/usr/bin/java -ea -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/float_int_inv_square.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-11 00:31:46,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-11 00:31:46,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-11 00:31:46,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-11 00:31:46,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-11 00:31:46,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-11 00:31:46,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-11 00:31:46,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-11 00:31:46,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-11 00:31:46,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-11 00:31:46,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-11 00:31:46,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-11 00:31:46,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-11 00:31:46,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-11 00:31:46,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-11 00:31:46,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-11 00:31:46,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-11 00:31:46,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-11 00:31:46,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-11 00:31:46,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-11 00:31:46,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-11 00:31:46,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-11 00:31:46,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-11 00:31:46,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-11 00:31:46,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-11 00:31:46,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-11 00:31:46,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-11 00:31:46,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-11 00:31:46,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-11 00:31:46,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-11 00:31:46,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-11 00:31:46,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-11 00:31:46,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-11 00:31:46,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-11 00:31:46,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-11 00:31:46,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-11 00:31:46,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-11 00:31:46,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-11 00:31:46,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-11 00:31:46,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-11 00:31:46,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-11 00:31:46,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-11 00:31:46,738 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-11 00:31:46,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-11 00:31:46,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-11 00:31:46,739 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-11 00:31:46,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-11 00:31:46,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-11 00:31:46,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-11 00:31:46,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-11 00:31:46,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-11 00:31:46,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-11 00:31:46,741 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-11 00:31:46,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-11 00:31:46,741 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-11 00:31:46,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-11 00:31:46,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-11 00:31:46,742 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-11 00:31:46,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-11 00:31:46,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-11 00:31:46,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-11 00:31:46,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-11 00:31:46,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-11 00:31:46,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-11 00:31:46,743 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 [2020-07-11 00:31:47,025 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-11 00:31:47,037 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-11 00:31:47,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-11 00:31:47,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-11 00:31:47,042 INFO L275 PluginConnector]: CDTParser initialized [2020-07-11 00:31:47,043 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/float_int_inv_square.c [2020-07-11 00:31:47,118 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915792c0d/a401241e71644de39cb485d3764483f3/FLAG076213541 [2020-07-11 00:31:47,586 INFO L306 CDTParser]: Found 1 translation units. [2020-07-11 00:31:47,587 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/float_int_inv_square.c [2020-07-11 00:31:47,593 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915792c0d/a401241e71644de39cb485d3764483f3/FLAG076213541 [2020-07-11 00:31:47,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915792c0d/a401241e71644de39cb485d3764483f3 [2020-07-11 00:31:47,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-11 00:31:47,963 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-11 00:31:47,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-11 00:31:47,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-11 00:31:47,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-11 00:31:47,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 12:31:47" (1/1) ... [2020-07-11 00:31:47,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756d2fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:31:47, skipping insertion in model container [2020-07-11 00:31:47,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 12:31:47" (1/1) ... [2020-07-11 00:31:47,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-11 00:31:48,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-11 00:31:48,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 00:31:48,286 INFO L203 MainTranslator]: Completed pre-run [2020-07-11 00:31:48,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 00:31:48,331 INFO L208 MainTranslator]: Completed translation [2020-07-11 00:31:48,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:31:48 WrapperNode [2020-07-11 00:31:48,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-11 00:31:48,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-11 00:31:48,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-11 00:31:48,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-11 00:31:48,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:31:48" (1/1) ... [2020-07-11 00:31:48,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:31:48" (1/1) ... [2020-07-11 00:31:48,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:31:48" (1/1) ... [2020-07-11 00:31:48,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:31:48" (1/1) ... [2020-07-11 00:31:48,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:31:48" (1/1) ... [2020-07-11 00:31:48,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:31:48" (1/1) ... [2020-07-11 00:31:48,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:31:48" (1/1) ... [2020-07-11 00:31:48,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-11 00:31:48,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-11 00:31:48,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-11 00:31:48,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-11 00:31:48,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:31:48" (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 [2020-07-11 00:31:48,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-11 00:31:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-11 00:31:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-11 00:31:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-11 00:31:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-11 00:31:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-11 00:31:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-11 00:31:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-11 00:31:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-11 00:31:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-11 