/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_1092d.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:24:19,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:24:19,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:24:19,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:24:19,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:24:19,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:24:19,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:24:19,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:24:19,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:24:19,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:24:19,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:24:19,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:24:19,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:24:19,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:24:19,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:24:19,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:24:19,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 00:24:19,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:24:19,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:24:19,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:24:19,358 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 00:24:19,383 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:24:19,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:24:19,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:24:19,389 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:24:19,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:24:19,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:24:19,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:24:19,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:24:19,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:24:19,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:24:19,392 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:24:19,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:24:19,392 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:24:19,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:24:19,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:24:19,394 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:24:19,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:24:19,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:24:19,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:24:19,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:24:19,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:24:19,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:24:19,396 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:24:19,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:24:19,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:24:19,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:24:19,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:24:19,914 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:24:19,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c [2020-11-07 00:24:19,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a6e4ec3f/52bc3b4e7a294217bbd34f1be0b89f7a/FLAG2aeeb4c47 [2020-11-07 00:24:20,730 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:24:20,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c [2020-11-07 00:24:20,740 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a6e4ec3f/52bc3b4e7a294217bbd34f1be0b89f7a/FLAG2aeeb4c47 [2020-11-07 00:24:21,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a6e4ec3f/52bc3b4e7a294217bbd34f1be0b89f7a [2020-11-07 00:24:21,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:24:21,083 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:24:21,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:21,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:24:21,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:24:21,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:21" (1/1) ... [2020-11-07 00:24:21,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1661cff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:21, skipping insertion in model container [2020-11-07 00:24:21,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:21" (1/1) ... [2020-11-07 00:24:21,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:24:21,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:24:21,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:21,351 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:24:21,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:21,449 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:24:21,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:21 WrapperNode [2020-11-07 00:24:21,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:21,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:24:21,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:24:21,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:24:21,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:21" (1/1) ... [2020-11-07 00:24:21,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:21" (1/1) ... [2020-11-07 00:24:21,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:21" (1/1) ... [2020-11-07 00:24:21,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:21" (1/1) ... [2020-11-07 00:24:21,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:21" (1/1) ... [2020-11-07 00:24:21,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:21" (1/1) ... [2020-11-07 00:24:21,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:21" (1/1) ... [2020-11-07 00:24:21,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:24:21,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:24:21,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:24:21,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:24:21,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:21" (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 00:24:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:24:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:24:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:24:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2020-11-07 00:24:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-11-07 00:24:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:24:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:24:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:24:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:24:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:24:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2020-11-07 00:24:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 00:24:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:24:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:24:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:24:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 00:24:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-11-07 00:24:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:24:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:24:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:24:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:24:22,365 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:24:22,365 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-07 00:24:22,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:22 BoogieIcfgContainer [2020-11-07 00:24:22,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:24:22,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:24:22,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:24:22,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:24:22,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:24:21" (1/3) ... [2020-11-07 00:24:22,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5194f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:22, skipping insertion in model container [2020-11-07 00:24:22,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:21" (2/3) ... [2020-11-07 00:24:22,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5194f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:22, skipping insertion in model container [2020-11-07 00:24:22,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:22" (3/3) ... [2020-11-07 00:24:22,377 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d.c [2020-11-07 00:24:22,393 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:24:22,397 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:24:22,408 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:24:22,434 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:24:22,434 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:24:22,434 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:24:22,434 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:24:22,434 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:24:22,435 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:24:22,435 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:24:22,435 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:24:22,454 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2020-11-07 00:24:22,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-07 00:24:22,467 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:22,468 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] [2020-11-07 00:24:22,468 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:22,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:22,475 INFO L82 PathProgramCache]: Analyzing trace with hash -2118996704, now seen corresponding path program 1 times [2020-11-07 00:24:22,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:22,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900640147] [2020-11-07 00:24:22,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:22,566 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:22,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:22,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 00:24:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:22,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 00:24:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:22,826 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 00:24:22,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900640147] [2020-11-07 00:24:22,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:22,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:24:22,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809756817] [2020-11-07 00:24:22,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:24:22,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:22,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:24:22,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:24:22,863 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 4 states. [2020-11-07 00:24:23,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:23,515 INFO L93 Difference]: Finished difference Result 230 states and 274 transitions. [2020-11-07 00:24:23,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 00:24:23,517 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-11-07 00:24:23,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:23,528 INFO L225 Difference]: With dead ends: 230 [2020-11-07 00:24:23,528 INFO L226 Difference]: Without dead ends: 118 [2020-11-07 00:24:23,533 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 [2020-11-07 00:24:23,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-11-07 00:24:23,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2020-11-07 00:24:23,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-11-07 00:24:23,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 132 transitions. [2020-11-07 00:24:23,594 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 132 transitions. Word has length 47 [2020-11-07 00:24:23,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:23,595 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 132 transitions. [2020-11-07 00:24:23,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:24:23,595 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 132 transitions. [2020-11-07 00:24:23,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-11-07 00:24:23,599 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:23,599 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] [2020-11-07 00:24:23,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:24:23,600 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:23,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:23,601 INFO L82 PathProgramCache]: Analyzing trace with hash 464228340, now seen corresponding path program 1 times [2020-11-07 00:24:23,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:23,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063533788] [2020-11-07 00:24:23,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:23,605 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:23,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:23,875 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:23,922 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:24:23,922 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:24:23,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:24:23,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:24:23 BoogieIcfgContainer [2020-11-07 00:24:23,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:24:23,951 INFO L168 Benchmark]: Toolchain (without parser) took 2870.09 ms. Allocated memory is still 151.0 MB. Free memory was 127.3 MB in the beginning and 93.2 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:23,952 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:24:23,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.18 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 115.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:23,957 INFO L168 Benchmark]: Boogie Preprocessor took 107.45 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 113.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:23,958 INFO L168 Benchmark]: RCFGBuilder took 807.94 ms. Allocated memory is still 151.0 MB. Free memory was 113.2 MB in the beginning and 117.3 MB in the end (delta: -4.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:23,958 INFO L168 Benchmark]: TraceAbstraction took 1574.83 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 93.7 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:23,968 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 361.18 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 115.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 107.45 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 113.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 807.94 ms. Allocated memory is still 151.0 MB. Free memory was 113.2 MB in the beginning and 117.3 MB in the end (delta: -4.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1574.83 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 93.7 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 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 94, overapproximation of someBinaryArithmeticDOUBLEoperation at line 52, overapproximation of bitwiseAnd at line 91. Possible FailurePath: [L16] static const double huge_ceil = 1.0e300; [L105] double x = -1.0 / 0.0; [L106] CALL, EXPR ceil_double(x) [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L28] COND FALSE !(j0 < 20) [L50] COND TRUE j0 > 51 [L51] COND TRUE j0 == 0x400 [L52] return x + x; [L106] RET, EXPR ceil_double(x) [L106] double res = ceil_double(x); [L109] CALL, EXPR isinf_double(res) [L84] __int32_t hx, lx; [L86] ieee_double_shape_type ew_u; [L87] ew_u.value = (x) [L88] EXPR ew_u.parts.msw [L88] (hx) = ew_u.parts.msw [L89] EXPR ew_u.parts.lsw [L89] (lx) = ew_u.parts.lsw [L91] hx &= 0x7fffffff [L92] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L93] hx = 0x7ff00000 - hx [L94] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L109] RET, EXPR isinf_double(res) [L109] COND TRUE !isinf_double(res) [L110] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1092d.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 127 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 135 SDtfs, 23 SDslu, 96 SDs, 0 SdLazy, 150 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=127occurred 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...