/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_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:01:23,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:01:23,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:01:23,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:01:23,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:01:23,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:01:23,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:01:23,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:01:23,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:01:23,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:01:23,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:01:23,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:01:23,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:01:23,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:01:23,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:01:23,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:01:23,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:01:23,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:01:23,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:01:23,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:01:23,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:01:23,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:01:23,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:01:23,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:01:23,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:01:23,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:01:23,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:01:23,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:01:23,481 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 13:01:23,495 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:01:23,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:01:23,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:01:23,497 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:01:23,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:01:23,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:01:23,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:01:23,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:01:23,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:01:23,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:01:23,499 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:01:23,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:01:23,499 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:01:23,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:01:23,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:01:23,500 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:01:23,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:01:23,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:01:23,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:01:23,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:01:23,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:01:23,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:01:23,502 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:01:23,769 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:01:23,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:01:23,785 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:01:23,786 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:01:23,787 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:01:23,787 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-07-07 13:01:23,843 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8263a954/73b4f65fdb6c4ad590152a417a007777/FLAGf1fb570de [2020-07-07 13:01:24,288 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:01:24,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-07-07 13:01:24,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8263a954/73b4f65fdb6c4ad590152a417a007777/FLAGf1fb570de [2020-07-07 13:01:24,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8263a954/73b4f65fdb6c4ad590152a417a007777 [2020-07-07 13:01:24,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:01:24,677 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:01:24,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:01:24,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:01:24,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:01:24,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:01:24" (1/1) ... [2020-07-07 13:01:24,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8dcd892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:24, skipping insertion in model container [2020-07-07 13:01:24,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:01:24" (1/1) ... [2020-07-07 13:01:24,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:01:24,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:01:24,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:01:24,894 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:01:24,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:01:25,030 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:01:25,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:25 WrapperNode [2020-07-07 13:01:25,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:01:25,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:01:25,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:01:25,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:01:25,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:25" (1/1) ... [2020-07-07 13:01:25,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:25" (1/1) ... [2020-07-07 13:01:25,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:25" (1/1) ... [2020-07-07 13:01:25,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:25" (1/1) ... [2020-07-07 13:01:25,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:25" (1/1) ... [2020-07-07 13:01:25,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:25" (1/1) ... [2020-07-07 13:01:25,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:25" (1/1) ... [2020-07-07 13:01:25,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:01:25,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:01:25,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:01:25,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:01:25,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:25" (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 [2020-07-07 13:01:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:01:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:01:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-07 13:01:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-07-07 13:01:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-07-07 13:01:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:01:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:01:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-07 13:01:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-07 13:01:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-07-07 13:01:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:01:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 13:01:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:01:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:01:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-07-07 13:01:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:01:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:01:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:01:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:01:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 13:01:25,456 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:01:25,457 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-07 13:01:25,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:01:25 BoogieIcfgContainer [2020-07-07 13:01:25,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:01:25,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:01:25,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:01:25,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:01:25,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:01:24" (1/3) ... [2020-07-07 13:01:25,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39eb54c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:01:25, skipping insertion in model container [2020-07-07 13:01:25,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:25" (2/3) ... [2020-07-07 13:01:25,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39eb54c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:01:25, skipping insertion in model container [2020-07-07 13:01:25,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:01:25" (3/3) ... [2020-07-07 13:01:25,470 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2020-07-07 13:01:25,481 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:01:25,489 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:01:25,504 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:01:25,525 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:01:25,525 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:01:25,525 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:01:25,526 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:01:25,526 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:01:25,526 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:01:25,526 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:01:25,526 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:01:25,545 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-07-07 13:01:25,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-07 13:01:25,557 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:25,558 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] [2020-07-07 13:01:25,559 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:25,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:25,565 INFO L82 PathProgramCache]: Analyzing trace with hash 6613302, now seen corresponding path program 1 times [2020-07-07 13:01:25,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:25,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462366291] [2020-07-07 13:01:25,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:25,836 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 13:01:25,837 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:25,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462366291] [2020-07-07 13:01:25,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:01:25,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:01:25,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870195450] [2020-07-07 