/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-benchs/sqrt_poly_true-unreach-call_true-termination.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/sqrt_poly_true-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 8a4836c40967b3aafd0bbb2ea7228f657b02305b .......................................................................................................................................................................................................................... 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/sqrt_poly_true-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 8a4836c40967b3aafd0bbb2ea7228f657b02305b ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 14:21:30,588 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:21:30,590 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:21:30,602 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:21:30,603 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:21:30,604 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:21:30,606 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:21:30,608 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:21:30,614 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:21:30,615 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:21:30,616 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:21:30,616 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:21:30,617 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:21:30,621 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:21:30,622 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:21:30,623 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:21:30,628 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:21:30,632 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:21:30,635 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:21:30,636 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:21:30,638 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:21:30,639 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:21:30,642 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:21:30,642 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:21:30,643 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:21:30,644 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:21:30,645 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:21:30,646 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:21:30,647 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:21:30,649 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:21:30,649 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:21:30,650 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:21:30,651 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:21:30,651 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:21:30,652 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:21:30,653 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:21:30,654 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 14:21:30,670 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:21:30,670 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:21:30,671 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:21:30,672 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:21:30,672 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:21:30,673 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:21:30,673 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:21:30,673 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:21:30,673 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:21:30,674 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 14:21:30,674 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:21:30,674 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:21:30,675 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:21:30,675 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:21:30,675 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:21:30,675 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:21:30,675 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:21:30,676 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:21:30,676 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:21:30,676 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:21:30,676 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:21:30,678 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:21:30,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:21:30,678 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:21:30,678 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:21:30,679 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:21:30,679 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 14:21:30,679 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:21:30,679 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 14:21:30,679 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 -> 8a4836c40967b3aafd0bbb2ea7228f657b02305b [2018-09-20 14:21:30,730 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:21:30,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:21:30,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:21:30,753 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:21:30,753 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:21:30,754 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_poly_true-unreach-call_true-termination.c [2018-09-20 14:21:31,107 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815af264d/6f46b2106a0946d78251e3e52ec0b199/FLAG1704ce4a2 [2018-09-20 14:21:31,280 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:21:31,281 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_poly_true-unreach-call_true-termination.c [2018-09-20 14:21:31,290 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815af264d/6f46b2106a0946d78251e3e52ec0b199/FLAG1704ce4a2 [2018-09-20 14:21:31,316 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815af264d/6f46b2106a0946d78251e3e52ec0b199 [2018-09-20 14:21:31,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:21:31,326 