/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-newlib/double_req_bl_1072a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:00:57,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:00:57,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:00:57,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:00:57,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:00:57,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:00:57,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:00:57,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:00:57,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:00:57,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:00:57,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:00:57,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:00:57,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:00:57,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:00:57,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:00:57,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:00:57,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:00:57,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:00:57,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:00:57,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:00:57,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:00:57,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:00:57,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:00:57,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:00:57,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:00:57,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:00:57,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:00:57,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:00:57,698 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:00:57,721 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:00:57,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:00:57,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:00:57,723 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:00:57,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:00:57,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:00:57,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:00:57,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:00:57,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:00:57,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:00:57,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:00:57,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:00:57,731 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:00:57,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:00:57,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:00:57,732 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:00:57,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:00:57,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:00:57,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:00:57,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:00:57,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:00:57,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:00:57,734 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:00:58,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:00:58,041 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:00:58,043 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:00:58,045 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:00:58,045 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:00:58,046 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1072a.c [2020-07-07 13:00:58,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f16454c/3aff688264904c618c106316f12f9c59/FLAGb5a77a86b [2020-07-07 13:00:58,592 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:00:58,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1072a.c [2020-07-07 13:00:58,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f16454c/3aff688264904c618c106316f12f9c59/FLAGb5a77a86b [2020-07-07 13:00:58,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f16454c/3aff688264904c618c106316f12f9c59 [2020-07-07 13:00:58,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:00:58,971 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:00:58,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:00:58,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:00:58,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:00:58,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:00:58" (1/1) ... [2020-07-07 13:00:58,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be77a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:58, skipping insertion in model container [2020-07-07 13:00:58,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:00:58" (1/1) ... [2020-07-07 13:00:58,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:00:59,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:00:59,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:00:59,332 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:00:59,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:00:59,512 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:00:59,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:59 WrapperNode [2020-07-07 13:00:59,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:00:59,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:00:59,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:00:59,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:00:59,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:59" (1/1) ... [2020-07-07 13:00:59,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:59" (1/1) ... [2020-07-07 13:00:59,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:59" (1/1) ... [2020-07-07 13:00:59,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:59" (1/1) ... [2020-07-07 13:00:59,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:59" (1/1) ... [2020-07-07 13:00:59,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:59" (1/1) ... [2020-07-07 13:00:59,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:59" (1/1) ... [2020-07-07 13:00:59,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:00:59,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:00:59,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:00:59,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:00:59,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:59" (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 [2020-07-07 13:00:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:00:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:00:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-07 13:00:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2020-07-07 13:00:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-07-07 13:00:59,652 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:00:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:00:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-07 13:00:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2020-07-07 13:00:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:00:59,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 13:00:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:00:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:00:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:00:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 13:00:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-07-07 13:00:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:00:59,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:00:59,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:01:00,141 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:01:00,141 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-07-07 13:01:00,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:01:00 BoogieIcfgContainer [2020-07-07 13:01:00,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:01:00,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:01:00,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:01:00,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:01:00,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:00:58" (1/3) ... [2020-07-07 13:01:00,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc21b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:01:00, skipping insertion in model container [2020-07-07 