:57:33,107 INFO L168 Benchmark]: Toolchain (without parser) took 871.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:57:33,109 INFO L168 Benchmark]: CDTParser took 0.16 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. [2019-01-12 07:57:33,109 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:33,110 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.07 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:57:33,111 INFO L168 Benchmark]: Boogie Preprocessor took 17.45 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:57:33,111 INFO L168 Benchmark]: RCFGBuilder took 319.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:33,113 INFO L168 Benchmark]: TraceAbstraction took 224.26 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:33,114 INFO L168 Benchmark]: Witness Printer took 4.26 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. [2019-01-12 07:57:33,118 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 272.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 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 29.07 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.45 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 319.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 224.26 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.26 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: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryArithmeticFLOAToperation at line 18. Possible FailurePath: [L12] float x, y, z; [L14] x = __VERIFIER_nondet_float() [L17] COND TRUE x != 0.f [L18] y = x * x [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 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=10occurred 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, 4 NumberOfCodeBlocks, 4 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 0.1.24-0ed9222-m [2019-01-12 07:57:35,376 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:57:35,378 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:57:35,391 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:57:35,391 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:57:35,392 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:57:35,394 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:57:35,396 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:57:35,398 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:57:35,399 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:57:35,400 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:57:35,400 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:57:35,401 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:57:35,402 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:57:35,404 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:57:35,405 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:57:35,406 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:57:35,408 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:57:35,411 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:57:35,412 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:57:35,414 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:57:35,415 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:57:35,421 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:57:35,421 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:57:35,422 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:57:35,424 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:57:35,429 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:57:35,430 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:57:35,431 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:57:35,432 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:57:35,433 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:57:35,433 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:57:35,433 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:57:35,434 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:57:35,438 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:57:35,439 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:57:35,440 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-12 07:57:35,481 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:57:35,482 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:57:35,484 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:57:35,487 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:57:35,487 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:57:35,488 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:57:35,488 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:57:35,489 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:57:35,489 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:57:35,490 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:57:35,490 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:57:35,490 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:57:35,490 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-12 07:57:35,490 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-12 07:57:35,491 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:57:35,491 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:57:35,492 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:57:35,492 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:57:35,492 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:57:35,492 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:57:35,492 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:57:35,493 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:57:35,495 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:57:35,495 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:57:35,495 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:57:35,496 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:57:35,496 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-12 07:57:35,496 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:57:35,497 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-12 07:57:35,497 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-12 07:57:35,497 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 -> 5cdc4d12f446be57385f35c672efbdd6980b00fa [2019-01-12 07:57:35,537 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:57:35,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:57:35,557 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:57:35,559 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:57:35,560 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:57:35,561 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2019-01-12 07:57:35,633 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ab4e422/8ebe37380a7947989232126795bcdef4/FLAG0080f3f51 [2019-01-12 07:57:36,135 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:57:36,138 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2019-01-12 07:57:36,146 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ab4e422/8ebe37380a7947989232126795bcdef4/FLAG0080f3f51 [2019-01-12 07:57:36,479 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ab4e422/8ebe37380a7947989232126795bcdef4 [2019-01-12 07:57:36,483 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:57:36,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:57:36,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:57:36,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:57:36,489 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:57:36,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:57:36" (1/1) ... [2019-01-12 07:57:36,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b661070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:36, skipping insertion in model container [2019-01-12 07:57:36,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:57:36" (1/1) ... [2019-01-12 07:57:36,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:57:36,521 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:57:36,756 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:57:36,768 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:57:36,791 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:57:36,821 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:57:36,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:36 WrapperNode [2019-01-12 07:57:36,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:57:36,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:57:36,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:57:36,825 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:57:36,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:36" (1/1) ... [2019-01-12 07:57:36,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:36" (1/1) ... [2019-01-12 07:57:36,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:57:36,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:57:36,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:57:36,879 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:57:36,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:36" (1/1) ... [2019-01-12 07:57:36,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:36" (1/1) ... [2019-01-12 07:57:36,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:36" (1/1) ... [2019-01-12 07:57:36,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:36" (1/1) ... [2019-01-12 07:57:36,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:36" (1/1) ... [2019-01-12 07:57:36,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:36" (1/1) ... [2019-01-12 07:57:36,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:36" (1/1) ... [2019-01-12 07:57:36,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:57:36,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:57:36,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:57:36,916 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:57:36,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:36" (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 [2019-01-12 07:57:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:57:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:57:38,540 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:57:38,540 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-12 07:57:38,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:57:38 BoogieIcfgContainer [2019-01-12 07:57:38,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:57:38,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:57:38,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:57:38,549 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:57:38,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:57:36" (1/3) ... [2019-01-12 07:57:38,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12bcc0ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:57:38, skipping insertion in model container [2019-01-12 07:57:38,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:57:36" (2/3) ... [2019-01-12 07:57:38,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12bcc0ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:57:38, skipping insertion in model container [2019-01-12 07:57:38,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:57:38" (3/3) ... [2019-01-12 07:57:38,554 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_false-unreach-call_true-termination.c [2019-01-12 07:57:38,564 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:57:38,572 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 07:57:38,591 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 07:57:38,623 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:57:38,624 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:57:38,625 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:57:38,625 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:57:38,625 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:57:38,626 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:57:38,626 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:57:38,626 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:57:38,626 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:57:38,641 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-01-12 07:57:38,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-12 07:57:38,648 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:57:38,649 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-12 07:57:38,651 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:57:38,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:57:38,658 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2019-01-12 07:57:38,662 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:57:38,663 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) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-01-12 07:57:38,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:57:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:57:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:57:38,901 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 07:57:38,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:57:38 BoogieIcfgContainer [2019-01-12 07:57:38,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:57:38,928 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:57:38,929 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:57:38,929 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:57:38,930 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:57:38" (3/4) ... [2019-01-12 07:57:38,933 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-12 07:57:38,980 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 07:57:38,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:57:38,981 INFO L168 Benchmark]: Toolchain (without parser) took 2497.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -98.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:57:38,983 INFO L168 Benchmark]: CDTParser took 0.51 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. [2019-01-12 07:57:38,984 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.59 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:38,985 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.64 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:57:38,986 INFO L168 Benchmark]: Boogie Preprocessor took 36.45 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:38,987 INFO L168 Benchmark]: RCFGBuilder took 1629.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -128.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:38,988 INFO L168 Benchmark]: TraceAbstraction took 381.94 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-01-12 07:57:38,989 INFO L168 Benchmark]: Witness Printer took 51.49 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. [2019-01-12 07:57:38,994 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 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 337.59 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.64 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.45 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1629.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -128.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 381.94 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Witness Printer took 51.49 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: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] float x, y, z; [L14] x = __VERIFIER_nondet_float() [L17] COND TRUE x != 0.f [L18] y = x * x [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. UNSAFE Result, 0.3s 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=11occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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...