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:21:31,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:21:31,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:21:31,338 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:21:31,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:21:31" (1/1) ... [2018-09-20 14:21:31,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c2ca966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:31, skipping insertion in model container [2018-09-20 14:21:31,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:21:31" (1/1) ... [2018-09-20 14:21:31,357 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:21:31,567 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:21:31,593 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:21:31,602 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:21:31,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:31 WrapperNode [2018-09-20 14:21:31,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:21:31,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:21:31,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:21:31,622 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:21:31,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:31" (1/1) ... [2018-09-20 14:21:31,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:31" (1/1) ... [2018-09-20 14:21:31,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:31" (1/1) ... [2018-09-20 14:21:31,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:31" (1/1) ... [2018-09-20 14:21:31,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:31" (1/1) ... [2018-09-20 14:21:31,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:31" (1/1) ... [2018-09-20 14:21:31,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:31" (1/1) ... [2018-09-20 14:21:31,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:21:31,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:21:31,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:21:31,668 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:21:31,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:31" (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 14:21:31,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:21:31,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:21:31,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 14:21:31,737 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:21:31,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:21:31,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 14:21:31,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 14:21:31,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 14:21:31,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:21:31,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:21:31,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:21:32,153 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:21:32,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:21:32 BoogieIcfgContainer [2018-09-20 14:21:32,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:21:32,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:21:32,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:21:32,159 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:21:32,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:21:31" (1/3) ... [2018-09-20 14:21:32,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24533fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:21:32, skipping insertion in model container [2018-09-20 14:21:32,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:31" (2/3) ... [2018-09-20 14:21:32,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24533fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:21:32, skipping insertion in model container [2018-09-20 14:21:32,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:21:32" (3/3) ... [2018-09-20 14:21:32,163 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly_true-unreach-call_true-termination.c [2018-09-20 14:21:32,173 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:21:32,182 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:21:32,235 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:21:32,236 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:21:32,236 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:21:32,236 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:21:32,236 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:21:32,236 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:21:32,236 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:21:32,236 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:21:32,237 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:21:32,256 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-09-20 14:21:32,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-20 14:21:32,263 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:21:32,264 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:21:32,266 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:21:32,273 INFO L82 PathProgramCache]: Analyzing trace with hash -2111486095, now seen corresponding path program 1 times [2018-09-20 14:21:32,276 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 14:21:32,276 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 14:21:32,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:21:32,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:21:32,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:21:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:21:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:21:32,403 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 14:21:32,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 02:21:32 BoogieIcfgContainer [2018-09-20 14:21:32,427 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 14:21:32,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 14:21:32,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 14:21:32,428 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 14:21:32,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:21:32" (3/4) ... [2018-09-20 14:21:32,433 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 14:21:32,434 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 14:21:32,434 INFO L168 Benchmark]: Toolchain (without parser) took 1111.