/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/double_req_bl_1251b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:01:32,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:01:32,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:01:32,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:01:32,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:01:32,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:01:32,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:01:32,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:01:32,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:01:32,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:01:32,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:01:32,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:01:32,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:01:32,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:01:32,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:01:32,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:01:32,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:01:32,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:01:32,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:01:32,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:01:32,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:01:32,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:01:32,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:01:32,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:01:32,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:01:32,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:01:32,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:01:32,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:01:32,226 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 13:01:32,244 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:01:32,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:01:32,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:01:32,247 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:01:32,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:01:32,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:01:32,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:01:32,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:01:32,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:01:32,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:01:32,248 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:01:32,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:01:32,248 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:01:32,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:01:32,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:01:32,249 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:01:32,249 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:01:32,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:01:32,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:01:32,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:01:32,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:01:32,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:01:32,252 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:01:32,561 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:01:32,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:01:32,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:01:32,579 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:01:32,580 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:01:32,580 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-07-07 13:01:32,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/239c0083f/992596aedfa147aa8887c9315a8e24d2/FLAG7799fc2c5 [2020-07-07 13:01:33,095 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:01:33,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-07-07 13:01:33,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/239c0083f/992596aedfa147aa8887c9315a8e24d2/FLAG7799fc2c5 [2020-07-07 13:01:33,467 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/239c0083f/992596aedfa147aa8887c9315a8e24d2 [2020-07-07 13:01:33,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:01:33,484 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:01:33,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:01:33,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:01:33,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:01:33,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:01:33" (1/1) ... [2020-07-07 13:01:33,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a431c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:33, skipping insertion in model container [2020-07-07 13:01:33,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:01:33" (1/1) ... [2020-07-07 13:01:33,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:01:33,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:01:33,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:01:33,722 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:01:33,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:01:33,774 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:01:33,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:33 WrapperNode [2020-07-07 13:01:33,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:01:33,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:01:33,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:01:33,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:01:33,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:33" (1/1) ... [2020-07-07 13:01:33,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:33" (1/1) ... [2020-07-07 13:01:33,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:33" (1/1) ... [2020-07-07 13:01:33,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:33" (1/1) ... [2020-07-07 13:01:33,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:33" (1/1) ... [2020-07-07 13:01:33,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:33" (1/1) ... [2020-07-07 13:01:33,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:33" (1/1) ... [2020-07-07 13:01:33,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:01:33,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:01:33,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:01:33,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:01:33,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:33" (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 13:01:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:01:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:01:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-07 13:01:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-07-07 13:01:33,970 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-07-07 13:01:33,970 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:01:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:01:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-07 13:01:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-07 13:01:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-07-07 13:01:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:01:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 13:01:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:01:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:01:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-07-07 13:01:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:01:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:01:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:01:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 13:01:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:01:34,359 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:01:34,359 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-07 13:01:34,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:01:34 BoogieIcfgContainer [2020-07-07 13:01:34,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:01:34,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:01:34,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:01:34,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:01:34,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:01:33" (1/3) ... [2020-07-07 13:01:34,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df51ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:01:34, skipping insertion in model container [2020-07-07 13:01:34,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:33" (2/3) ... [2020-07-07 13:01:34,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df51ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:01:34, skipping insertion in model container [2020-07-07 13:01:34,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:01:34" (3/3) ... [2020-07-07 13:01:34,372 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1251b.c [2020-07-07 13:01:34,382 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:01:34,389 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:01:34,401 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:01:34,421 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:01:34,421 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:01:34,421 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:01:34,422 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:01:34,422 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:01:34,422 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:01:34,422 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:01:34,422 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:01:34,435 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-07-07 13:01:34,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-07 13:01:34,445 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:34,446 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] [2020-07-07 13:01:34,446 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:34,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:34,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1770687738, now seen corresponding path program 1 times [2020-07-07 13:01:34,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:34,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524597531] [2020-07-07 13:01:34,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:34,802 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 13:01:34,802 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:34,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524597531] [2020-07-07 13:01:34,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:01:34,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:01:34,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400541935] [2020-07-07 13:01:34,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:01:34,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:01:34,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:01:34,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:01:34,828 