/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_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:24:23,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:24:23,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:24:23,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:24:23,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:24:23,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:24:23,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:24:23,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:24:23,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:24:23,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:24:23,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:24:23,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:24:23,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:24:23,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:24:23,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:24:23,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:24:23,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 00:24:23,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:24:23,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:24:23,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:24:23,652 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 00:24:23,667 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:24:23,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:24:23,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:24:23,672 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:24:23,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:24:23,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:24:23,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:24:23,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:24:23,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:24:23,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:24:23,674 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:24:23,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:24:23,675 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:24:23,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:24:23,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:24:23,676 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:24:23,676 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:24:23,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:24:23,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:24:23,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:24:23,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:24:23,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:24:23,677 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:24:24,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:24:24,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:24:24,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:24:24,171 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:24:24,172 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:24:24,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-11-07 00:24:24,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdec7f9b8/552d61885424434899b668b1c4e302d4/FLAG78226ba86 [2020-11-07 00:24:24,914 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:24:24,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-11-07 00:24:24,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdec7f9b8/552d61885424434899b668b1c4e302d4/FLAG78226ba86 [2020-11-07 00:24:25,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdec7f9b8/552d61885424434899b668b1c4e302d4 [2020-11-07 00:24:25,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:24:25,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:24:25,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:25,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:24:25,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:24:25,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:25" (1/1) ... [2020-11-07 00:24:25,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29fb1f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:25, skipping insertion in model container [2020-11-07 00:24:25,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:25" (1/1) ... [2020-11-07 00:24:25,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:24:25,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:24:25,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:25,580 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:24:25,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:25,665 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:24:25,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:25 WrapperNode [2020-11-07 00:24:25,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:25,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:24:25,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:24:25,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:24:25,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:25" (1/1) ... [2020-11-07 00:24:25,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:25" (1/1) ... [2020-11-07 00:24:25,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:25" (1/1) ... [2020-11-07 00:24:25,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:25" (1/1) ... [2020-11-07 00:24:25,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:25" (1/1) ... [2020-11-07 00:24:25,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:25" (1/1) ... [2020-11-07 00:24:25,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:25" (1/1) ... [2020-11-07 00:24:25,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:24:25,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:24:25,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:24:25,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:24:25,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:25" (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 00:24:25,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:24:25,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:24:25,823 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:24:25,823 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-11-07 00:24:25,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-11-07 00:24:25,824 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:24:25,824 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:24:25,824 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:24:25,824 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:24:25,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:24:25,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-11-07 00:24:25,825 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-11-07 00:24:25,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 00:24:25,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:24:25,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:24:25,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 00:24:25,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:24:25,826 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-11-07 00:24:25,826 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:24:25,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:24:25,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:24:25,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-07 00:24:25,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:24:26,855 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:24:26,856 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-07 00:24:26,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:26 BoogieIcfgContainer [2020-11-07 00:24:26,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:24:26,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:24:26,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:24:26,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:24:26,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:24:25" (1/3) ... [2020-11-07 00:24:26,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aeacd47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:26, skipping insertion in model container [2020-11-07 00:24:26,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:25" (2/3) ... [2020-11-07 00:24:26,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aeacd47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:26, skipping insertion in model container [2020-11-07 00:24:26,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:26" (3/3) ... [2020-11-07 