/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-benchs/sqrt_poly2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:30:00,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:30:00,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:30:00,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:30:00,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:30:00,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:30:00,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:30:00,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:30:00,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:30:00,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:30:00,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:30:00,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:30:00,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:30:00,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:30:00,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:30:00,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:30:00,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:30:00,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:30:00,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:30:00,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:30:00,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:30:00,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:30:00,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:30:00,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:30:00,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:30:00,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:30:00,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:30:00,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:30:00,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:30:00,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:30:00,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:30:00,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:30:00,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:30:00,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:30:00,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:30:00,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:30:00,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:30:00,523 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:30:00,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:30:00,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:30:00,528 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:30:00,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:30:00,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:30:00,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:30:00,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:30:00,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:30:00,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:30:00,530 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:30:00,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:30:00,530 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:30:00,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:30:00,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:30:00,534 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:30:00,534 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:30:00,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:30:00,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:30:00,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:30:00,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:30:00,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:30:00,535 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:30:00,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:30:00,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:30:00,835 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:30:00,837 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:30:00,837 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:30:00,838 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_poly2.c [2020-08-22 18:30:00,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd01945bb/281150c7ace84953b8ca89047b454507/FLAG4dd484c8e [2020-08-22 18:30:01,367 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:30:01,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_poly2.c [2020-08-22 18:30:01,375 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd01945bb/281150c7ace84953b8ca89047b454507/FLAG4dd484c8e [2020-08-22 18:30:01,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd01945bb/281150c7ace84953b8ca89047b454507 [2020-08-22 18:30:01,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:30:01,739 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:30:01,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:30:01,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:30:01,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:30:01,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:30:01" (1/1) ... [2020-08-22 18:30:01,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59af46a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:30:01, skipping insertion in model container [2020-08-22 18:30:01,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:30:01" (1/1) ... [2020-08-22 18:30:01,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:30:01,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:30:02,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:30:02,016 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:30:02,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:30:02,062 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:30:02,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:30:02 WrapperNode [2020-08-22 18:30:02,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:30:02,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:30:02,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:30:02,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:30:02,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:30:02" (1/1) ... [2020-08-22 18:30:02,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:30:02" (1/1) ... [2020-08-22 18:30:02,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:30:02" (1/1) ... [2020-08-22 18:30:02,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:30:02" (1/1) ... [2020-08-22 18:30:02,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:30:02" (1/1) ... [2020-08-22 18:30:02,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:30:02" (1/1) ... [2020-08-22 18:30:02,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:30:02" (1/1) ... [2020-08-22 18:30:02,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:30:02,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:30:02,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:30:02,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:30:02,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:30:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:30:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:30:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:30:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 18:30:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 18:30:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2020-08-22 18:30:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:30:02,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:30:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 18:30:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 18:30:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 18:30:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 18:30:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2020-08-22 18:30:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:30:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 18:30:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:30:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:30:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 18:30:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:30:02,253 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:30:02,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:30:02,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:30:02,623 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:30:02,623 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 18:30:02,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:30:02 BoogieIcfgContainer [2020-08-22 18:30:02,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:30:02,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:30:02,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:30:02,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:30:02,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:30:01" (1/3) ... [2020-08-22 18:30:02,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2885eee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:30:02, skipping insertion in model container [2020-08-22 18:30:02,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:30:02" (2/3) ... [2020-08-22 18:30:02,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2885eee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:30:02, skipping insertion in model container [2020-08-22 18:30:02,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:30:02" (3/3) ... [2020-08-22 18:30:02,636 INFO L109 eAbstractionObserver]: Analyzing ICFG sqrt_poly2.c [2020-08-22 18:30:02,644 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:30:02,652 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:30:02,666 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:30:02,688 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:30:02,688 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:30:02,688 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:30:02,688 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:30:02,688 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:30:02,688 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:30:02,689 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:30:02,689 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:30:02,705 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2020-08-22 18:30:02,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-22 18:30:02,718 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:30:02,719 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] [2020-08-22 18:30:02,719 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:30:02,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:30:02,725 INFO L82 PathProgramCache]: Analyzing trace with hash 284093711, now seen corresponding path program 1 times [2020-08-22 18:30:02,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:30:02,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862504931] [2020-08-22 18:30:02,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:30:02,785 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:30:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:30:02,930 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:30:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:30:03,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:30:03,096 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:30:03,096 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:30:03,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:30:03,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:30:03 BoogieIcfgContainer [2020-08-22 18:30:03,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:30:03,136 INFO L168 Benchmark]: Toolchain (without parser) took 1395.25 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 102.5 MB in the beginning and 136.5 MB in the end (delta: -33.9 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:30:03,137 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 18:30:03,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.69 ms. Allocated memory is still 138.4 MB. Free memory was 102.3 MB in the beginning and 91.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-08-22 18:30:03,141 INFO L168 Benchmark]: Boogie Preprocessor took 120.47 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 91.1 MB in the beginning and 179.1 MB in the end (delta: -88.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-08-22 18:30:03,142 INFO L168 Benchmark]: RCFGBuilder took 443.90 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 156.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:30:03,143 INFO L168 Benchmark]: TraceAbstraction took 502.69 ms. Allocated memory is still 201.9 MB. Free memory was 156.9 MB in the beginning and 136.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-08-22 18:30:03,154 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 319.69 ms. Allocated memory is still 138.4 MB. Free memory was 102.3 MB in the beginning and 91.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.47 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 91.1 MB in the beginning and 179.1 MB in the end (delta: -88.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 443.90 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 156.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 502.69 ms. Allocated memory is still 201.9 MB. Free memory was 156.9 MB in the beginning and 136.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 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; [L16] double C1 = 0.229761391; [L17] double C2 = 1.296735525; [L18] double C3 = -0.901098370; [L19] double C4 = 0.493553400; [L20] double C5 = -0.118958666; [L56] double x,y; [L58] x = __VERIFIER_nondet_double() [L59] CALL assume_abort_if_not(x >= 1. && x <= 1e10) [L10] COND FALSE !(!cond) [L59] RET assume_abort_if_not(x >= 1. && x <= 1e10) [L61] CALL, EXPR sqrt_custom(x) [L29] union u x; [L30] double r; [L31] int exp; [L33] x.d = a [L35] EXPR x.i[0] [L35] exp = (x.i[0] & 0x7FF00000) >> 20 [L36] EXPR x.i[0] [L36] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L37] EXPR x.d [L37] r = x.d * 0.5 [L39] r = C1+C2+(C3+(C4+C5*r)*r)*r [L41] COND FALSE !(exp % 2 == 0) [L45] r = r * C0 [L48] x.i[0] = (exp/2 + 511) << 20 [L49] EXPR x.d [L49] r = r * x.d [L51] return r; [L51] return r; [L61] RET, EXPR sqrt_custom(x) [L61] y = sqrt_custom(x) [L63] CALL __VERIFIER_assert(y >= 0. && y <= 1e6) [L12] COND TRUE !(cond) [L12] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, 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: No data available, 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...