/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_1052c.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 13:13:48,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:13:48,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:13:48,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:13:48,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:13:48,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:13:48,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:13:48,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:13:48,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:13:48,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:13:48,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:13:48,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:13:48,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:13:48,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:13:48,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:13:48,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:13:48,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:13:48,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:13:48,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:13:48,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:13:48,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:13:48,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:13:48,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:13:48,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:13:48,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 13:13:48,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:13:48,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:13:48,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:13:48,939 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 13:13:48,948 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:13:48,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:13:48,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:13:48,949 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:13:48,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:13:48,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:13:48,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:13:48,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:13:48,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:13:48,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:13:48,951 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:13:48,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:13:48,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:13:48,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:13:48,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:13:48,952 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:13:48,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:13:48,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:13:48,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:13:48,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:13:48,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:13:48,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:13:48,953 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:13:49,232 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:13:49,246 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:13:49,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:13:49,250 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:13:49,251 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:13:49,251 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052c.c [2020-07-17 13:13:49,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06bef6ab0/ffab1bdc599a4c69aed852050f6ef1d0/FLAG9c8f5e7bd [2020-07-17 13:13:49,826 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:13:49,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1052c.c [2020-07-17 13:13:49,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06bef6ab0/ffab1bdc599a4c69aed852050f6ef1d0/FLAG9c8f5e7bd [2020-07-17 13:13:50,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06bef6ab0/ffab1bdc599a4c69aed852050f6ef1d0 [2020-07-17 13:13:50,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:13:50,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:13:50,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:13:50,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:13:50,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:13:50,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:13:50" (1/1) ... [2020-07-17 13:13:50,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d1b6256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:50, skipping insertion in model container [2020-07-17 13:13:50,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:13:50" (1/1) ... [2020-07-17 13:13:50,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:13:50,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:13:50,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:13:50,472 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:13:50,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:13:50,609 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:13:50,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:50 WrapperNode [2020-07-17 13:13:50,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:13:50,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:13:50,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:13:50,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:13:50,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:50" (1/1) ... [2020-07-17 13:13:50,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:50" (1/1) ... [2020-07-17 13:13:50,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:50" (1/1) ... [2020-07-17 13:13:50,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:50" (1/1) ... [2020-07-17 13:13:50,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:50" (1/1) ... [2020-07-17 13:13:50,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:50" (1/1) ... [2020-07-17 13:13:50,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:50" (1/1) ... [2020-07-17 13:13:50,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:13:50,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:13:50,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:13:50,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:13:50,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:50" (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 13:13:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:13:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:13:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2020-07-17 13:13:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-07-17 13:13:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:13:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:13:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2020-07-17 13:13:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 13:13:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 13:13:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 13:13:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 13:13:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 13:13:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 13:13:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-07-17 13:13:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:13:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:13:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:13:51,232 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:13:51,233 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-17 13:13:51,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:13:51 BoogieIcfgContainer [2020-07-17 13:13:51,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:13:51,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:13:51,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:13:51,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:13:51,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:13:50" (1/3) ... [2020-07-17 13:13:51,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab1399a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:13:51, skipping insertion in model container [2020-07-17 13:13:51,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:50" (2/3) ... [2020-07-17 13:13:51,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab1399a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:13:51, skipping insertion in model container [2020-07-17 13:13:51,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:13:51" (3/3) ... [2020-07-17 13:13:51,246 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2020-07-17 13:13:51,256 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:13:51,263 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:13:51,275 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:13:51,293 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:13:51,294 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:13:51,294 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:13:51,294 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:13:51,294 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:13:51,295 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:13:51,295 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:13:51,295 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:13:51,311 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-07-17 13:13:51,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-17 13:13:51,322 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:13:51,324 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] [2020-07-17 13:13:51,324 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:13:51,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:13:51,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1852514461, now seen corresponding path program 1 times [2020-07-17 13:13:51,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:13:51,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557757304] [2020-07-17 13:13:51,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:13:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:13:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:13:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:13:51,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:13:51,585 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:13:51,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557757304] [2020-07-17 13:13:51,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:13:51,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 13:13:51,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474062974] [2020-07-17 13:13:51,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 13:13:51,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:13:51,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 13:13:51,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 13:13:51,623 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 4 states. [2020-07-17 13:13:51,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:13:51,982 INFO L93 Difference]: Finished difference Result 213 states and 258 transitions. [2020-07-17 13:13:51,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 13:13:51,984 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-07-17 13:13:51,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:13:51,996 INFO L225 Difference]: With dead ends: 213 [2020-07-17 13:13:51,997 INFO L226 Difference]: Without dead ends: 107 [2020-07-17 13:13:52,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:13:52,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-17 13:13:52,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-07-17 13:13:52,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-17 13:13:52,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2020-07-17 13:13:52,056 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 32 [2020-07-17 13:13:52,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:13:52,057 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2020-07-17 13:13:52,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 13:13:52,057 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2020-07-17 13:13:52,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-17 13:13:52,059 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:13:52,060 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] [2020-07-17 13:13:52,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:13:52,060 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:13:52,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:13:52,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1065550425, now seen corresponding path program 1 times [2020-07-17 13:13:52,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:13:52,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67948484] [2020-07-17 13:13:52,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:13:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:13:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:13:52,329 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:13:52,330 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 13:13:52,330 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 13:13:52,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:13:52,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 01:13:52 BoogieIcfgContainer [2020-07-17 13:13:52,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 13:13:52,363 INFO L168 Benchmark]: Toolchain (without parser) took 2185.64 ms. Allocated memory was 138.4 MB in the beginning and 235.9 MB in the end (delta: 97.5 MB). Free memory was 101.6 MB in the beginning and 198.3 MB in the end (delta: -96.7 MB). Peak memory consumption was 831.2 kB. Max. memory is 7.1 GB. [2020-07-17 13:13:52,364 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 138.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 13:13:52,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.14 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 180.7 MB in the end (delta: -79.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-07-17 13:13:52,366 INFO L168 Benchmark]: Boogie Preprocessor took 48.28 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 178.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-17 13:13:52,367 INFO L168 Benchmark]: RCFGBuilder took 578.80 ms. Allocated memory is still 202.4 MB. Free memory was 178.3 MB in the beginning and 149.5 MB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2020-07-17 13:13:52,368 INFO L168 Benchmark]: TraceAbstraction took 1121.42 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 148.8 MB in the beginning and 198.3 MB in the end (delta: -49.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 13:13:52,372 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 138.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 429.14 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 180.7 MB in the end (delta: -79.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.28 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 178.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 578.80 ms. Allocated memory is still 202.4 MB. Free memory was 178.3 MB in the beginning and 149.5 MB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1121.42 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 148.8 MB in the beginning and 198.3 MB in the end (delta: -49.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 98, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 102. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; [L98] double x = -0.0; [L99] CALL, EXPR floor_double(x) [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L26] COND FALSE !(j0 < 20) [L47] COND TRUE j0 > 51 [L48] COND TRUE j0 == 0x400 [L49] return x + x; [L99] RET, EXPR floor_double(x) [L99] double res = floor_double(x); [L102] EXPR res == -0.0 && __signbit_double(res) == 1 [L102] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L103] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 126 SDtfs, 19 SDslu, 97 SDs, 0 SdLazy, 137 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred 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...