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -137.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:21:32,437 INFO L168 Benchmark]: CDTParser took 0.19 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 14:21:32,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.00 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 14:21:32,439 INFO L168 Benchmark]: Boogie Preprocessor took 44.93 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 14:21:32,439 INFO L168 Benchmark]: RCFGBuilder took 486.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:21:32,441 INFO L168 Benchmark]: TraceAbstraction took 272.40 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-09-20 14:21:32,442 INFO L168 Benchmark]: Witness Printer took 5.79 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 14:21:32,447 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 292.00 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 44.93 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 486.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 272.40 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.79 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: 11]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 22. Possible FailurePath: [L13] double sqrt2 = 1.414213538169860839843750; VAL [\old(sqrt2)=3, sqrt2=11863283/8388608] [L17] double S, I; [L19] I = __VERIFIER_nondet_double() [L22] COND TRUE I >= 2. [L22] S = sqrt2 * (1.+(I/2.- 1.)*(.5-0.125*(I/2.-1.))) VAL [I=2, sqrt2=11863283/8388608] [L25] CALL __VERIFIER_assert(S >= 1. && S <= 2.) VAL [\old(cond)=0, sqrt2=11863283/8388608] [L11] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, sqrt2=11863283/8388608] [L11] __VERIFIER_error() VAL [\old(cond)=0, cond=0, sqrt2=11863283/8388608] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. UNSAFE Result, 0.2s 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=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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 14:21:34,912 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:21:34,914 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:21:34,934 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:21:34,935 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:21:34,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:21:34,939 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:21:34,942 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:21:34,944 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:21:34,945 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:21:34,952 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:21:34,953 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:21:34,954 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:21:34,960 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:21:34,961 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:21:34,962 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:21:34,966 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:21:34,968 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:21:34,972 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:21:34,973 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:21:34,978 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:21:34,979 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:21:34,983 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:21:34,984 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:21:34,984 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:21:34,988 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:21:34,990 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:21:34,990 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:21:34,991 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:21:34,996 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:21:34,996 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:21:34,999 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:21:34,999 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:21:35,000 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:21:35,001 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:21:35,001 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:21:35,003 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 14:21:35,028 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:21:35,028 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:21:35,031 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:21:35,031 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:21:35,032 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:21:35,032 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:21:35,032 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:21:35,033 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:21:35,033 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:21:35,033 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:21:35,033 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:21:35,033 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:21:35,035 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:21:35,035 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:21:35,035 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 14:21:35,035 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 14:21:35,035 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:21:35,035 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:21:35,036 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:21:35,036 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:21:35,036 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:21:35,036 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:21:35,038 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:21:35,038 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:21:35,038 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:21:35,038 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:21:35,038 