/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-benchs/loop_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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 ../../../trunk/examples/svcomp/float-benchs/loop_true-unreach-call.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 5d57b69a18e01217b153b00cc1c03d5a7a42828b ........................................................................................................................................................................................................................................................... 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 ../../../trunk/examples/svcomp/float-benchs/loop_true-unreach-call.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 5d57b69a18e01217b153b00cc1c03d5a7a42828b ............................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (fp.leq (_ FloatingPoint 11 53) (_ FloatingPoint 11 53) Bool) --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 14:09:53,372 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:09:53,375 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:09:53,394 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:09:53,395 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:09:53,396 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:09:53,399 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:09:53,401 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:09:53,404 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:09:53,407 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:09:53,413 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:09:53,413 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:09:53,414 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:09:53,415 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:09:53,417 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:09:53,418 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:09:53,418 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:09:53,420 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:09:53,422 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:09:53,424 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:09:53,425 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:09:53,426 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:09:53,428 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:09:53,429 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:09:53,429 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:09:53,430 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:09:53,431 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:09:53,432 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:09:53,433 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:09:53,434 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:09:53,434 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:09:53,435 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:09:53,435 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:09:53,435 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:09:53,436 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:09:53,437 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:09:53,437 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 14:09:53,453 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:09:53,453 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:09:53,454 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:09:53,454 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:09:53,455 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:09:53,455 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:09:53,455 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:09:53,456 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:09:53,456 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:09:53,456 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 14:09:53,456 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:09:53,456 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:09:53,456 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:09:53,457 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:09:53,457 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:09:53,457 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:09:53,457 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:09:53,457 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:09:53,457 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:09:53,458 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:09:53,458 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:09:53,458 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:09:53,458 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:09:53,458 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:09:53,458 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:09:53,459 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:09:53,459 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 14:09:53,459 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:09:53,459 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 14:09:53,459 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 -> 5d57b69a18e01217b153b00cc1c03d5a7a42828b [2018-09-20 14:09:53,508 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:09:53,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:09:53,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:09:53,530 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:09:53,531 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:09:53,532 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/loop_true-unreach-call.c [2018-09-20 14:09:53,898 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d58382377/3f876ce5c90841e7ae5d6a8ac5a7e770/FLAG44b3e4adb [2018-09-20 14:09:54,072 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:09:54,073 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/loop_true-unreach-call.c [2018-09-20 14:09:54,082 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d58382377/3f876ce5c90841e7ae5d6a8ac5a7e770/FLAG44b3e4adb [2018-09-20 14:09:54,110 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d58382377/3f876ce5c90841e7ae5d6a8ac5a7e770 [2018-09-20 14:09:54,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:09:54,120 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:09:54,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:09:54,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:09:54,129 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:09:54,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:09:54" (1/1) ... [2018-09-20 14:09:54,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb35efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:54, skipping insertion in model container [2018-09-20 14:09:54,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:09:54" (1/1) ... [2018-09-20 14:09:54,149 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:09:54,384 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:09:54,408 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:09:54,415 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:09:54,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:54 WrapperNode [2018-09-20 14:09:54,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:09:54,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:09:54,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:09:54,436 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:09:54,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:54" (1/1) ... [2018-09-20 14:09:54,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:54" (1/1) ... [2018-09-20 14:09:54,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:54" (1/1) ... [2018-09-20 14:09:54,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:54" (1/1) ... [2018-09-20 14:09:54,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:54" (1/1) ... [2018-09-20 14:09:54,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:54" (1/1) ... [2018-09-20 14:09:54,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:54" (1/1) ... [2018-09-20 14:09:54,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:09:54,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:09:54,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:09:54,474 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:09:54,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:54" (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 [2018-09-20 14:09:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:09:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:09:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 