/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:02:18,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:02:18,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:02:18,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:02:18,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:02:18,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:02:18,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:02:18,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:02:18,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:02:18,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:02:18,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:02:18,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:02:18,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:02:18,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:02:18,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:02:18,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:02:18,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:02:18,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:02:18,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:02:18,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:02:18,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:02:18,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:02:18,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:02:18,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:02:18,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:02:18,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:02:18,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:02:18,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:02:18,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:02:18,409 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:02:18,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:02:18,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:02:18,411 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:02:18,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:02:18,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:02:18,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:02:18,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:02:18,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:02:18,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:02:18,412 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:02:18,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:02:18,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:02:18,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:02:18,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:02:18,413 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:02:18,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:02:18,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:02:18,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:02:18,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:02:18,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:02:18,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:02:18,414 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:02:18,711 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:02:18,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:02:18,725 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:02:18,726 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:02:18,727 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:02:18,727 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1230.c [2020-07-07 13:02:18,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64e689c8d/fb8275f5aab24a7985b11f366c4c8da2/FLAG9bc78b219 [2020-07-07 13:02:19,234 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:02:19,235 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1230.c [2020-07-07 13:02:19,241 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64e689c8d/fb8275f5aab24a7985b11f366c4c8da2/FLAG9bc78b219 [2020-07-07 13:02:19,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64e689c8d/fb8275f5aab24a7985b11f366c4c8da2 [2020-07-07 13:02:19,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:02:19,692 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:02:19,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:02:19,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:02:19,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:02:19,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:02:19" (1/1) ... [2020-07-07 13:02:19,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42013dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:19, skipping insertion in model container [2020-07-07 13:02:19,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:02:19" (1/1) ... [2020-07-07 13:02:19,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:02:19,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:02:19,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:02:19,958 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:02:19,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:02:20,083 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:02:20,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:20 WrapperNode [2020-07-07 13:02:20,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:02:20,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:02:20,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:02:20,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:02:20,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:20" (1/1) ... [2020-07-07 13:02:20,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:20" (1/1) ... [2020-07-07 13:02:20,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:20" (1/1) ... [2020-07-07 13:02:20,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:20" (1/1) ... [2020-07-07 13:02:20,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:20" (1/1) ... [2020-07-07 13:02:20,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:20" (1/1) ... [2020-07-07 13:02:20,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:20" (1/1) ... [2020-07-07 13:02:20,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:02:20,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:02:20,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:02:20,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:02:20,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:02:20,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:02:20,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:02:20,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-07-07 13:02:20,186 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2020-07-07 13:02:20,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-07 13:02:20,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:02:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:02:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-07-07 13:02:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:02:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 13:02:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:02:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:02:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2020-07-07 13:02:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-07 13:02:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:02:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:02:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:02:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:02:20,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 13:02:20,532 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:02:20,532 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-07 13:02:20,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:02:20 BoogieIcfgContainer [2020-07-07 13:02:20,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:02:20,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:02:20,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:02:20,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:02:20,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:02:19" (1/3) ... [2020-07-07 13:02:20,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c41247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:02:20, skipping insertion in model container [2020-07-07 13:02:20,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:02:20" (2/3) ... [2020-07-07 13:02:20,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c41247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:02:20, skipping insertion in model container [2020-07-07 13:02:20,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:02:20" (3/3) ... [2020-07-07 13:02:20,544 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2020-07-07 13:02:20,553 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:02:20,560 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:02:20,572 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:02:20,589 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:02:20,589 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:02:20,590 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:02:20,590 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:02:20,590 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:02:20,590 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:02:20,590 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:02:20,590 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:02:20,604 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-07-07 13:02:20,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-07 13:02:20,615 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:02:20,616 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] [2020-07-07 13:02:20,616 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:02:20,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:02:20,621 INFO L82 PathProgramCache]: Analyzing trace with hash 337584138, now seen corresponding path program 1 times [2020-07-07 13:02:20,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:02:20,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305654790] [2020-07-07 13:02:20,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:02:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:20,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:02:20,877 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:02:20,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305654790] [2020-07-07 13:02:20,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:02:20,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:02:20,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432571281] [2020-07-07 13:02:20,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:02:20,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:02:20,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:02:20,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:02:20,909 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-07-07 13:02:21,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:02:21,132 