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:21:35,039 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 14:21:35,039 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:21:35,039 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 14:21:35,039 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 14:21:35,039 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 -> 8a4836c40967b3aafd0bbb2ea7228f657b02305b [2018-09-20 14:21:35,109 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:21:35,123 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:21:35,127 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:21:35,128 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:21:35,129 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:21:35,130 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_poly_true-unreach-call_true-termination.c [2018-09-20 14:21:35,471 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93cab9cab/0241a1fcc21a4937a85aff83ac86fe97/FLAG969ac8f0f [2018-09-20 14:21:35,651 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:21:35,652 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_poly_true-unreach-call_true-termination.c [2018-09-20 14:21:35,660 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93cab9cab/0241a1fcc21a4937a85aff83ac86fe97/FLAG969ac8f0f [2018-09-20 14:21:35,678 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93cab9cab/0241a1fcc21a4937a85aff83ac86fe97 [2018-09-20 14:21:35,683 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:21:35,686 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:21:35,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:21:35,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:21:35,695 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:21:35,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:21:35" (1/1) ... [2018-09-20 14:21:35,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a8c8d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:35, skipping insertion in model container [2018-09-20 14:21:35,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:21:35" (1/1) ... [2018-09-20 14:21:35,715 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:21:35,926 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:21:35,949 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:21:35,958 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:21:35,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:35 WrapperNode [2018-09-20 14:21:35,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:21:35,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:21:35,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:21:35,977 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:21:35,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:35" (1/1) ... [2018-09-20 14:21:35,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:35" (1/1) ... [2018-09-20 14:21:36,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:35" (1/1) ... [2018-09-20 14:21:36,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:35" (1/1) ... [2018-09-20 14:21:36,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:35" (1/1) ... [2018-09-20 14:21:36,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:35" (1/1) ... [2018-09-20 14:21:36,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:35" (1/1) ... [2018-09-20 14:21:36,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:21:36,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:21:36,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:21:36,019 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:21:36,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:35" (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 14:21:36,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:21:36,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:21:36,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 14:21:36,087 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:21:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:21:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 14:21:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 14:21:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 14:21:36,088 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:21:36,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:21:36,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:21:40,642 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:21:40,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:21:40 BoogieIcfgContainer [2018-09-20 14:21:40,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:21:40,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:21:40,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:21:40,661 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:21:40,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:21:35" (1/3) ... [2018-09-20 14:21:40,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7dd445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:21:40, skipping insertion in model container [2018-09-20 14:21:40,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:21:35" (2/3) ... [2018-09-20 14:21:40,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7dd445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:21:40, skipping insertion in model container [2018-09-20 14:21:40,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:21:40" (3/3) ... [2018-09-20 14:21:40,671 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly_true-unreach-call_true-termination.c [2018-09-20 14:21:40,700 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:21:40,715 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:21:40,843 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:21:40,844 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:21:40,846 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:21:40,846 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:21:40,846 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:21:40,846 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:21:40,847 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:21:40,848 