/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_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:24:57,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:24:57,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:24:57,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:24:57,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:24:57,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:24:57,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:24:57,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:24:57,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:24:57,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:24:57,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:24:57,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:24:57,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:24:57,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:24:57,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:24:57,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:24:57,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:24:57,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:24:57,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:24:57,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:24:57,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:24:57,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:24:57,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:24:57,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:24:57,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 20:24:57,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:24:57,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:24:57,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:24:57,601 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:24:57,621 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:24:57,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:24:57,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:24:57,627 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:24:57,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:24:57,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:24:57,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:24:57,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:24:57,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:24:57,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:24:57,629 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:24:57,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:24:57,630 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:24:57,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:24:57,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:24:57,631 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:24:57,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:24:57,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:24:57,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:24:57,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:24:57,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:24:57,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:24:57,632 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:24:58,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:24:58,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:24:58,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:24:58,118 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:24:58,119 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:24:58,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-10-23 20:24:58,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab9c56fe8/25e87fb00825496aaccfca253ec7f02a/FLAGa8ef3b4ac [2020-10-23 20:24:58,962 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:24:58,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-10-23 20:24:58,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab9c56fe8/25e87fb00825496aaccfca253ec7f02a/FLAGa8ef3b4ac [2020-10-23 20:24:59,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab9c56fe8/25e87fb00825496aaccfca253ec7f02a [2020-10-23 20:24:59,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:24:59,271 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:24:59,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:24:59,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:24:59,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:24:59,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:24:59" (1/1) ... [2020-10-23 20:24:59,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37159f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:59, skipping insertion in model container [2020-10-23 20:24:59,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:24:59" (1/1) ... [2020-10-23 20:24:59,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:24:59,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:24:59,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:24:59,564 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:24:59,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:24:59,636 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:24:59,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:59 WrapperNode [2020-10-23 20:24:59,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:24:59,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:24:59,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:24:59,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:24:59,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:59" (1/1) ... [2020-10-23 20:24:59,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:59" (1/1) ... [2020-10-23 20:24:59,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:59" (1/1) ... [2020-10-23 20:24:59,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:59" (1/1) ... [2020-10-23 20:24:59,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:59" (1/1) ... [2020-10-23 20:24:59,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:59" (1/1) ... [2020-10-23 20:24:59,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:59" (1/1) ... [2020-10-23 20:24:59,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:24:59,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:24:59,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:24:59,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:24:59,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:24:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:24:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:24:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:24:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-23 20:24:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-23 20:24:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-23 20:24:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:24:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:24:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:24:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:24:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:24:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-23 20:24:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-23 20:24:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-23 20:24:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-23 20:24:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:24:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:24:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-23 20:24:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:24:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-23 20:24:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:24:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:24:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:24:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-23 20:24:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:25:00,877 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:25:00,877 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-23 20:25:00,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:25:00 BoogieIcfgContainer [2020-10-23 20:25:00,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:25:00,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:25:00,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:25:00,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:25:00,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:24:59" (1/3) ... [2020-10-23 20:25:00,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34808076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:25:00, skipping