14:09:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:09:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:09:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 14:09:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:09:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:09:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:09:54,896 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:09:54,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:09:54 BoogieIcfgContainer [2018-09-20 14:09:54,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:09:54,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:09:54,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:09:54,903 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:09:54,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:09:54" (1/3) ... [2018-09-20 14:09:54,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f427a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:09:54, skipping insertion in model container [2018-09-20 14:09:54,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:54" (2/3) ... [2018-09-20 14:09:54,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f427a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:09:54, skipping insertion in model container [2018-09-20 14:09:54,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:09:54" (3/3) ... [2018-09-20 14:09:54,908 INFO L112 eAbstractionObserver]: Analyzing ICFG loop_true-unreach-call.c [2018-09-20 14:09:54,916 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:09:54,924 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:09:54,967 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:09:54,968 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:09:54,968 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:09:54,968 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:09:54,968 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:09:54,968 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:09:54,968 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:09:54,969 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:09:54,969 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:09:54,989 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-09-20 14:09:54,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-20 14:09:54,995 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:09:54,996 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:09:54,999 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:09:55,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2018-09-20 14:09:55,007 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 14:09:55,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 14:09:55,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:09:55,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:09:55,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:09:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:09:55,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:09:55,131 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:09:55,131 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 14:09:55,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 14:09:55,152 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 14:09:55,153 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 14:09:55,156 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2018-09-20 14:09:55,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:09:55,179 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-09-20 14:09:55,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 14:09:55,181 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-09-20 14:09:55,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:09:55,191 INFO L225 Difference]: With dead ends: 31 [2018-09-20 14:09:55,191 INFO L226 Difference]: Without dead ends: 12 [2018-09-20 14:09:55,195 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 14:09:55,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-09-20 14:09:55,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-09-20 14:09:55,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-09-20 14:09:55,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-09-20 14:09:55,236 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-09-20 14:09:55,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:09:55,237 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-09-20 14:09:55,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 14:09:55,237 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-09-20 14:09:55,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-20 14:09:55,238 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:09:55,238 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:09:55,238 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:09:55,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1861991801, now seen corresponding path program 1 times [2018-09-20 14:09:55,239 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 14:09:55,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 14:09:55,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:09:55,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:09:55,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:09:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:09:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:09:55,280 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 14:09:55,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 02:09:55 BoogieIcfgContainer [2018-09-20 14:09:55,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 14:09:55,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 14:09:55,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 14:09:55,308 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 14:09:55,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:09:54" (3/4) ... [2018-09-20 14:09:55,319 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 14:09:55,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 14:09:55,321 INFO L168 Benchmark]: Toolchain (without parser) took 1204.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -128.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:09:55,326 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:09:55,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.70 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:09:55,328 INFO L168 Benchmark]: Boogie Preprocessor took 37.26 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:09:55,328 INFO L168 Benchmark]: RCFGBuilder took 424.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-09-20 14:09:55,330 INFO L168 Benchmark]: TraceAbstraction took 408.43 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: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-09-20 14:09:55,331 INFO L168 Benchmark]: Witness Printer took 12.09 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. [2018-09-20 14:09:55,339 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 313.70 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.26 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 424.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 408.43 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: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Witness Printer took 12.09 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: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12. Possible FailurePath: [L6] float x, y, z; [L8] x = 1.f [L9] y = 1e7 [L10] z = 42.f VAL [x=1, y=10000000, z=42] [L12] COND FALSE !