INFO L93 Difference]: Finished difference Result 132 states and 153 transitions. [2020-07-07 13:02:21,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:02:21,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-07-07 13:02:21,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:02:21,144 INFO L225 Difference]: With dead ends: 132 [2020-07-07 13:02:21,144 INFO L226 Difference]: Without dead ends: 66 [2020-07-07 13:02:21,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:02:21,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-07 13:02:21,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-07-07 13:02:21,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-07 13:02:21,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2020-07-07 13:02:21,199 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 37 [2020-07-07 13:02:21,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:02:21,200 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2020-07-07 13:02:21,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:02:21,200 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2020-07-07 13:02:21,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 13:02:21,203 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:02:21,203 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] [2020-07-07 13:02:21,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:02:21,204 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:02:21,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:02:21,205 INFO L82 PathProgramCache]: Analyzing trace with hash -356550436, now seen corresponding path program 1 times [2020-07-07 13:02:21,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:02:21,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221740064] [2020-07-07 13:02:21,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:02:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:21,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:02:21,417 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:02:21,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [221740064] [2020-07-07 13:02:21,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:02:21,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:02:21,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292845456] [2020-07-07 13:02:21,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:02:21,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:02:21,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:02:21,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:02:21,420 INFO L87 Difference]: Start difference. First operand 66 states and 73 transitions. Second operand 6 states. [2020-07-07 13:02:21,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:02:21,623 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2020-07-07 13:02:21,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:02:21,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-07-07 13:02:21,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:02:21,628 INFO L225 Difference]: With dead ends: 87 [2020-07-07 13:02:21,628 INFO L226 Difference]: Without dead ends: 71 [2020-07-07 13:02:21,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:02:21,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-07-07 13:02:21,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2020-07-07 13:02:21,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-07 13:02:21,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2020-07-07 13:02:21,645 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 46 [2020-07-07 13:02:21,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:02:21,645 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2020-07-07 13:02:21,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:02:21,646 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2020-07-07 13:02:21,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-07-07 13:02:21,648 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:02:21,648 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] [2020-07-07 13:02:21,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:02:21,648 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:02:21,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:02:21,649 INFO L82 PathProgramCache]: Analyzing trace with hash -192516793, now seen corresponding path program 1 times [2020-07-07 13:02:21,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:02:21,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588662108] [2020-07-07 13:02:21,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:02:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:02:21,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:02:21,868 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:02:21,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588662108] [2020-07-07 13:02:21,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:02:21,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:02:21,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576175510] [2020-07-07 13:02:21,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:02:21,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:02:21,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:02:21,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:02:21,872 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand 6 states. [2020-07-07 13:02:22,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:02:22,075 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2020-07-07 13:02:22,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:02:22,076 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-07-07 13:02:22,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:02:22,077 INFO L225 Difference]: With dead ends: 91 [2020-07-07 13:02:22,077 INFO L226 Difference]: Without dead ends: 75 [2020-07-07 13:02:22,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:02:22,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-07 13:02:22,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 70. [2020-07-07 13:02:22,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-07 13:02:22,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2020-07-07 13:02:22,091 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 49 [2020-07-07 13:02:22,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:02:22,091 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2020-07-07 13:02:22,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:02:22,092 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2020-07-07 13:02:22,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-07-07 13:02:22,093 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:02:22,094 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] [2020-07-07 13:02:22,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:02:22,094 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:02:22,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:02:22,095 INFO L82 PathProgramCache]: Analyzing trace with hash -587463417, now seen corresponding path program 1 times [2020-07-07 13:02:22,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:02:22,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354567866] [2020-07-07 13:02:22,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:02:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:02:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:02:22,296 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:02:22,297 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:02:22,297 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:02:22,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:02:22,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:02:22 BoogieIcfgContainer [2020-07-07 13:02:22,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:02:22,325 INFO L168 Benchmark]: Toolchain (without parser) took 2630.65 ms. Allocated memory was 136.8 MB in the beginning and 230.2 MB in the end (delta: 93.3 MB). Free memory was 99.8 MB in the beginning and 119.2 MB in the end (delta: -19.4 MB). Peak memory consumption was 73.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:02:22,326 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 136.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-07 13:02:22,328 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.62 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 99.6 MB in the beginning and 178.9 MB in the end (delta: -79.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-07-07 13:02:22,330 INFO L168 Benchmark]: Boogie Preprocessor took 35.75 ms. Allocated memory is still 200.3 MB. Free memory was 178.9 MB in the beginning and 176.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:02:22,331 INFO L168 Benchmark]: RCFGBuilder took 416.58 ms. Allocated memory is still 200.3 MB. Free memory was 176.5 MB in the beginning and 156.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-07-07 13:02:22,338 INFO L168 Benchmark]: TraceAbstraction took 1783.11 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 155.8 MB in the beginning and 119.2 MB in the end (delta: 36.6 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. [2020-07-07 13:02:22,348 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 136.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 388.62 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 99.6 MB in the beginning and 178.9 MB in the end (delta: -79.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.75 ms. Allocated memory is still 200.3 MB. Free memory was 178.9 MB in the beginning and 176.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 416.58 ms. Allocated memory is still 200.3 MB. Free memory was 176.5 MB in the beginning and 156.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1783.11 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 155.8 MB in the beginning and 119.2 MB in the end (delta: 36.6 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 55. Possible FailurePath: [L54] float x = 0.0f / 0.0f; [L55] float y = 0.0f / 0.0f; [L56] CALL, EXPR fmin_float(x, y) [L35] CALL, EXPR __fpclassify_float(x) [L12] __uint32_t w; [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L20] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L22-L23] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L25-L26] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L28] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L31] return 0; [L35] RET, EXPR __fpclassify_float(x) [L35] COND TRUE __fpclassify_float(x) == 0 [L36] return y; [L56] RET, EXPR fmin_float(x, y) [L56] float res = fmin_float(x, y); [L58] CALL, EXPR isnan_float(res) [L44] return x != x; [L58] RET, EXPR isnan_float(res) [L58] COND TRUE !isnan_float(res) [L59] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 221 SDtfs, 59 SDslu, 387 SDs, 0 SdLazy, 288 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 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...