13:01:25,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:01:25,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:01:25,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:01:25,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:01:25,864 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 4 states. [2020-07-07 13:01:26,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:01:26,105 INFO L93 Difference]: Finished difference Result 144 states and 165 transitions. [2020-07-07 13:01:26,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:01:26,107 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-07-07 13:01:26,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:01:26,118 INFO L225 Difference]: With dead ends: 144 [2020-07-07 13:01:26,118 INFO L226 Difference]: Without dead ends: 72 [2020-07-07 13:01:26,123 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 13:01:26,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-07-07 13:01:26,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-07-07 13:01:26,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-07-07 13:01:26,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2020-07-07 13:01:26,177 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 38 [2020-07-07 13:01:26,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:01:26,178 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2020-07-07 13:01:26,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:01:26,179 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2020-07-07 13:01:26,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-07 13:01:26,182 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:26,182 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] [2020-07-07 13:01:26,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:01:26,183 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:26,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:26,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1569895040, now seen corresponding path program 1 times [2020-07-07 13:01:26,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:26,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761428591] [2020-07-07 13:01:26,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:26,492 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 13:01:26,492 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:26,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761428591] [2020-07-07 13:01:26,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:01:26,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:01:26,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429017189] [2020-07-07 13:01:26,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:01:26,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:01:26,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:01:26,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:01:26,497 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand 6 states. [2020-07-07 13:01:26,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:01:26,737 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2020-07-07 13:01:26,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:01:26,738 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-07-07 13:01:26,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:01:26,744 INFO L225 Difference]: With dead ends: 93 [2020-07-07 13:01:26,748 INFO L226 Difference]: Without dead ends: 77 [2020-07-07 13:01:26,750 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 13:01:26,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-07-07 13:01:26,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2020-07-07 13:01:26,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-07 13:01:26,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-07-07 13:01:26,774 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 52 [2020-07-07 13:01:26,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:01:26,775 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-07-07 13:01:26,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:01:26,778 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-07-07 13:01:26,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-07 13:01:26,782 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:26,782 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] [2020-07-07 13:01:26,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:01:26,783 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:26,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:26,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1915658490, now seen corresponding path program 1 times [2020-07-07 13:01:26,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:26,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550010976] [2020-07-07 13:01:26,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:27,003 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 13:01:27,004 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:27,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550010976] [2020-07-07 13:01:27,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:01:27,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:01:27,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764733439] [2020-07-07 13:01:27,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:01:27,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:01:27,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:01:27,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:01:27,008 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 6 states. [2020-07-07 13:01:27,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:01:27,213 INFO L93 Difference]: Finished difference Result 97 states and 106 transitions. [2020-07-07 13:01:27,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:01:27,214 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-07-07 13:01:27,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:01:27,216 INFO L225 Difference]: With dead ends: 97 [2020-07-07 13:01:27,216 INFO L226 Difference]: Without dead ends: 81 [2020-07-07 13:01:27,217 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 13:01:27,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-07 13:01:27,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2020-07-07 13:01:27,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-07 13:01:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-07-07 13:01:27,230 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 55 [2020-07-07 13:01:27,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:01:27,230 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-07-07 13:01:27,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:01:27,231 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-07-07 13:01:27,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-07 13:01:27,232 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:27,233 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] [2020-07-07 13:01:27,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:01:27,233 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:27,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:27,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1520711866, now seen corresponding path program 1 times [2020-07-07 13:01:27,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:27,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217809581] [2020-07-07 13:01:27,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:01:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:01:27,372 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:27,372 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:01:27,372 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:01:27,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:01:27,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:01:27 BoogieIcfgContainer [2020-07-07 13:01:27,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:01:27,397 INFO L168 Benchmark]: Toolchain (without parser) took 2719.43 ms. Allocated memory was 138.4 MB in the beginning and 234.9 MB in the end (delta: 96.5 MB). Free memory was 103.5 MB in the beginning and 106.1 MB in the end (delta: -2.6 MB). Peak memory consumption was 93.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:27,398 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-07 13:01:27,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.54 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 103.3 MB in the beginning and 180.8 MB in the end (delta: -77.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:27,400 INFO L168 Benchmark]: Boogie Preprocessor took 42.85 ms. Allocated memory is still 201.9 MB. Free memory was 180.8 MB in the beginning and 178.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:27,401 INFO L168 Benchmark]: RCFGBuilder took 386.91 ms. Allocated memory is still 201.9 MB. Free memory was 178.4 MB in the beginning and 156.5 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:27,402 INFO L168 Benchmark]: TraceAbstraction took 1931.60 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 155.9 MB in the beginning and 106.1 MB in the end (delta: 49.8 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:27,406 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 351.54 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 103.3 MB in the beginning and 180.8 MB in the end (delta: -77.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.85 ms. Allocated memory is still 201.9 MB. Free memory was 180.8 MB in the beginning and 178.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 386.91 ms. Allocated memory is still 201.9 MB. Free memory was 178.4 MB in the beginning and 156.5 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1931.60 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 155.9 MB in the beginning and 106.1 MB in the end (delta: 49.8 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 66]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L61] double x = 0.0 / 0.0; [L62] double y = 0.0 / 0.0; [L63] CALL, EXPR fmin_double(x, y) [L45] CALL, EXPR __fpclassify_double(x) [L18] __uint32_t msw, lsw; [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L27-L28] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L41] return 0; [L45] RET, EXPR __fpclassify_double(x) [L45] COND TRUE __fpclassify_double(x) == 0 [L46] return y; [L63] RET, EXPR fmin_double(x, y) [L63] double res = fmin_double(x, y); [L65] CALL, EXPR isnan_double(res) [L16] return x != x; [L65] RET, EXPR isnan_double(res) [L65] COND TRUE !isnan_double(res) [L66] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 65 SDslu, 416 SDs, 0 SdLazy, 313 SolverSat, 29 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred 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...