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 4 states. [2020-07-07 13:01:35,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:01:35,069 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2020-07-07 13:01:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:01:35,071 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-07-07 13:01:35,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:01:35,082 INFO L225 Difference]: With dead ends: 141 [2020-07-07 13:01:35,083 INFO L226 Difference]: Without dead ends: 74 [2020-07-07 13:01:35,087 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 13:01:35,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-07 13:01:35,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-07-07 13:01:35,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-07-07 13:01:35,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2020-07-07 13:01:35,152 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 40 [2020-07-07 13:01:35,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:01:35,153 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2020-07-07 13:01:35,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:01:35,156 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2020-07-07 13:01:35,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-07 13:01:35,161 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:35,161 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] [2020-07-07 13:01:35,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:01:35,163 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:35,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:35,164 INFO L82 PathProgramCache]: Analyzing trace with hash 524719120, now seen corresponding path program 1 times [2020-07-07 13:01:35,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:35,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298210382] [2020-07-07 13:01:35,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:35,421 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 13:01:35,421 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:35,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298210382] [2020-07-07 13:01:35,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:01:35,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:01:35,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021118584] [2020-07-07 13:01:35,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:01:35,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:01:35,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:01:35,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:01:35,426 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 6 states. [2020-07-07 13:01:35,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:01:35,656 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2020-07-07 13:01:35,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:01:35,657 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-07-07 13:01:35,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:01:35,661 INFO L225 Difference]: With dead ends: 88 [2020-07-07 13:01:35,661 INFO L226 Difference]: Without dead ends: 79 [2020-07-07 13:01:35,662 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 13:01:35,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-07-07 13:01:35,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2020-07-07 13:01:35,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-07 13:01:35,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-07-07 13:01:35,680 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 54 [2020-07-07 13:01:35,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:01:35,680 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-07-07 13:01:35,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:01:35,681 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-07-07 13:01:35,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-07 13:01:35,683 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:35,683 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] [2020-07-07 13:01:35,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:01:35,683 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:35,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:35,684 INFO L82 PathProgramCache]: Analyzing trace with hash 2023591653, now seen corresponding path program 1 times [2020-07-07 13:01:35,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:35,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529355419] [2020-07-07 13:01:35,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:35,958 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 13:01:35,958 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:35,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529355419] [2020-07-07 13:01:35,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:01:35,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:01:35,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913133655] [2020-07-07 13:01:35,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:01:35,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:01:35,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:01:35,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:01:35,964 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand 6 states. [2020-07-07 13:01:36,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:01:36,190 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2020-07-07 13:01:36,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:01:36,192 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-07 13:01:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:01:36,197 INFO L225 Difference]: With dead ends: 92 [2020-07-07 13:01:36,198 INFO L226 Difference]: Without dead ends: 83 [2020-07-07 13:01:36,199 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 13:01:36,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-07-07 13:01:36,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2020-07-07 13:01:36,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-07 13:01:36,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-07-07 13:01:36,230 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 57 [2020-07-07 13:01:36,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:01:36,231 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-07-07 13:01:36,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:01:36,231 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-07-07 13:01:36,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-07 13:01:36,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:36,235 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] [2020-07-07 13:01:36,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:01:36,236 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:36,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:36,236 INFO L82 PathProgramCache]: Analyzing trace with hash 425668389, now seen corresponding path program 1 times [2020-07-07 13:01:36,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:36,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992016352] [2020-07-07 13:01:36,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:01:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:01:36,472 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:36,473 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:01:36,473 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:01:36,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:01:36,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:01:36 BoogieIcfgContainer [2020-07-07 13:01:36,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:01:36,504 INFO L168 Benchmark]: Toolchain (without parser) took 3018.32 ms. Allocated memory was 144.7 MB in the beginning and 233.8 MB in the end (delta: 89.1 MB). Free memory was 103.3 MB in the beginning and 101.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:36,506 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 144.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:01:36,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.00 ms. Allocated memory is still 144.7 MB. Free memory was 103.1 MB in the beginning and 92.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:36,512 INFO L168 Benchmark]: Boogie Preprocessor took 125.97 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 92.0 MB in the beginning and 178.7 MB in the end (delta: -86.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:36,514 INFO L168 Benchmark]: RCFGBuilder took 462.65 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 156.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:36,520 INFO L168 Benchmark]: TraceAbstraction took 2134.52 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 155.6 MB in the beginning and 101.1 MB in the end (delta: 54.5 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:36,530 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 144.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 289.00 ms. Allocated memory is still 144.7 MB. Free memory was 103.1 MB in the beginning and 92.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.97 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 92.0 MB in the beginning and 178.7 MB in the end (delta: -86.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 462.65 ms. Allocated memory is still 201.3 MB. Free memory was 178.7 MB in the beginning and 156.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2134.52 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 155.6 MB in the beginning and 101.1 MB in the end (delta: 54.5 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 78]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 77, overapproximation of someBinaryArithmeticDOUBLEoperation at line 65. Possible FailurePath: [L64] double x = __VERIFIER_nondet_double(); [L65] double y = 0.0 / 0.0; [L72] CALL, EXPR isnan_double(x) [L16] return x != x; [L72] RET, EXPR isnan_double(x) [L72] COND TRUE !isnan_double(x) [L74] CALL, EXPR fmax_double(x, y) [L55] CALL, EXPR __fpclassify_double(x) [L27] __uint32_t msw, lsw; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (msw) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lsw) = ew_u.parts.lsw [L36-L37] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L39-L40] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L42-L43] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L46-L47] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L50] return 0; [L55] RET, EXPR __fpclassify_double(x) [L55] COND TRUE __fpclassify_double(x) == 0 [L56] return y; [L74] RET, EXPR fmax_double(x, y) [L74] double res = fmax_double(x, y); [L77] COND TRUE res != x [L78] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 243 SDtfs, 97 SDslu, 395 SDs, 0 SdLazy, 325 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred 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...