(x < y) VAL [x=1, y=10000000, z=42] [L18] CALL __VERIFIER_assert(z >= 0.f && z <= 1e8) VAL [\old(cond)=0] [L2] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L2] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 14:09:57,761 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:09:57,763 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:09:57,776 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:09:57,776 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:09:57,777 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:09:57,779 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:09:57,780 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:09:57,782 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:09:57,783 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:09:57,784 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:09:57,785 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:09:57,786 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:09:57,787 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:09:57,788 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:09:57,789 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:09:57,789 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:09:57,791 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:09:57,793 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:09:57,795 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:09:57,797 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:09:57,798 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:09:57,801 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:09:57,801 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:09:57,801 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:09:57,802 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:09:57,804 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:09:57,805 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:09:57,806 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:09:57,807 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:09:57,807 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:09:57,808 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:09:57,808 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:09:57,809 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:09:57,810 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:09:57,811 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:09:57,811 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 14:09:57,827 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:09:57,827 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:09:57,828 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:09:57,828 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:09:57,829 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:09:57,829 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:09:57,830 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:09:57,830 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:09:57,830 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:09:57,830 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:09:57,830 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:09:57,831 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:09:57,831 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:09:57,831 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:09:57,831 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 14:09:57,831 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 14:09:57,832 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:09:57,832 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:09:57,832 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:09:57,832 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:09:57,832 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:09:57,833 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:09:57,833 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:09:57,833 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:09:57,833 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:09:57,833 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:09:57,833 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:09:57,834 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 14:09:57,834 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:09:57,834 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 14:09:57,834 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 14:09:57,834 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 -> 5d57b69a18e01217b153b00cc1c03d5a7a42828b [2018-09-20 14:09:57,882 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:09:57,898 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:09:57,902 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:09:57,904 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:09:57,905 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:09:57,905 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/loop_true-unreach-call.c [2018-09-20 14:09:58,274 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/426ce27e0/e440ac13f0104b0ab145a01675cd1500/FLAG707a962e8 [2018-09-20 14:09:58,455 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:09:58,456 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/loop_true-unreach-call.c [2018-09-20 14:09:58,463 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/426ce27e0/e440ac13f0104b0ab145a01675cd1500/FLAG707a962e8 [2018-09-20 14:09:58,491 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/426ce27e0/e440ac13f0104b0ab145a01675cd1500 [2018-09-20 14:09:58,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:09:58,504 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:09:58,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:09:58,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:09:58,518 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:09:58,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:09:58" (1/1) ... [2018-09-20 14:09:58,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@459a65a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:58, skipping insertion in model container [2018-09-20 14:09:58,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:09:58" (1/1) ... [2018-09-20 14:09:58,539 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:09:58,821 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:09:58,846 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:09:58,852 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:09:58,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:58 WrapperNode [2018-09-20 14:09:58,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:09:58,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:09:58,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:09:58,870 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:09:58,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:58" (1/1) ... [2018-09-20 14:09:58,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:58" (1/1) ... [2018-09-20 14:09:58,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:58" (1/1) ... [2018-09-20 14:09:58,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:58" (1/1) ... [2018-09-20 14:09:58,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:58" (1/1) ... [2018-09-20 14:09:58,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:58" (1/1) ... [2018-09-20 14:09:58,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:58" (1/1) ... [2018-09-20 14:09:58,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:09:58,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:09:58,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:09:58,925 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:09:58,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:58" (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 [2018-09-20 14:09:58,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:09:58,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:09:58,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 14:09:58,999 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:09:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:09:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 14:09:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:09:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:09:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:09:59,916 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:09:59,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:09:59 BoogieIcfgContainer [2018-09-20 14:09:59,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:09:59,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:09:59,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:09:59,923 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:09:59,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:09:58" (1/3) ... [2018-09-20 14:09:59,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bbb461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:09:59, skipping insertion in model container [2018-09-20 14:09:59,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:09:58" (2/3) ... [2018-09-20 14:09:59,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bbb461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:09:59, skipping insertion in model container [2018-09-20 14:09:59,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:09:59" (3/3) ... [2018-09-20 14:09:59,929 INFO L112 eAbstractionObserver]: Analyzing ICFG loop_true-unreach-call.c [2018-09-20 14:09:59,941 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:09:59,952 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:10:00,033 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:10:00,034 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:10:00,034 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:10:00,035 