00:31:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-11 00:31:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-11 00:31:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-11 00:31:48,783 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-11 00:31:48,783 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-11 00:31:48,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 12:31:48 BoogieIcfgContainer [2020-07-11 00:31:48,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-11 00:31:48,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-11 00:31:48,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-11 00:31:48,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-11 00:31:48,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 12:31:47" (1/3) ... [2020-07-11 00:31:48,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a91016c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 12:31:48, skipping insertion in model container [2020-07-11 00:31:48,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:31:48" (2/3) ... [2020-07-11 00:31:48,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a91016c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 12:31:48, skipping insertion in model container [2020-07-11 00:31:48,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 12:31:48" (3/3) ... [2020-07-11 00:31:48,817 INFO L109 eAbstractionObserver]: Analyzing ICFG float_int_inv_square.c [2020-07-11 00:31:48,827 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-11 00:31:48,833 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-11 00:31:48,848 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-11 00:31:48,869 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-11 00:31:48,869 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-11 00:31:48,869 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-11 00:31:48,869 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-11 00:31:48,870 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-11 00:31:48,870 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-11 00:31:48,870 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-11 00:31:48,870 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-11 00:31:48,884 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-07-11 00:31:48,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-11 00:31:48,896 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 00:31:48,897 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] [2020-07-11 00:31:48,897 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 00:31:48,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 00:31:48,902 INFO L82 PathProgramCache]: Analyzing trace with hash -865761349, now seen corresponding path program 1 times [2020-07-11 00:31:48,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 00:31:48,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248880988] [2020-07-11 00:31:48,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 00:31:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-11 00:31:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-11 00:31:49,048 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-11 00:31:49,049 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-11 00:31:49,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-11 00:31:49,074 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-11 00:31:49,074 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-11 00:31:49,075 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-11 00:31:49,075 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-11 00:31:49,075 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-11 00:31:49,075 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-11 00:31:49,075 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-11 00:31:49,076 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-11 00:31:49,076 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-11 00:31:49,076 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-11 00:31:49,076 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-11 00:31:49,076 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-11 00:31:49,076 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-11 00:31:49,077 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-11 00:31:49,077 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-11 00:31:49,077 WARN L170 areAnnotationChecker]: L7-1 has no Hoare annotation [2020-07-11 00:31:49,077 WARN L170 areAnnotationChecker]: L7-3 has no Hoare annotation [2020-07-11 00:31:49,077 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-11 00:31:49,078 WARN L170 areAnnotationChecker]: L9-1 has no Hoare annotation [2020-07-11 00:31:49,078 WARN L170 areAnnotationChecker]: L9-1 has no Hoare annotation [2020-07-11 00:31:49,078 WARN L170 areAnnotationChecker]: L9-3 has no Hoare annotation [2020-07-11 00:31:49,078 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-11 00:31:49,078 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-11 00:31:49,078 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-11 00:31:49,079 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-11 00:31:49,079 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-11 00:31:49,079 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation [2020-07-11 00:31:49,079 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-11 00:31:49,079 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-11 00:31:49,079 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-11 00:31:49,080 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-11 00:31:49,080 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-11 00:31:49,080 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-11 00:31:49,080 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-11 00:31:49,080 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-11 00:31:49,081 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-11 00:31:49,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.07 12:31:49 BoogieIcfgContainer [2020-07-11 00:31:49,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-11 00:31:49,089 INFO L168 Benchmark]: Toolchain (without parser) took 1126.08 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 101.3 MB in the beginning and 148.1 MB in the end (delta: -46.8 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-07-11 00:31:49,090 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-11 00:31:49,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.11 ms. Allocated memory is still 143.1 MB. Free memory was 101.1 MB in the beginning and 91.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-11 00:31:49,092 INFO L168 Benchmark]: Boogie Preprocessor took 137.30 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 91.3 MB in the beginning and 179.8 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-11 00:31:49,093 INFO L168 Benchmark]: RCFGBuilder took 317.70 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 163.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-07-11 00:31:49,093 INFO L168 Benchmark]: TraceAbstraction took 285.86 ms. Allocated memory is still 201.3 MB. Free memory was 162.5 MB in the beginning and 148.1 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-07-11 00:31:49,099 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 366.11 ms. Allocated memory is still 143.1 MB. Free memory was 101.1 MB in the beginning and 91.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.30 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 91.3 MB in the beginning and 179.8 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 317.70 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 163.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 285.86 ms. Allocated memory is still 201.3 MB. Free memory was 162.5 MB in the beginning and 148.1 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 20, overapproximation of someBinaryArithmeticFLOAToperation at line 19. Possible FailurePath: [L13] int x; [L14] float y, z; [L16] x = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, x=0] [L17] CALL assume_abort_if_not(x >= -10 && x <= 10) VAL [\old(cond)=1] [L7] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L17] RET assume_abort_if_not(x >= -10 && x <= 10) VAL [x=0] [L19] y = x*x - 4.f VAL [x=0] [L20] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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=30occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 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...