insertion in model container [2020-10-23 20:25:00,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:59" (2/3) ... [2020-10-23 20:25:00,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34808076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:25:00, skipping insertion in model container [2020-10-23 20:25:00,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:25:00" (3/3) ... [2020-10-23 20:25:00,889 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-10-23 20:25:00,902 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:25:00,907 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:25:00,918 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:25:00,942 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:25:00,942 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:25:00,942 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:25:00,943 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:25:00,943 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:25:00,943 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:25:00,943 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:25:00,943 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:25:00,964 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-10-23 20:25:00,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-23 20:25:00,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:00,978 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] [2020-10-23 20:25:00,979 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:00,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:00,986 INFO L82 PathProgramCache]: Analyzing trace with hash 738853164, now seen corresponding path program 1 times [2020-10-23 20:25:00,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:00,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664973105] [2020-10-23 20:25:00,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:01,069 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:01,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:25:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:01,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:25:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:01,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:25:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:01,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:25:01,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664973105] [2020-10-23 20:25:01,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:25:01,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:25:01,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956982097] [2020-10-23 20:25:01,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:25:01,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:25:01,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:25:01,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:25:01,467 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 4 states. [2020-10-23 20:25:02,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:25:02,096 INFO L93 Difference]: Finished difference Result 423 states and 513 transitions. [2020-10-23 20:25:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 20:25:02,098 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-10-23 20:25:02,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:25:02,113 INFO L225 Difference]: With dead ends: 423 [2020-10-23 20:25:02,113 INFO L226 Difference]: Without dead ends: 215 [2020-10-23 20:25:02,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:25:02,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-10-23 20:25:02,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2020-10-23 20:25:02,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-10-23 20:25:02,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 241 transitions. [2020-10-23 20:25:02,201 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 241 transitions. Word has length 57 [2020-10-23 20:25:02,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:25:02,202 INFO L481 AbstractCegarLoop]: Abstraction has 215 states and 241 transitions. [2020-10-23 20:25:02,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:25:02,203 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 241 transitions. [2020-10-23 20:25:02,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-23 20:25:02,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:02,213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:25:02,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:25:02,214 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:02,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:02,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1422621394, now seen corresponding path program 1 times [2020-10-23 20:25:02,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:02,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081537546] [2020-10-23 20:25:02,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:02,228 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:25:02,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:25:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:25:02,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:25:02,591 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:25:02,591 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:25:02,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:25:02,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:25:02 BoogieIcfgContainer [2020-10-23 20:25:02,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:25:02,618 INFO L168 Benchmark]: Toolchain (without parser) took 3351.46 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 131.2 MB in the beginning and 156.2 MB in the end (delta: -25.1 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:02,619 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 155.2 MB. Free memory was 129.8 MB in the beginning and 129.7 MB in the end (delta: 116.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:25:02,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.31 ms. Allocated memory is still 155.2 MB. Free memory was 130.6 MB in the beginning and 117.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:02,621 INFO L168 Benchmark]: Boogie Preprocessor took 65.64 ms. Allocated memory is still 155.2 MB. Free memory was 117.4 MB in the beginning and 114.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:02,622 INFO L168 Benchmark]: RCFGBuilder took 1174.52 ms. Allocated memory is still 155.2 MB. Free memory was 114.9 MB in the beginning and 100.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:02,623 INFO L168 Benchmark]: TraceAbstraction took 1734.06 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 99.9 MB in the beginning and 156.2 MB in the end (delta: -56.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:25:02,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 155.2 MB. Free memory was 129.8 MB in the beginning and 129.7 MB in the end (delta: 116.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 361.31 ms. Allocated memory is still 155.2 MB. Free memory was 130.6 MB in the beginning and 117.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 65.64 ms. Allocated memory is still 155.2 MB. Free memory was 117.4 MB in the beginning and 114.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1174.52 ms. Allocated memory is still 155.2 MB. Free memory was 114.9 MB in the beginning and 100.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1734.06 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 99.9 MB in the beginning and 156.2 MB in the end (delta: -56.3 MB). There was no memory consumed. 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 someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryDOUBLEComparisonOperation at line 190, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L182] double y = 1.0 / 0.0; [L183] double x = __VERIFIER_nondet_double(); [L185] CALL isfinite_double(x) [L166] __int32_t hx; [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L185] RET isfinite_double(x) [L185] COND TRUE isfinite_double(x) [L187] 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); [L187] RET, EXPR fmod_double(x, y) [L187] double res = fmod_double(x, y); [L190] COND TRUE res != x [L191] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1131a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 245 SDtfs, 39 SDslu, 181 SDs, 0 SdLazy, 269 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224occurred 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...