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:21:40,848 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:21:40,887 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-09-20 14:21:40,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-20 14:21:40,908 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:21:40,910 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:21:40,912 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:21:40,918 INFO L82 PathProgramCache]: Analyzing trace with hash -2111486095, now seen corresponding path program 1 times [2018-09-20 14:21:40,924 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:21:40,924 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 14:21:40,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:21:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:21:46,408 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:21:48,640 WARN L797 $PredicateComparison]: unable to prove that (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 2.0)) (.cse1 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq main_~I~0 .cse0) (fp.geq main_~I~0 .cse1) (fp.leq main_~I~0 ((_ to_fp 11 53) RNE 3.0)) (= (fp.mul RNE ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) (fp.add RNE .cse1 (let ((.cse2 (fp.sub RNE (fp.div RNE main_~I~0 .cse0) .cse1))) (fp.mul RNE .cse2 (fp.sub RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 8.0)) .cse2)))))) c_main_~S~0)))) is different from false [2018-09-20 14:21:50,761 WARN L819 $PredicateComparison]: unable to prove that (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 2.0)) (.cse1 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq main_~I~0 .cse0) (fp.geq main_~I~0 .cse1) (fp.leq main_~I~0 ((_ to_fp 11 53) RNE 3.0)) (= (fp.mul RNE ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) (fp.add RNE .cse1 (let ((.cse2 (fp.sub RNE (fp.div RNE main_~I~0 .cse0) .cse1))) (fp.mul RNE .cse2 (fp.sub RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 8.0)) .cse2)))))) c_main_~S~0)))) is different from true [2018-09-20 14:22:08,040 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 2.0)) (.cse2 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq v_prenex_1 .cse1) (fp.leq v_prenex_1 ((_ to_fp 11 53) RNE 3.0)) (not (fp.leq (fp.mul RNE ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) (fp.add RNE .cse2 (let ((.cse3 (fp.sub RNE (fp.div RNE v_prenex_1 .cse1) .cse2))) (fp.mul RNE .cse3 (fp.sub RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 8.0)) .cse3)))))) .cse1)) (fp.geq v_prenex_1 .cse2))))) (and .cse0 (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) RNE 2.0)) (.cse5 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq main_~I~0 .cse4) (fp.geq main_~I~0 .cse5) (not (fp.geq (fp.mul RNE ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) (fp.add RNE .cse5 (let ((.cse6 (fp.sub RNE (fp.div RNE main_~I~0 .cse4) .cse5))) (fp.mul RNE .cse6 (fp.sub RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 8.0)) .cse6)))))) .cse5)) (fp.leq main_~I~0 ((_ to_fp 11 53) RNE 3.0)))))) (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse8 ((_ to_fp 11 53) RNE 2.0)) (.cse7 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse9 (fp.mul RNE ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) (fp.add RNE .cse7 (let ((.cse10 (fp.sub RNE (fp.div RNE v_prenex_3 .cse8) .cse7))) (fp.mul RNE .cse10 (fp.sub RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 8.0)) .cse10)))))))) (and (fp.geq v_prenex_3 .cse7) (fp.geq v_prenex_3 .cse8) (fp.leq .cse9 .cse8) (fp.geq .cse9 .cse7) (fp.leq v_prenex_3 ((_ to_fp 11 53) RNE 3.0))))))))) is different from false [2018-09-20 14:22:23,218 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 2.0)) (.cse2 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq v_prenex_1 .cse1) (fp.leq v_prenex_1 ((_ to_fp 11 53) RNE 3.0)) (not (fp.leq (fp.mul RNE ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) (fp.add RNE .cse2 (let ((.cse3 (fp.sub RNE (fp.div RNE v_prenex_1 .cse1) .cse2))) (fp.mul RNE .cse3 (fp.sub RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 8.0)) .cse3)))))) .cse1)) (fp.geq v_prenex_1 .cse2))))) (and (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse5 ((_ to_fp 11 53) RNE 2.0)) (.cse4 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse6 (fp.mul RNE ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) (fp.add RNE .cse4 (let ((.cse7 (fp.sub RNE (fp.div RNE v_prenex_3 .cse5) .cse4))) (fp.mul RNE .cse7 (fp.sub RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 8.0)) .cse7)))))))) (and (fp.geq v_prenex_3 .cse4) (fp.geq v_prenex_3 .cse5) (fp.leq .cse6 .cse5) (fp.geq .cse6 .cse4) (fp.leq v_prenex_3 ((_ to_fp 11 53) RNE 3.0)))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and .cse0 (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse8 ((_ to_fp 11 53) RNE 2.0)) (.cse9 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq main_~I~0 .cse8) (fp.geq main_~I~0 .cse9) (not (fp.geq (fp.mul RNE ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) (fp.add RNE .cse9 (let ((.cse10 (fp.sub RNE (fp.div RNE main_~I~0 .cse8) .cse9))) (fp.mul RNE .cse10 (fp.sub RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 8.0)) .cse10)))))) .cse9)) (fp.leq main_~I~0 ((_ to_fp 11 53) RNE 3.0)))))))) is different from false [2018-09-20 14:22:34,030 WARN L797 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 2.0)) (.cse1 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq v_prenex_1 .cse0) (fp.leq v_prenex_1 ((_ to_fp 11 53) RNE 3.0)) (not (fp.leq (fp.mul RNE ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) (fp.add RNE .cse1 (let ((.cse2 (fp.sub RNE (fp.div RNE v_prenex_1 .cse0) .cse1))) (fp.mul RNE .cse2 (fp.sub RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 8.0)) .cse2)))))) .cse0)) (fp.geq v_prenex_1 .cse1)))) (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) RNE 2.0)) (.cse4 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq main_~I~0 .cse3) (fp.geq main_~I~0 .cse4) (not (fp.geq (fp.mul RNE ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) (fp.add RNE .cse4 (let ((.cse5 (fp.sub RNE (fp.div RNE main_~I~0 .cse3) .cse4))) (fp.mul RNE .cse5 (fp.sub RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 8.0)) .cse5)))))) .cse4)) (fp.leq main_~I~0 ((_ to_fp 11 53) RNE 3.0)))))) is different from false [2018-09-20 14:22:36,161 WARN L819 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 2.0)) (.cse1 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq v_prenex_1 .cse0) (fp.leq v_prenex_1 ((_ to_fp 11 53) RNE 3.0)) (not (fp.leq (fp.mul RNE ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) (fp.add RNE .cse1 (let ((.cse2 (fp.sub RNE (fp.div RNE v_prenex_1 .cse0) .cse1))) (fp.mul RNE .cse2 (fp.sub RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 8.0)) .cse2)))))) .cse0)) (fp.geq v_prenex_1 .cse1)))) (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) RNE 2.0)) (.cse4 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq main_~I~0 .cse3) (fp.geq main_~I~0 .cse4) (not (fp.geq (fp.mul RNE ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) (fp.add RNE .cse4 (let ((.cse5 (fp.sub RNE (fp.div RNE main_~I~0 .cse3) .cse4))) (fp.mul RNE .cse5 (fp.sub RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 8.0)) .cse5)))))) .cse4)) (fp.leq main_~I~0 ((_ to_fp 11 53) RNE 3.0)))))) is different from true [2018-09-20 14:22:36,171 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 14:22:36,172 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:22:36,203 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:22:36,203 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-20 14:22:36,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-20 14:22:36,224 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-20 14:22:36,225 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=8, Unknown=6, NotChecked=28, Total=56 [2018-09-20 14:22:36,228 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 8 states. [2018-09-20 14:22:41,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:22:41,288 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-09-20 14:22:41,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-20 14:22:41,291 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2018-09-20 14:22:41,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:22:41,301 INFO L225 Difference]: With dead ends: 31 [2018-09-20 14:22:41,301 INFO L226 Difference]: Without dead ends: 12 [2018-09-20 14:22:41,305 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=14, Invalid=8, Unknown=6, NotChecked=28, Total=56 [2018-09-20 14:22:41,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-09-20 14:22:41,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-09-20 14:22:41,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-09-20 14:22:41,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-09-20 14:22:41,344 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2018-09-20 14:22:41,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:22:41,345 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-09-20 14:22:41,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-20 14:22:41,345 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-09-20 14:22:41,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-20 14:22:41,347 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:22:41,348 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:22:41,348 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:22:41,348 INFO L82 PathProgramCache]: Analyzing trace with hash -2109639053, now seen corresponding path program 1 times [2018-09-20 14:22:41,349 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:22:41,349 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 14:22:41,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:22:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:22:47,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:22:50,078 WARN L797 $PredicateComparison]: unable to prove that (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq main_~I~0 .cse0) (not (fp.geq main_~I~0 ((_ to_fp 11 53) RNE 2.0))) (= (fp.add RNE .cse0 (let ((.cse1 (fp.sub RNE main_~I~0 .cse0))) (fp.mul RNE .cse1 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse1 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse1 ((_ to_fp 11 53) RNE (/ 1.0 16.0))))))))) c_main_~S~0)))) is different from false [2018-09-20 14:22:52,219 WARN L819 $PredicateComparison]: unable to prove that (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq main_~I~0 .cse0) (not (fp.geq main_~I~0 ((_ to_fp 11 53) RNE 2.0))) (= (fp.add RNE .cse0 (let ((.cse1 (fp.sub RNE main_~I~0 .cse0))) (fp.mul RNE .cse1 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse1 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse1 ((_ to_fp 11 53) RNE (/ 1.0 16.0))))))))) c_main_~S~0)))) is different from true [2018-09-20 14:23:09,560 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and .cse0 (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 1.0)) (.cse3 ((_ to_fp 11 53) RNE 2.0))) (and (not (fp.leq (fp.add RNE .cse1 (let ((.cse2 (fp.sub RNE main_~I~0 .cse1))) (fp.mul RNE .cse2 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse2 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse2 ((_ to_fp 11 53) RNE (/ 1.0 16.0))))))))) .cse3)) (fp.geq main_~I~0 .cse1) (not (fp.geq main_~I~0 .cse3)))))) (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse5 (fp.add RNE .cse4 (let ((.cse7 (fp.sub RNE v_prenex_7 .cse4))) (fp.mul RNE .cse7 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse7 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse7 ((_ to_fp 11 53) RNE (/ 1.0 16.0)))))))))) (.cse6 ((_ to_fp 11 53) RNE 2.0))) (and (fp.geq v_prenex_7 .cse4) (fp.geq .cse5 .cse4) (fp.leq .cse5 .cse6) (not (fp.geq v_prenex_7 .cse6))))))) (and (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse8 ((_ to_fp 11 53) RNE 1.0))) (and (not (fp.geq v_prenex_5 ((_ to_fp 11 53) RNE 2.0))) (not (fp.geq (fp.add RNE .cse8 (let ((.cse9 (fp.sub RNE v_prenex_5 .cse8))) (fp.mul RNE .cse9 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse9 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse9 ((_ to_fp 11 53) RNE (/ 1.0 16.0))))))))) .cse8)) (fp.geq v_prenex_5 .cse8)))) .cse0))) is different from false [2018-09-20 14:23:24,779 