/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/float_req_bl_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:02:12,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:02:12,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:02:12,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:02:12,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:02:12,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:02:12,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:02:12,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:02:12,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:02:12,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:02:12,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:02:12,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:02:12,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:02:12,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:02:12,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:02:12,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:02:12,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:02:12,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:02:12,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:02:12,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:02:12,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:02:12,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:02:12,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:02:12,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:02:12,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:02:12,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:02:12,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:02:12,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:02:12,677 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 13:02:12,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:02:12,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:02:12,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:02:12,688 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:02:12,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:02:12,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:02:12,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:02:12,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:02:12,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:02:12,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:02:12,689 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:02:12,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:02:12,689 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:02:12,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:02:12,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:02:12,690 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:02:12,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:02:12,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:02:12,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:02:12,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:02:12,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:02:12,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:02:12,691 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:02:12,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:02:13,013 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:02:13,017 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:02:13,019 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:02:13,019 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:02:13,020 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1130a.c [2020-07-07 13:02:13,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffc096c90/2fef5a31aeaf4b5280591a20e5e67c98/FLAG8c65d56f5 [2020-07-07 13:02:13,531 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:02:13,532 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1130a.c [2020-07-07 13:02:13,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffc096c90/2fef5a31aeaf4b5280591a20e5e67c98/FLAG8c65d56f5 [2020-07-07 13:02:13,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffc096c90/2fef5a31aeaf4b5280591a20e5e67c98 [2020-07-07 13:02:13,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:02:13,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:02:13,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:02:13,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:02:13,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:02:13,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:02:13" (1/1) ... [2020-07-07 13:02:13,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2173f6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:13, skipping insertion in model container [2020-07-07 13:02:13,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:02:13" (1/1) ... [2020-07-07 13:02:13,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:02:14,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:02:14,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:02:14,239 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:02:14,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:02:14,386 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:02:14,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:14 WrapperNode [2020-07-07 13:02:14,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:02:14,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:02:14,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:02:14,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:02:14,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:14" (1/1) ... [2020-07-07 13:02:14,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:14" (1/1) ... [2020-07-07 13:02:14,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:14" (1/1) ... [2020-07-07 13:02:14,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:14" (1/1) ... [2020-07-07 13:02:14,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:14" (1/1) ... [2020-07-07 13:02:14,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:14" (1/1) ... [2020-07-07 13:02:14,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:14" (1/1) ... [2020-07-07 13:02:14,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:02:14,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:02:14,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:02:14,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:02:14,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:14" (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 13:02:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:02:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:02:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2020-07-07 13:02:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-07 13:02:14,513 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:02:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:02:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-07 13:02:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2020-07-07 13:02:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:02:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 13:02:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:02:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:02:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 13:02:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:02:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-07 13:02:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:02:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:02:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-07 13:02:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:02:15,086 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:02:15,087 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-07 13:02:15,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:02:15 BoogieIcfgContainer [2020-07-07 13:02:15,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:02:15,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:02:15,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:02:15,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:02:15,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:02:13" (1/3) ... [2020-07-07 13:02:15,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d59df75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:02:15, skipping insertion in model container [2020-07-07 13:02:15,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:14" (2/3) ... [2020-07-07 13:02:15,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d59df75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:02:15, skipping insertion in model container [2020-07-07 13:02:15,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:02:15" (3/3) ... [2020-07-07 13:02:15,108 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130a.c [2020-07-07 13:02:15,118 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:02:15,126 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:02:15,136 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:02:15,154 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:02:15,154 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:02:15,154 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:02:15,154 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:02:15,155 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:02:15,155 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:02:15,155 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:02:15,155 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:02:15,173 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-07-07 13:02:15,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-07 13:02:15,186 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:02:15,187 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] [2020-07-07 13:02:15,187 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:02:15,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:02:15,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1988505082, now seen corresponding path program 1 times [2020-07-07 13:02:15,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:02:15,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54905006] [2020-07-07 13:02:15,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:02:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:15,452 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 13:02:15,453 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:02:15,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54905006] [2020-07-07 13:02:15,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:02:15,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:02:15,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670743583] [2020-07-07 13:02:15,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:02:15,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:02:15,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:02:15,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:02:15,483 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 4 states. [2020-07-07 13:02:15,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:02:15,921 INFO L93 Difference]: Finished difference Result 308 states and 372 transitions. [2020-07-07 13:02:15,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:02:15,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-07-07 13:02:15,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:02:15,935 INFO L225 Difference]: With dead ends: 308 [2020-07-07 13:02:15,935 INFO L226 Difference]: Without dead ends: 158 [2020-07-07 13:02:15,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 13:02:15,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-07-07 13:02:15,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-07-07 13:02:15,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-07-07 13:02:16,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 174 transitions. [2020-07-07 13:02:16,003 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 174 transitions. Word has length 43 [2020-07-07 13:02:16,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:02:16,005 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 174 transitions. [2020-07-07 13:02:16,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:02:16,005 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 174 transitions. [2020-07-07 13:02:16,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-07 13:02:16,010 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:02:16,010 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] [2020-07-07 13:02:16,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:02:16,011 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:02:16,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:02:16,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1298136515, now seen corresponding path program 1 times [2020-07-07 13:02:16,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:02:16,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81403444] [2020-07-07 13:02:16,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:02:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:02:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:02:16,230 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:02:16,230 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:02:16,230 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:02:16,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:02:16,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:02:16 BoogieIcfgContainer [2020-07-07 13:02:16,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:02:16,257 INFO L168 Benchmark]: Toolchain (without parser) took 2292.36 ms. Allocated memory was 146.3 MB in the beginning and 235.4 MB in the end (delta: 89.1 MB). Free memory was 103.9 MB in the beginning and 163.5 MB in the end (delta: -59.6 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2020-07-07 13:02:16,258 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-07 13:02:16,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.62 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 103.7 MB in the beginning and 178.6 MB in the end (delta: -74.9 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2020-07-07 13:02:16,260 INFO L168 Benchmark]: Boogie Preprocessor took 53.83 ms. Allocated memory is still 202.4 MB. Free memory was 178.6 MB in the beginning and 176.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-07-07 13:02:16,261 INFO L168 Benchmark]: RCFGBuilder took 656.26 ms. Allocated memory is still 202.4 MB. Free memory was 176.6 MB in the beginning and 139.3 MB in the end (delta: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. [2020-07-07 13:02:16,262 INFO L168 Benchmark]: TraceAbstraction took 1155.47 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 138.7 MB in the beginning and 163.5 MB in the end (delta: -24.8 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2020-07-07 13:02:16,266 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 421.62 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 103.7 MB in the beginning and 178.6 MB in the end (delta: -74.9 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.83 ms. Allocated memory is still 202.4 MB. Free memory was 178.6 MB in the beginning and 176.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 656.26 ms. Allocated memory is still 202.4 MB. Free memory was 176.6 MB in the beginning and 139.3 MB in the end (delta: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1155.47 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 138.7 MB in the beginning and 163.5 MB in the end (delta: -24.8 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 135]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 134, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 32, overapproximation of bitwiseXor at line 31, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L126] float x = 0.0f; [L127] float y = __VERIFIER_nondet_float(); [L129] COND TRUE (y < 0.0f || y > 0.0f) [L131] CALL, EXPR fmod_float(x, y) [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); [L131] RET, EXPR fmod_float(x, y) [L131] float res = fmod_float(x, y); [L134] EXPR res == 0.0f && __signbit_float(res) == 0 [L134] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L135] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 166 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 179 SDtfs, 39 SDslu, 129 SDs, 0 SdLazy, 195 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred 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...