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:10:00,035 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:10:00,035 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:10:00,042 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:10:00,042 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:10:00,042 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:10:00,067 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-09-20 14:10:00,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-20 14:10:00,076 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:10:00,077 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:10:00,082 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:10:00,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2018-09-20 14:10:00,096 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:10:00,097 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 [2018-09-20 14:10:00,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:10:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:10:00,163 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:10:00,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:10:00,182 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:10:00,195 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:10:00,197 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 14:10:00,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 14:10:00,223 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 14:10:00,224 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 14:10:00,227 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2018-09-20 14:10:00,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:10:00,253 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-09-20 14:10:00,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 14:10:00,255 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-09-20 14:10:00,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:10:00,265 INFO L225 Difference]: With dead ends: 31 [2018-09-20 14:10:00,266 INFO L226 Difference]: Without dead ends: 12 [2018-09-20 14:10:00,270 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 14:10:00,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-09-20 14:10:00,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-09-20 14:10:00,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-09-20 14:10:00,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-09-20 14:10:00,311 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-09-20 14:10:00,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:10:00,311 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-09-20 14:10:00,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 14:10:00,312 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-09-20 14:10:00,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-20 14:10:00,313 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:10:00,313 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:10:00,313 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:10:00,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1861991801, now seen corresponding path program 1 times [2018-09-20 14:10:00,314 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:10:00,314 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 14:10:00,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:10:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:10:00,367 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:10:00,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:10:00,456 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:10:00,467 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:10:00,467 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-20 14:10:00,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-20 14:10:00,469 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-20 14:10:00,469 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 14:10:00,470 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2018-09-20 14:10:00,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:10:00,792 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-09-20 14:10:00,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-20 14:10:00,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-20 14:10:00,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:10:00,796 INFO L225 Difference]: With dead ends: 19 [2018-09-20 14:10:00,796 INFO L226 Difference]: Without dead ends: 14 [2018-09-20 14:10:00,798 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 14:10:00,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-09-20 14:10:00,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-09-20 14:10:00,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-20 14:10:00,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-09-20 14:10:00,804 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-09-20 14:10:00,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:10:00,804 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-09-20 14:10:00,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-20 14:10:00,805 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-09-20 14:10:00,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-20 14:10:00,805 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:10:00,805 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:10:00,806 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:10:00,806 INFO L82 PathProgramCache]: Analyzing trace with hash -661808769, now seen corresponding path program 1 times [2018-09-20 14:10:00,808 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:10:00,808 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 14:10:00,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:10:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:10:00,932 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:10:01,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:10:01,020 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-20 14:10:05,304 WARN L178 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 14:10:05,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:10:05,339 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-20 14:10:05,339 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-09-20 14:10:05,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-20 14:10:05,340 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-20 14:10:05,342 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2018-09-20 14:10:05,343 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 6 states. [2018-09-20 14:10:15,426 WARN L178 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 10 [2018-09-20 14:10:18,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:10:18,263 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2018-09-20 14:10:18,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-20 14:10:18,264 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-09-20 14:10:18,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:10:18,265 INFO L225 Difference]: With dead ends: 25 [2018-09-20 14:10:18,266 INFO L226 Difference]: Without dead ends: 20 [2018-09-20 14:10:18,266 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=19, Invalid=21, Unknown=2, NotChecked=0, Total=42 [2018-09-20 14:10:18,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-09-20 14:10:18,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-09-20 14:10:18,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-09-20 14:10:18,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-09-20 14:10:18,273 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 13 [2018-09-20 14:10:18,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:10:18,274 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-09-20 14:10:18,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-20 14:10:18,274 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-09-20 14:10:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-20 14:10:18,276 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:10:18,276 INFO L376 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:10:18,276 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:10:18,276 INFO L82 PathProgramCache]: Analyzing trace with hash -875350895, now seen corresponding path program 2 times [2018-09-20 14:10:18,277 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:10:18,277 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 14:10:18,284 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-09-20 14:10:18,594 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-20 14:10:18,594 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-20 14:10:18,630 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:10:19,108 