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 1.0))) (and (not (fp.geq v_prenex_5 ((_ to_fp 11 53) RNE 2.0))) (not (fp.geq (fp.add RNE .cse1 (let ((.cse2 (fp.sub RNE v_prenex_5 .cse1))) (fp.mul RNE .cse2 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse2 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse2 ((_ to_fp 11 53) RNE (/ 1.0 16.0))))))))) .cse1)) (fp.geq v_prenex_5 .cse1))))) (and (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse4 (fp.add RNE .cse3 (let ((.cse6 (fp.sub RNE v_prenex_7 .cse3))) (fp.mul RNE .cse6 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse6 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse6 ((_ to_fp 11 53) RNE (/ 1.0 16.0)))))))))) (.cse5 ((_ to_fp 11 53) RNE 2.0))) (and (fp.geq v_prenex_7 .cse3) (fp.geq .cse4 .cse3) (fp.leq .cse4 .cse5) (not (fp.geq v_prenex_7 .cse5))))))) (and .cse0 (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse7 ((_ to_fp 11 53) RNE 1.0)) (.cse9 ((_ to_fp 11 53) RNE 2.0))) (and (not (fp.leq (fp.add RNE .cse7 (let ((.cse8 (fp.sub RNE main_~I~0 .cse7))) (fp.mul RNE .cse8 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse8 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse8 ((_ to_fp 11 53) RNE (/ 1.0 16.0))))))))) .cse9)) (fp.geq main_~I~0 .cse7) (not (fp.geq main_~I~0 .cse9)))))))) is different from false [2018-09-20 14:23:35,628 WARN L797 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (not (fp.geq v_prenex_5 ((_ to_fp 11 53) RNE 2.0))) (not (fp.geq (fp.add RNE .cse0 (let ((.cse1 (fp.sub RNE v_prenex_5 .cse0))) (fp.mul RNE .cse1 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse1 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse1 ((_ to_fp 11 53) RNE (/ 1.0 16.0))))))))) .cse0)) (fp.geq v_prenex_5 .cse0)))) (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 1.0)) (.cse4 ((_ to_fp 11 53) RNE 2.0))) (and (not (fp.leq (fp.add RNE .cse2 (let ((.cse3 (fp.sub RNE main_~I~0 .cse2))) (fp.mul RNE .cse3 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse3 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse3 ((_ to_fp 11 53) RNE (/ 1.0 16.0))))))))) .cse4)) (fp.geq main_~I~0 .cse2) (not (fp.geq main_~I~0 .cse4)))))) is different from false [2018-09-20 14:23:37,759 WARN L819 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (not (fp.geq v_prenex_5 ((_ to_fp 11 53) RNE 2.0))) (not (fp.geq (fp.add RNE .cse0 (let ((.cse1 (fp.sub RNE v_prenex_5 .cse0))) (fp.mul RNE .cse1 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse1 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse1 ((_ to_fp 11 53) RNE (/ 1.0 16.0))))))))) .cse0)) (fp.geq v_prenex_5 .cse0)))) (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 1.0)) (.cse4 ((_ to_fp 11 53) RNE 2.0))) (and (not (fp.leq (fp.add RNE .cse2 (let ((.cse3 (fp.sub RNE main_~I~0 .cse2))) (fp.mul RNE .cse3 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse3 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse3 ((_ to_fp 11 53) RNE (/ 1.0 16.0))))))))) .cse4)) (fp.geq main_~I~0 .cse2) (not (fp.geq main_~I~0 .cse4)))))) is different from true [2018-09-20 14:23:37,762 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 14:23:37,762 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:23:37,788 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:23:37,788 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-20 14:23:37,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-20 14:23:37,790 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-20 14:23:37,791 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-09-20 14:23:37,791 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 7 states. [2018-09-20 14:23:42,318 WARN L797 $PredicateComparison]: unable to prove that (and (fp.geq c_main_~I~0 ((_ to_fp 11 53) RNE 1.0)) (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq main_~I~0 .cse0) (not (fp.geq main_~I~0 ((_ to_fp 11 53) RNE 2.0))) (= (fp.add RNE .cse0 (let ((.cse1 (fp.sub RNE main_~I~0 .cse0))) (fp.mul RNE .cse1 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse1 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse1 ((_ to_fp 11 53) RNE (/ 1.0 16.0))))))))) c_main_~S~0))))) is different from false [2018-09-20 14:23:42,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:23:42,330 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-09-20 14:23:42,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 14:23:42,330 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-09-20 14:23:42,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:23:42,331 INFO L225 Difference]: With dead ends: 12 [2018-09-20 14:23:42,331 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 14:23:42,334 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=13, Invalid=6, Unknown=7, NotChecked=30, Total=56 [2018-09-20 14:23:42,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 14:23:42,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 14:23:42,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 14:23:42,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 14:23:42,335 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-09-20 14:23:42,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:23:42,336 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 14:23:42,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-20 14:23:42,336 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 14:23:42,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 14:23:42,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 14:23:59,368 WARN L178 SmtUtils]: Spent 16.87 s on a formula simplification. DAG size of input: 154 DAG size of output: 1 [2018-09-20 14:24:23,170 WARN L178 SmtUtils]: Spent 23.80 s on a formula simplification that was a NOOP. DAG size: 47 [2018-09-20 14:24:23,172 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 14:24:23,172 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 14:24:23,173 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 14:24:23,173 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 14:24:23,173 INFO L422 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) ~sqrt2~0) [2018-09-20 14:24:23,173 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 