13:01:00,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:59" (2/3) ... [2020-07-07 13:01:00,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc21b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:01:00, skipping insertion in model container [2020-07-07 13:01:00,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:01:00" (3/3) ... [2020-07-07 13:01:00,155 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072a.c [2020-07-07 13:01:00,165 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:01:00,173 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:01:00,188 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:01:00,209 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:01:00,209 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:01:00,210 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:01:00,210 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:01:00,210 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:01:00,210 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:01:00,210 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:01:00,210 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:01:00,227 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-07-07 13:01:00,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-07 13:01:00,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:00,241 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] [2020-07-07 13:01:00,241 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:00,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:00,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1396348261, now seen corresponding path program 1 times [2020-07-07 13:01:00,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:00,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336764284] [2020-07-07 13:01:00,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:00,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:01:00,487 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:00,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336764284] [2020-07-07 13:01:00,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:01:00,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:01:00,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408639274] [2020-07-07 13:01:00,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:01:00,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:01:00,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:01:00,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:01:00,517 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 4 states. [2020-07-07 13:01:00,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:01:00,894 INFO L93 Difference]: Finished difference Result 213 states and 242 transitions. [2020-07-07 13:01:00,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:01:00,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-07-07 13:01:00,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:01:00,908 INFO L225 Difference]: With dead ends: 213 [2020-07-07 13:01:00,909 INFO L226 Difference]: Without dead ends: 107 [2020-07-07 13:01:00,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:01:00,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-07 13:01:00,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-07-07 13:01:00,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-07 13:01:00,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 110 transitions. [2020-07-07 13:01:00,981 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 110 transitions. Word has length 40 [2020-07-07 13:01:00,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:01:00,981 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 110 transitions. [2020-07-07 13:01:00,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:01:00,982 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 110 transitions. [2020-07-07 13:01:00,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-07 13:01:00,985 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:00,985 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, 1, 1, 1, 1, 1] [2020-07-07 13:01:00,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:01:00,986 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:00,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:00,986 INFO L82 PathProgramCache]: Analyzing trace with hash -247930506, now seen corresponding path program 1 times [2020-07-07 13:01:00,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:00,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870075350] [2020-07-07 13:01:00,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:01:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:01:01,338 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:01,339 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:01:01,339 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:01:01,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:01:01,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:01:01 BoogieIcfgContainer [2020-07-07 13:01:01,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:01:01,376 INFO L168 Benchmark]: Toolchain (without parser) took 2404.31 ms. Allocated memory was 139.5 MB in the beginning and 234.4 MB in the end (delta: 94.9 MB). Free memory was 103.9 MB in the beginning and 183.1 MB in the end (delta: -79.3 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:01,377 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:01:01,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 539.31 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 103.7 MB in the beginning and 181.5 MB in the end (delta: -77.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:01,380 INFO L168 Benchmark]: Boogie Preprocessor took 76.75 ms. Allocated memory is still 203.9 MB. Free memory was 181.5 MB in the beginning and 179.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:01,381 INFO L168 Benchmark]: RCFGBuilder took 556.21 ms. Allocated memory is still 203.9 MB. Free memory was 179.5 MB in the beginning and 149.4 MB in the end (delta: 30.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:01,383 INFO L168 Benchmark]: TraceAbstraction took 1225.38 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 148.7 MB in the beginning and 183.1 MB in the end (delta: -34.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 13:01:01,392 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 539.31 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 103.7 MB in the beginning and 181.5 MB in the end (delta: -77.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.75 ms. Allocated memory is still 203.9 MB. Free memory was 181.5 MB in the beginning and 179.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 556.21 ms. Allocated memory is still 203.9 MB. Free memory was 179.5 MB in the beginning and 149.4 MB in the end (delta: 30.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1225.38 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 148.7 MB in the beginning and 183.1 MB in the end (delta: -34.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 89]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 74, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 71. Possible FailurePath: [L84] double x = 1.0 / 0.0; [L85] CALL, EXPR trunc_double(x) [L18] int signbit; [L19] int msw; [L20] unsigned int lsw; [L21] int exponent_less_1023; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L28] signbit = msw & 0x80000000 [L29] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L30] COND FALSE !(exponent_less_1023 < 20) [L47] COND TRUE exponent_less_1023 > 51 [L48] COND TRUE exponent_less_1023 == 1024 [L49] return x + x; [L85] RET, EXPR trunc_double(x) [L85] double res = trunc_double(x); [L88] CALL, EXPR isinf_double(res) [L64] __int32_t hx, lx; [L66] ieee_double_shape_type ew_u; [L67] ew_u.value = (x) [L68] EXPR ew_u.parts.msw [L68] (hx) = ew_u.parts.msw [L69] EXPR ew_u.parts.lsw [L69] (lx) = ew_u.parts.lsw [L71] hx &= 0x7fffffff [L72] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L73] hx = 0x7ff00000 - hx [L74] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L88] RET, EXPR isinf_double(res) [L88] COND TRUE !isinf_double(res) [L89] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 118 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 113 SDtfs, 19 SDslu, 69 SDs, 0 SdLazy, 139 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, 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...