/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:24:20,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:24:20,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:24:20,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:24:20,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:24:20,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:24:20,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:24:20,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:24:20,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:24:20,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:24:20,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:24:20,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:24:20,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:24:20,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:24:20,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:24:20,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:24:20,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:24:20,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:24:20,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:24:20,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:24:20,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:24:20,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:24:20,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:24:20,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:24:20,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 00:24:20,952 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:24:20,977 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:24:20,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:24:20,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:24:20,981 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:24:20,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:24:20,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:24:20,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:24:20,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:24:20,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:24:20,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:24:20,983 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:24:20,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:24:20,984 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:24:20,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:24:20,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:24:20,985 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:24:20,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:24:20,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:24:20,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:24:20,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:24:20,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:24:20,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:24:20,986 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:24:21,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:24:21,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:24:21,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:24:21,401 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:24:21,402 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:24:21,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-11-07 00:24:21,488 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de20dda91/5a862cb5215e43c7b2f1139829ac4722/FLAGadccdea74 [2020-11-07 00:24:22,207 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:24:22,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-11-07 00:24:22,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de20dda91/5a862cb5215e43c7b2f1139829ac4722/FLAGadccdea74 [2020-11-07 00:24:22,566 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de20dda91/5a862cb5215e43c7b2f1139829ac4722 [2020-11-07 00:24:22,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:24:22,580 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:24:22,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:22,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:24:22,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:24:22,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:22" (1/1) ... [2020-11-07 00:24:22,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b6282e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:22, skipping insertion in model container [2020-11-07 00:24:22,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:22" (1/1) ... [2020-11-07 00:24:22,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:24:22,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:24:22,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:22,954 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:24:23,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:23,099 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:24:23,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:23 WrapperNode [2020-11-07 00:24:23,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:23,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:24:23,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:24:23,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:24:23,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:23" (1/1) ... [2020-11-07 00:24:23,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:23" (1/1) ... [2020-11-07 00:24:23,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:23" (1/1) ... [2020-11-07 00:24:23,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:23" (1/1) ... [2020-11-07 00:24:23,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:23" (1/1) ... [2020-11-07 00:24:23,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:23" (1/1) ... [2020-11-07 00:24:23,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:23" (1/1) ... [2020-11-07 00:24:23,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:24:23,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:24:23,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:24:23,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:24:23,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:23" (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 [2020-11-07 00:24:23,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:24:23,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:24:23,270 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:24:23,270 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-11-07 00:24:23,270 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-11-07 00:24:23,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-11-07 00:24:23,271 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:24:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:24:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:24:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:24:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:24:23,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-11-07 00:24:23,272 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-11-07 00:24:23,272 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-11-07 00:24:23,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 00:24:23,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:24:23,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:24:23,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 00:24:23,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:24:23,273 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-11-07 00:24:23,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:24:23,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:24:23,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:24:23,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-07 00:24:23,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:24:24,259 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:24:24,260 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-07 00:24:24,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:24 BoogieIcfgContainer [2020-11-07 00:24:24,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:24:24,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:24:24,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:24:24,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:24:24,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:24:22" (1/3) ... [2020-11-07 00:24:24,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4523af9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:24, skipping insertion in model container [2020-11-07 00:24:24,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:23" (2/3) ... [2020-11-07 00:24:24,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4523af9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:24, skipping insertion in model container [2020-11-07 00:24:24,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:24" (3/3) ... [2020-11-07 00:24:24,271 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2020-11-07 00:24:24,287 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:24:24,291 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:24:24,304 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:24:24,328 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:24:24,328 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:24:24,329 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:24:24,329 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:24:24,329 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:24:24,329 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:24:24,329 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:24:24,329 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:24:24,351 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states. [2020-11-07 00:24:24,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-07 00:24:24,364 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:24,365 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] [2020-11-07 00:24:24,366 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:24,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:24,372 INFO L82 PathProgramCache]: Analyzing trace with hash 874117461, now seen corresponding path program 1 times [2020-11-07 00:24:24,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:24,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72018333] [2020-11-07 00:24:24,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:24,453 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:24,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:24,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:24:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:24:24,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72018333] [2020-11-07 00:24:24,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:24,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:24:24,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584427891] [2020-11-07 00:24:24,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:24:24,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:24,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:24:24,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:24:24,785 INFO L87 Difference]: Start difference. First operand 229 states. Second operand 4 states. [2020-11-07 00:24:26,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:26,055 INFO L93 Difference]: Finished difference Result 424 states and 515 transitions. [2020-11-07 00:24:26,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 00:24:26,058 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-11-07 00:24:26,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:26,072 INFO L225 Difference]: With dead ends: 424 [2020-11-07 00:24:26,072 INFO L226 Difference]: Without dead ends: 219 [2020-11-07 00:24:26,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:24:26,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-11-07 00:24:26,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2020-11-07 00:24:26,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-11-07 00:24:26,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 246 transitions. [2020-11-07 00:24:26,152 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 246 transitions. Word has length 52 [2020-11-07 00:24:26,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:26,153 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 246 transitions. [2020-11-07 00:24:26,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:24:26,153 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 246 transitions. [2020-11-07 00:24:26,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-11-07 00:24:26,157 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:26,158 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:24:26,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:24:26,158 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:26,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:26,159 INFO L82 PathProgramCache]: Analyzing trace with hash 595290325, now seen corresponding path program 1 times [2020-11-07 00:24:26,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:26,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764358430] [2020-11-07 00:24:26,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:26,164 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:26,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:26,389 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:26,461 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:24:26,461 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:24:26,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:24:26,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:24:26 BoogieIcfgContainer [2020-11-07 00:24:26,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:24:26,486 INFO L168 Benchmark]: Toolchain (without parser) took 3911.43 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 137.9 MB in the beginning and 133.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 38.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:26,487 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 162.5 MB. Free memory is still 137.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:24:26,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.60 ms. Allocated memory is still 162.5 MB. Free memory was 137.3 MB in the beginning and 124.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:26,489 INFO L168 Benchmark]: Boogie Preprocessor took 74.39 ms. Allocated memory is still 162.5 MB. Free memory was 124.0 MB in the beginning and 121.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:26,490 INFO L168 Benchmark]: RCFGBuilder took 1084.98 ms. Allocated memory is still 162.5 MB. Free memory was 121.5 MB in the beginning and 141.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 50.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:26,491 INFO L168 Benchmark]: TraceAbstraction took 2219.67 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 141.4 MB in the beginning and 133.1 MB in the end (delta: 8.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:26,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 162.5 MB. Free memory is still 137.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 514.60 ms. Allocated memory is still 162.5 MB. Free memory was 137.3 MB in the beginning and 124.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 74.39 ms. Allocated memory is still 162.5 MB. Free memory was 124.0 MB in the beginning and 121.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1084.98 ms. Allocated memory is still 162.5 MB. Free memory was 121.5 MB in the beginning and 141.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 50.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2219.67 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 141.4 MB in the beginning and 133.1 MB in the end (delta: 8.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 192, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L184] double x = 0.0; [L185] double y = __VERIFIER_nondet_double(); [L187] COND TRUE y < 0.0 || y > 0.0 [L189] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); [L189] RET, EXPR fmod_double(x, y) [L189] double res = fmod_double(x, y); [L192] EXPR res == 0.0 && __signbit_double(res) == 0 [L192] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L193] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1130a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 233 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 251 SDtfs, 47 SDslu, 183 SDs, 0 SdLazy, 275 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred 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...