00:24:26,866 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2020-11-07 00:24:26,881 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:24:26,885 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:24:26,897 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:24:26,920 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:24:26,920 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:24:26,920 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:24:26,920 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:24:26,920 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:24:26,920 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:24:26,921 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:24:26,921 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:24:26,942 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-11-07 00:24:26,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-07 00:24:26,954 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:26,955 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] [2020-11-07 00:24:26,955 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:26,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:26,962 INFO L82 PathProgramCache]: Analyzing trace with hash 502418348, now seen corresponding path program 1 times [2020-11-07 00:24:26,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:26,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181713378] [2020-11-07 00:24:26,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:27,053 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 00:24:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:24:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,396 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 00:24:27,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181713378] [2020-11-07 00:24:27,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:27,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:24:27,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161729884] [2020-11-07 00:24:27,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:24:27,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:27,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:24:27,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:24:27,426 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 4 states. [2020-11-07 00:24:28,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:28,081 INFO L93 Difference]: Finished difference Result 423 states and 513 transitions. [2020-11-07 00:24:28,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 00:24:28,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-11-07 00:24:28,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:28,096 INFO L225 Difference]: With dead ends: 423 [2020-11-07 00:24:28,097 INFO L226 Difference]: Without dead ends: 215 [2020-11-07 00:24:28,103 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 00:24:28,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-11-07 00:24:28,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2020-11-07 00:24:28,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-11-07 00:24:28,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 241 transitions. [2020-11-07 00:24:28,177 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 241 transitions. Word has length 57 [2020-11-07 00:24:28,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:28,178 INFO L481 AbstractCegarLoop]: Abstraction has 215 states and 241 transitions. [2020-11-07 00:24:28,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:24:28,178 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 241 transitions. [2020-11-07 00:24:28,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-11-07 00:24:28,182 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:28,182 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] [2020-11-07 00:24:28,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:24:28,183 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:28,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:28,184 INFO L82 PathProgramCache]: Analyzing trace with hash -201700463, now seen corresponding path program 1 times [2020-11-07 00:24:28,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:28,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156159107] [2020-11-07 00:24:28,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:28,188 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:28,334 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:28,420 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:28,485 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:24:28,485 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:24:28,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:24:28,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:24:28 BoogieIcfgContainer [2020-11-07 00:24:28,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:24:28,524 INFO L168 Benchmark]: Toolchain (without parser) took 3253.27 ms. Allocated memory is still 158.3 MB. Free memory was 134.2 MB in the beginning and 94.3 MB in the end (delta: 40.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:28,525 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory was 101.6 MB in the beginning and 101.4 MB in the end (delta: 126.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:24:28,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.61 ms. Allocated memory is still 158.3 MB. Free memory was 133.6 MB in the beginning and 120.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:28,530 INFO L168 Benchmark]: Boogie Preprocessor took 67.41 ms. Allocated memory is still 158.3 MB. Free memory was 120.4 MB in the beginning and 117.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:28,531 INFO L168 Benchmark]: RCFGBuilder took 1122.57 ms. Allocated memory is still 158.3 MB. Free memory was 117.9 MB in the beginning and 103.9 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:28,532 INFO L168 Benchmark]: TraceAbstraction took 1659.75 ms. Allocated memory is still 158.3 MB. Free memory was 103.4 MB in the beginning and 94.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:28,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory was 101.6 MB in the beginning and 101.4 MB in the end (delta: 126.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 380.61 ms. Allocated memory is still 158.3 MB. Free memory was 133.6 MB in the beginning and 120.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 67.41 ms. Allocated memory is still 158.3 MB. Free memory was 120.4 MB in the beginning and 117.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1122.57 ms. Allocated memory is still 158.3 MB. Free memory was 117.9 MB in the beginning and 103.9 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1659.75 ms. Allocated memory is still 158.3 MB. Free memory was 103.4 MB in the beginning and 94.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.5 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 43, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 187, overapproximation of bitwiseXor at line 39. Possible FailurePath: [L17-L20] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L179] double y = -1.0 / 0.0; [L180] double x = __VERIFIER_nondet_double(); [L182] CALL isfinite_double(x) [L163] __int32_t hx; [L165] ieee_double_shape_type gh_u; [L166] gh_u.value = (x) [L167] EXPR gh_u.parts.msw [L167] (hx) = gh_u.parts.msw [L169] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L182] RET isfinite_double(x) [L182] COND TRUE isfinite_double(x) [L184] CALL, EXPR fmod_double(x, y) [L23] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L24] __uint32_t lx, ly, lz; [L27] ieee_double_shape_type ew_u; [L28] ew_u.value = (x) [L29] EXPR ew_u.parts.msw [L29] (hx) = ew_u.parts.msw [L30] EXPR ew_u.parts.lsw [L30] (lx) = ew_u.parts.lsw [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (y) [L35] EXPR ew_u.parts.msw [L35] (hy) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (ly) = ew_u.parts.lsw [L38] sx = hx & 0x80000000 [L39] hx ^= sx [L40] hy &= 0x7fffffff [L42-L43] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L44] return (x * y) / (x * y); [L184] RET, EXPR fmod_double(x, y) [L184] double res = fmod_double(x, y); [L187] COND TRUE res != x [L188] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1131b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, 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...