/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-benchs/sqrt_poly2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 17:01:49,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 17:01:49,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 17:01:49,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 17:01:49,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 17:01:49,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 17:01:49,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 17:01:49,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 17:01:49,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 17:01:49,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 17:01:49,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 17:01:49,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 17:01:49,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 17:01:49,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 17:01:49,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 17:01:49,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 17:01:49,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 17:01:49,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 17:01:49,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 17:01:49,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 17:01:49,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 17:01:49,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 17:01:49,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 17:01:49,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 17:01:49,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 17:01:49,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 17:01:49,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 17:01:49,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 17:01:49,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 17:01:49,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 17:01:49,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 17:01:49,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 17:01:49,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 17:01:49,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 17:01:49,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 17:01:49,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 17:01:49,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 17:01:49,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 17:01:49,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 17:01:49,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 17:01:49,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 17:01:49,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 17:01:49,988 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 17:01:49,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 17:01:49,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 17:01:49,990 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 17:01:49,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 17:01:49,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 17:01:49,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 17:01:49,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 17:01:49,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 17:01:49,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 17:01:49,991 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 17:01:49,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 17:01:49,991 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 17:01:49,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 17:01:49,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 17:01:49,992 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 17:01:49,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 17:01:49,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 17:01:49,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 17:01:49,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 17:01:49,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 17:01:49,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 17:01:49,993 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-17 17:01:50,257 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 17:01:50,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 17:01:50,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 17:01:50,275 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 17:01:50,276 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 17:01:50,276 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_poly2.c [2020-07-17 17:01:50,358 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0544d395/65365a30a0c84ce6a7e2b57264fca969/FLAG8b49665ba [2020-07-17 17:01:50,909 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 17:01:50,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_poly2.c [2020-07-17 17:01:50,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0544d395/65365a30a0c84ce6a7e2b57264fca969/FLAG8b49665ba [2020-07-17 17:01:51,319 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0544d395/65365a30a0c84ce6a7e2b57264fca969 [2020-07-17 17:01:51,329 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 17:01:51,332 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 17:01:51,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 17:01:51,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 17:01:51,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 17:01:51,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:01:51" (1/1) ... [2020-07-17 17:01:51,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f18f3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:01:51, skipping insertion in model container [2020-07-17 17:01:51,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:01:51" (1/1) ... [2020-07-17 17:01:51,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 17:01:51,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 17:01:51,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:01:51,572 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 17:01:51,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:01:51,643 INFO L208 MainTranslator]: Completed translation [2020-07-17 17:01:51,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:01:51 WrapperNode [2020-07-17 17:01:51,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 