14:24:23,173 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 14:24:23,174 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 15 27) the Hoare annotation is: true [2018-09-20 14:24:23,174 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 15 27) no Hoare annotation was computed. [2018-09-20 14:24:23,174 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-20 14:24:23,175 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 15 27) no Hoare annotation was computed. [2018-09-20 14:24:23,175 INFO L426 ceAbstractionStarter]: For program point L22(lines 22 23) no Hoare annotation was computed. [2018-09-20 14:24:23,176 INFO L422 ceAbstractionStarter]: At program point L22-2(lines 22 23) the Hoare annotation is: (or (and (fp.geq main_~I~0 ((_ to_fp 11 53) RNE 1.0)) (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq main_~I~0 .cse0) (not (fp.geq main_~I~0 ((_ to_fp 11 53) RNE 2.0))) (= (fp.add RNE .cse0 (let ((.cse1 (fp.sub RNE main_~I~0 .cse0))) (fp.mul RNE .cse1 (fp.add RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE .cse1 (fp.add RNE (fp.neg ((_ to_fp 11 53) RNE (/ 1.0 8.0))) (fp.mul RNE .cse1 ((_ to_fp 11 53) RNE (/ 1.0 16.0))))))))) main_~S~0))))) (exists ((main_~I~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 2.0)) (.cse3 ((_ to_fp 11 53) RNE 1.0))) (and (fp.geq main_~I~0 .cse2) (fp.geq main_~I~0 .cse3) (fp.leq main_~I~0 ((_ to_fp 11 53) RNE 3.0)) (= (fp.mul RNE ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) (fp.add RNE .cse3 (let ((.cse4 (fp.sub RNE (fp.div RNE main_~I~0 .cse2) .cse3))) (fp.mul RNE .cse4 (fp.sub RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 8.0)) .cse4)))))) main_~S~0)))) (not (= ((_ to_fp 11 53) RNE (/ 11863283.0 8388608.0)) ~sqrt2~0))) [2018-09-20 14:24:23,177 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 11) the Hoare annotation is: true [2018-09-20 14:24:23,177 INFO L426 ceAbstractionStarter]: For program point L11(line 11) no Hoare annotation was computed. [2018-09-20 14:24:23,177 INFO L426 ceAbstractionStarter]: For program point L11-1(line 11) no Hoare annotation was computed. [2018-09-20 14:24:23,177 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 11) no Hoare annotation was computed. [2018-09-20 14:24:23,177 INFO L426 ceAbstractionStarter]: For program point L11-3(line 11) no Hoare annotation was computed. [2018-09-20 14:24:23,178 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2018-09-20 14:24:23,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 02:24:23 BoogieIcfgContainer [2018-09-20 14:24:23,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 14:24:23,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 14:24:23,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 14:24:23,182 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 14:24:23,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:21:40" (3/4) ... [2018-09-20 14:24:23,188 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 14:24:23,195 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 14:24:23,195 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 14:24:23,195 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-09-20 14:24:23,200 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-20 14:24:23,200 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-20 14:24:23,200 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 14:24:23,246 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 14:24:23,246 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 14:24:23,247 INFO L168 Benchmark]: Toolchain (without parser) took 167563.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 951.9 MB in the beginning and 987.6 MB in the end (delta: -35.8 MB). Peak memory consumption was 52.3 MB. Max. memory is 11.5 GB. [2018-09-20 14:24:23,249 INFO L168 Benchmark]: CDTParser took 0.19 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 14:24:23,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.22 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 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 14:24:23,250 INFO L168 Benchmark]: Boogie Preprocessor took 38.26 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 14:24:23,251 INFO L168 Benchmark]: RCFGBuilder took 4626.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -126.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-09-20 14:24:23,252 INFO L168 Benchmark]: TraceAbstraction took 162535.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 994.7 MB in the end (delta: 72.5 MB). Peak memory consumption was 72.5 MB. Max. memory is 11.5 GB. [2018-09-20 14:24:23,254 INFO L168 Benchmark]: Witness Printer took 64.01 ms. Allocated memory is still 1.1 GB. Free memory was 994.7 MB in the beginning and 987.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-09-20 14:24:23,258 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 289.22 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 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 38.26 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 4626.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -126.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 162535.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 994.7 MB in the end (delta: 72.5 MB). Peak memory consumption was 72.5 MB. Max. memory is 11.5 GB. * Witness Printer took 64.01 ms. Allocated memory is still 1.1 GB. Free memory was 994.7 MB in the beginning and 987.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 162.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 9.6s AutomataDifference, 0.0s DeadEndRemovalTime, 40.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 3 SDslu, 62 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.2s 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 143 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 1034 FormulaSimplificationTreeSizeReductionInter, 40.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 11.7s SatisfiabilityAnalysisTime, 99.8s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 8 QuantifiedInterpolants, 14320 SizeOfPredicates, 7 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...