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 5 [2018-09-20 14:10:19,308 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:10:19,309 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-20 14:10:21,934 WARN L178 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-09-20 14:10:31,900 WARN L178 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 12 [2018-09-20 14:10:56,972 WARN L178 SmtUtils]: Spent 6.04 s on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 14:11:47,324 WARN L178 SmtUtils]: Spent 10.83 s on a formula simplification that was a NOOP. DAG size: 14 [2018-09-20 14:11:49,369 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) RNE 1.0))) (fp.add RNE (fp.add RNE (fp.add RNE (fp.add RNE c_main_~z~0 .cse1) .cse1) .cse1) .cse1)))) (and (fp.leq ((_ to_fp 11 53) RNE .cse0) ((_ to_fp 11 53) RNE 100000000.0)) (fp.geq .cse0 (_ +zero 8 24)))) is different from false [2018-09-20 14:11:51,398 WARN L819 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) RNE 1.0))) (fp.add RNE (fp.add RNE (fp.add RNE (fp.add RNE c_main_~z~0 .cse1) .cse1) .cse1) .cse1)))) (and (fp.leq ((_ to_fp 11 53) RNE .cse0) ((_ to_fp 11 53) RNE 100000000.0)) (fp.geq .cse0 (_ +zero 8 24)))) is different from true [2018-09-20 14:11:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 12 times theorem prover too weak. 0 trivial. 8 not checked. [2018-09-20 14:11:51,437 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-20 14:11:51,437 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-09-20 14:11:51,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-20 14:11:51,439 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-20 14:11:51,439 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=143, Unknown=20, NotChecked=26, Total=240 [2018-09-20 14:11:51,440 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 16 states. [2018-09-20 14:11:55,415 WARN L819 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) RNE 1.0))) (fp.add RNE (fp.add RNE (fp.add RNE (fp.add RNE c_main_~z~0 .cse1) .cse1) .cse1) .cse1)))) (and (fp.leq ((_ to_fp 11 53) RNE .cse0) ((_ to_fp 11 53) RNE 100000000.0)) (= ((_ to_fp 8 24) RNE 42.0) c_main_~z~0) (fp.geq .cse0 (_ +zero 8 24)))) is different from true [2018-09-20 14:12:46,453 WARN L178 SmtUtils]: Spent 22.76 s on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-09-20 14:13:23,332 WARN L178 SmtUtils]: Spent 8.55 s on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2018-09-20 14:13:25,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:13:25,425 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-09-20 14:13:25,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-20 14:13:25,457 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2018-09-20 14:13:25,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:13:25,457 INFO L225 Difference]: With dead ends: 24 [2018-09-20 14:13:25,458 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 14:13:25,459 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 165.2s TimeCoverageRelationStatistics Valid=79, Invalid=206, Unknown=29, NotChecked=66, Total=380 [2018-09-20 14:13:25,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 14:13:25,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 14:13:25,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 14:13:25,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 14:13:25,460 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-09-20 14:13:25,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:13:25,461 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 14:13:25,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-20 14:13:25,461 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 14:13:25,461 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 14:13:25,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 14:13:54,499 WARN L178 SmtUtils]: Spent 28.92 s on a formula simplification. DAG size of input: 23 DAG size of output: 15 [2018-09-20 14:14:31,317 WARN L178 SmtUtils]: Spent 36.82 s on a formula simplification. DAG size of input: 54 DAG size of output: 12 [2018-09-20 14:14:31,320 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-20 14:14:31,320 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 14:14:31,321 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 14:14:31,321 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 14:14:31,321 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 14:14:31,321 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 14:14:31,321 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 4 20) the Hoare annotation is: true [2018-09-20 14:14:31,321 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 4 20) no Hoare annotation was computed. [2018-09-20 14:14:31,321 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-20 14:14:31,322 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 4 20) no Hoare annotation was computed. [2018-09-20 14:14:31,322 INFO L426 ceAbstractionStarter]: For program point L12-1(lines 12 16) no Hoare annotation was computed. [2018-09-20 14:14:31,322 INFO L422 ceAbstractionStarter]: At program point L12-3(lines 12 16) the Hoare annotation is: (and (fp.leq ((_ to_fp 11 53) RNE (fp.add RNE main_~z~0 ((_ to_fp 8 24) RNE 1.0))) ((_ to_fp 11 53) RNE 100000000.0)) (fp.geq main_~z~0 (_ +zero 8 24))) [2018-09-20 14:14:31,323 INFO L422 ceAbstractionStarter]: At program point L12-4(lines 12 16) the Hoare annotation is: (let ((.cse1 ((_ to_fp 11 53) RNE 100000000.0))) (and (fp.leq ((_ to_fp 11 53) RNE (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (fp.add RNE (fp.add RNE main_~z~0 .cse0) .cse0))) .cse1) (fp.leq ((_ to_fp 11 53) RNE main_~z~0) .cse1) (fp.geq main_~z~0 (_ +zero 8 24)))) [2018-09-20 14:14:31,323 INFO L426 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2018-09-20 14:14:31,323 INFO L426 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2018-09-20 14:14:31,324 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2018-09-20 14:14:31,324 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2018-09-20 14:14:31,324 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2018-09-20 14:14:31,324 INFO L426 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2018-09-20 14:14:31,328 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (fp.leq (_ FloatingPoint 11 53) (_ FloatingPoint 11 53) Bool) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:539) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:234) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:128) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:164) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:128) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:356) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:108) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:92) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:532) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:195) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-20 14:14:31,335 INFO L168 Benchmark]: Toolchain (without parser) took 272832.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 951.8 MB in the beginning and 944.5 MB in the end (delta: 7.3 MB). Peak memory consumption was 94.8 MB. Max. memory is 11.5 GB. [2018-09-20 14:14:31,336 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:14:31,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.08 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:14:31,338 INFO L168 Benchmark]: Boogie Preprocessor took 54.76 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:14:31,338 INFO L168 Benchmark]: RCFGBuilder took 992.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -127.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-20 14:14:31,342 INFO L168 Benchmark]: TraceAbstraction took 271410.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 944.5 MB in the end (delta: 123.9 MB). Peak memory consumption was 123.9 MB. Max. memory is 11.5 GB. [2018-09-20 14:14:31,349 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 364.08 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.76 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 992.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -127.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 271410.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 944.5 MB in the end (delta: 123.9 MB). Peak memory consumption was 123.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (fp.leq (_ FloatingPoint 11 53) (_ FloatingPoint 11 53) Bool) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (fp.leq (_ FloatingPoint 11 53) (_ FloatingPoint 11 53) Bool): de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:539) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...