17:01:51,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 17:01:51,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 17:01:51,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 17:01:51,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:01:51" (1/1) ... [2020-07-17 17:01:51,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:01:51" (1/1) ... [2020-07-17 17:01:51,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:01:51" (1/1) ... [2020-07-17 17:01:51,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:01:51" (1/1) ... [2020-07-17 17:01:51,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:01:51" (1/1) ... [2020-07-17 17:01:51,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:01:51" (1/1) ... [2020-07-17 17:01:51,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:01:51" (1/1) ... [2020-07-17 17:01:51,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 17:01:51,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 17:01:51,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 17:01:51,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 17:01:51,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:01:51" (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 [2020-07-17 17:01:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 17:01:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 17:01:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 17:01:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 17:01:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2020-07-17 17:01:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 17:01:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 17:01:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-17 17:01:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 17:01:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 17:01:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 17:01:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2020-07-17 17:01:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 17:01:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 17:01:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 17:01:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 17:01:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 17:01:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 17:01:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 17:01:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 17:01:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 17:01:52,169 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 17:01:52,169 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 17:01:52,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:01:52 BoogieIcfgContainer [2020-07-17 17:01:52,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 17:01:52,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 17:01:52,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 17:01:52,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 17:01:52,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 05:01:51" (1/3) ... [2020-07-17 17:01:52,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5d5279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:01:52, skipping insertion in model container [2020-07-17 17:01:52,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:01:51" (2/3) ... [2020-07-17 17:01:52,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5d5279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:01:52, skipping insertion in model container [2020-07-17 17:01:52,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:01:52" (3/3) ... [2020-07-17 17:01:52,182 INFO L109 eAbstractionObserver]: Analyzing ICFG sqrt_poly2.c [2020-07-17 17:01:52,192 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 17:01:52,200 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 17:01:52,214 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 17:01:52,234 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 17:01:52,234 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 17:01:52,234 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 17:01:52,234 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 17:01:52,234 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 17:01:52,234 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 17:01:52,234 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 17:01:52,234 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 17:01:52,252 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2020-07-17 17:01:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-17 17:01:52,264 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:01:52,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:01:52,266 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:01:52,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:01:52,271 INFO L82 PathProgramCache]: Analyzing trace with hash 284093711, now seen corresponding path program 1 times [2020-07-17 17:01:52,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:01:52,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83509888] [2020-07-17 17:01:52,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:01:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 17:01:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 17:01:52,611 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 17:01:52,613 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 17:01:52,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 17:01:52,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 05:01:52 BoogieIcfgContainer [2020-07-17 17:01:52,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 17:01:52,718 INFO L168 Benchmark]: Toolchain (without parser) took 1385.18 ms. Allocated memory was 145.2 MB in the beginning and 222.3 MB in the end (delta: 77.1 MB). Free memory was 103.0 MB in the beginning and 162.6 MB in the end (delta: -59.6 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2020-07-17 17:01:52,720 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 145.2 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 17:01:52,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.93 ms. Allocated memory was 145.2 MB in the beginning and 174.6 MB in the end (delta: 29.4 MB). Free memory was 102.6 MB in the beginning and 145.1 MB in the end (delta: -42.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-07-17 17:01:52,725 INFO L168 Benchmark]: Boogie Preprocessor took 133.19 ms. Allocated memory was 174.6 MB in the beginning and 222.3 MB in the end (delta: 47.7 MB). Free memory was 145.1 MB in the beginning and 207.1 MB in the end (delta: -62.0 MB). Peak memory consumption was 662.1 kB. Max. memory is 7.1 GB. [2020-07-17 17:01:52,725 INFO L168 Benchmark]: RCFGBuilder took 396.21 ms. Allocated memory is still 222.3 MB. Free memory was 207.1 MB in the beginning and 184.3 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-07-17 17:01:52,727 INFO L168 Benchmark]: TraceAbstraction took 539.10 ms. Allocated memory is still 222.3 MB. Free memory was 183.4 MB in the beginning and 162.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-07-17 17:01:52,738 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 145.2 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 310.93 ms. Allocated memory was 145.2 MB in the beginning and 174.6 MB in the end (delta: 29.4 MB). Free memory was 102.6 MB in the beginning and 145.1 MB in the end (delta: -42.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.19 ms. Allocated memory was 174.6 MB in the beginning and 222.3 MB in the end (delta: 47.7 MB). Free memory was 145.1 MB in the beginning and 207.1 MB in the end (delta: -62.0 MB). Peak memory consumption was 662.1 kB. Max. memory is 7.1 GB. * RCFGBuilder took 396.21 ms. Allocated memory is still 222.3 MB. Free memory was 207.1 MB in the beginning and 184.3 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 539.10 ms. Allocated memory is still 222.3 MB. Free memory was 183.4 MB in the beginning and 162.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 36, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of bitwiseAnd at line 35, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 63. Possible FailurePath: [L15] double C0 = 1.414213538; VAL [\old(C0)=4294967299, \old(C1)=4294967314, \old(C2)=4294967303, \old(C3)=4294967317, \old(C4)=4294967301, \old(C5)=4294967311, C0=707106769/500000000, C1=4294967314, C2=4294967303, C3=4294967317, C4=4294967301, C5=4294967311] [L16] double C1 = 0.229761391; VAL [\old(C0)=4294967299, \old(C1)=4294967314, \old(C2)=4294967303, \old(C3)=4294967317, \old(C4)=4294967301, \old(C5)=4294967311, C0=707106769/500000000, C1=229761391/1000000000, C2=4294967303, C3=4294967317, C4=4294967301, C5=4294967311] [L17] double C2 = 1.296735525; VAL [\old(C0)=4294967299, \old(C1)=4294967314, \old(C2)=4294967303, \old(C3)=4294967317, \old(C4)=4294967301, \old(C5)=4294967311, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C3=4294967317, C4=4294967301, C5=4294967311] [L18] double C3 = -0.901098370; VAL [\old(C0)=4294967299, \old(C1)=4294967314, \old(C2)=4294967303, \old(C3)=4294967317, \old(C4)=4294967301, \old(C5)=4294967311, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=4294967301, C5=4294967311] [L19] double C4 = 0.493553400; VAL [\old(C0)=4294967299, \old(C1)=4294967314, \old(C2)=4294967303, \old(C3)=4294967317, \old(C4)=4294967301, \old(C5)=4294967311, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, C5=4294967311] [L20] double C5 = -0.118958666; VAL [\old(C0)=4294967299, \old(C1)=4294967314, \old(C2)=4294967303, \old(C3)=4294967317, \old(C4)=4294967301, \old(C5)=4294967311, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L56] double x,y; VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L58] x = __VERIFIER_nondet_double() VAL [__VERIFIER_nondet_double()=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x=4294967302] [L59] CALL assume_abort_if_not(x >= 1. && x <= 1e10) VAL [\old(cond)=1, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L10] COND FALSE !(!cond) VAL [\old(cond)=1, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=1] [L59] RET assume_abort_if_not(x >= 1. && x <= 1e10) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x=4294967302] [L61] CALL, EXPR sqrt_custom(x) VAL [\old(a)=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L29] union u x; VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={2:0}] [L30] double r; VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={2:0}] [L31] int exp; VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={2:0}] [L33] x.d = a VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={2:0}] [L35] EXPR x.i[0] VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={2:0}, x.i[0]=4294967298] [L35] exp = (x.i[0] & 0x7FF00000) >> 20 VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, exp = (x.i[0] & 0x7FF00000) >> 20=4294967312, x={2:0}, x.i[0]=4294967298] [L36] EXPR x.i[0] VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, x={2:0}, x.i[0]=4294967315] [L36] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, x={2:0}, x.i[0]=4294967315] [L37] EXPR x.d VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, x={2:0}, x.d=4294967307] [L37] r = x.d * 0.5 VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, x={2:0}, x.d=4294967307] [L39] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, x={2:0}] [L41] COND FALSE !(exp % 2 == 0) VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, x={2:0}] [L45] r = r * C0 VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, x={2:0}] [L48] x.i[0] = (exp/2 + 511) << 20 VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, x={2:0}] [L49] EXPR x.d VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, x={2:0}, x.d=4294967296] [L49] r = r * x.d VAL [\old(a)=4294967302, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, x={2:0}, x.d=4294967296] [L51] return r; VAL [\old(a)=4294967302, \result=4294967304, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, r=4294967304, x={2:0}] [L51] return r; VAL [\old(a)=4294967302, \result=4294967304, a=4294967302, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-1, r=4294967304] [L61] RET, EXPR sqrt_custom(x) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, sqrt_custom(x)=4294967304, x=4294967302] [L61] y = sqrt_custom(x) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, sqrt_custom(x)=4294967304, x=4294967302, y=4294967304] [L63] CALL __VERIFIER_assert(y >= 0. && y <= 1e6) VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L12] COND TRUE !(cond) VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=0] [L12] __VERIFIER_error() VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...