/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:24:24,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:24:24,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:24:24,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:24:24,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:24:24,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:24:24,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:24:24,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:24:24,222 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:24:24,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:24:24,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:24:24,226 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:24:24,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:24:24,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:24:24,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:24:24,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:24:24,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:24:24,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:24:24,228 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:24:24,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:24:24,229 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:24:24,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:24:24,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:24:24,230 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:24:24,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:24:24,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:24:24,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:24:24,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:24:24,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:24:24,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:24:24,231 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:24:24,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:24:24,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:24:24,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:24:24,681 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:24:24,681 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:24:24,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c [2020-11-07 00:24:24,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aee140c33/78cc3d9cd85547d6a79f74d6603c731c/FLAG1089501bb [2020-11-07 00:24:25,401 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:24:25,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c [2020-11-07 00:24:25,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aee140c33/78cc3d9cd85547d6a79f74d6603c731c/FLAG1089501bb [2020-11-07 00:24:25,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aee140c33/78cc3d9cd85547d6a79f74d6603c731c [2020-11-07 00:24:25,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:24:25,743 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:24:25,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:25,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:24:25,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:24:25,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:25" (1/1) ... [2020-11-07 00:24:25,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c8d31ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:25, skipping insertion in model container [2020-11-07 00:24:25,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:25" (1/1) ... [2020-11-07 00:24:25,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:24:25,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:24:25,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:25,964 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:24:25,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:26,010 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:24:26,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26 WrapperNode [2020-11-07 00:24:26,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:26,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:24:26,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:24:26,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:24:26,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... [2020-11-07 00:24:26,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:24:26,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:24:26,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:24:26,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:24:26,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:24:26,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:24:26,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:24:26,138 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:24:26,139 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-11-07 00:24:26,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-11-07 00:24:26,139 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-11-07 00:24:26,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:24:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:24:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:24:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:24:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:24:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-11-07 00:24:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-11-07 00:24:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-11-07 00:24:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 00:24:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:24:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:24:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-11-07 00:24:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:24:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:24:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:24:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:24:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:24:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 00:24:26,643 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:24:26,643 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-07 00:24:26,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:26 BoogieIcfgContainer [2020-11-07 00:24:26,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:24:26,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:24:26,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:24:26,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:24:26,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:24:25" (1/3) ... [2020-11-07 00:24:26,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea65cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:26, skipping insertion in model container [2020-11-07 00:24:26,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:26" (2/3) ... [2020-11-07 00:24:26,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea65cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:26, skipping insertion in model container [2020-11-07 00:24:26,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:26" (3/3) ... [2020-11-07 00:24:26,654 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1231b.c [2020-11-07 00:24:26,670 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:24:26,674 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:24:26,687 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:24:26,711 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:24:26,711 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:24:26,712 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:24:26,712 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:24:26,712 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:24:26,712 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:24:26,712 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:24:26,712 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:24:26,728 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-11-07 00:24:26,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-07 00:24:26,740 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:26,741 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] [2020-11-07 00:24:26,741 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:26,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:26,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1036483350, now seen corresponding path program 1 times [2020-11-07 00:24:26,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:26,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820255146] [2020-11-07 00:24:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:26,828 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 00:24:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-07 00:24:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:24:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:24:27,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820255146] [2020-11-07 00:24:27,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:27,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:24:27,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643692835] [2020-11-07 00:24:27,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:24:27,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:27,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:24:27,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:24:27,142 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 4 states. [2020-11-07 00:24:27,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:27,485 INFO L93 Difference]: Finished difference Result 150 states and 173 transitions. [2020-11-07 00:24:27,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 00:24:27,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-11-07 00:24:27,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:27,505 INFO L225 Difference]: With dead ends: 150 [2020-11-07 00:24:27,506 INFO L226 Difference]: Without dead ends: 80 [2020-11-07 00:24:27,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:24:27,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-07 00:24:27,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-11-07 00:24:27,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-07 00:24:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2020-11-07 00:24:27,607 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 46 [2020-11-07 00:24:27,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:27,608 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2020-11-07 00:24:27,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:24:27,609 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2020-11-07 00:24:27,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-07 00:24:27,612 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:27,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:24:27,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:24:27,613 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:27,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:27,614 INFO L82 PathProgramCache]: Analyzing trace with hash -913409964, now seen corresponding path program 1 times [2020-11-07 00:24:27,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:27,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197908542] [2020-11-07 00:24:27,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:27,618 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 00:24:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-07 00:24:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:24:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:27,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:24:27,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197908542] [2020-11-07 00:24:27,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:27,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:24:27,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189887866] [2020-11-07 00:24:27,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:24:27,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:27,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:24:27,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:24:27,923 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 6 states. [2020-11-07 00:24:28,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:28,180 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2020-11-07 00:24:28,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:24:28,180 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-11-07 00:24:28,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:28,184 INFO L225 Difference]: With dead ends: 95 [2020-11-07 00:24:28,184 INFO L226 Difference]: Without dead ends: 85 [2020-11-07 00:24:28,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:24:28,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-11-07 00:24:28,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2020-11-07 00:24:28,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-07 00:24:28,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2020-11-07 00:24:28,204 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 60 [2020-11-07 00:24:28,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:28,204 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2020-11-07 00:24:28,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:24:28,205 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2020-11-07 00:24:28,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-07 00:24:28,207 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:28,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:24:28,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:24:28,208 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:28,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:28,208 INFO L82 PathProgramCache]: Analyzing trace with hash -2120476239, now seen corresponding path program 1 times [2020-11-07 00:24:28,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:28,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662419419] [2020-11-07 00:24:28,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:28,212 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:28,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:28,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 00:24:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:28,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-07 00:24:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:28,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:24:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:24:28,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662419419] [2020-11-07 00:24:28,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:28,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:24:28,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280788920] [2020-11-07 00:24:28,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:24:28,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:28,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:24:28,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:24:28,370 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand 6 states. [2020-11-07 00:24:28,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:28,627 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2020-11-07 00:24:28,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:24:28,628 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-11-07 00:24:28,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:28,630 INFO L225 Difference]: With dead ends: 99 [2020-11-07 00:24:28,630 INFO L226 Difference]: Without dead ends: 89 [2020-11-07 00:24:28,631 INFO L677 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 [2020-11-07 00:24:28,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-07 00:24:28,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 84. [2020-11-07 00:24:28,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-07 00:24:28,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2020-11-07 00:24:28,645 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 63 [2020-11-07 00:24:28,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:28,645 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2020-11-07 00:24:28,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:24:28,646 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2020-11-07 00:24:28,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-07 00:24:28,647 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:28,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:24:28,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:24:28,647 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:28,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:28,648 INFO L82 PathProgramCache]: Analyzing trace with hash -116489871, now seen corresponding path program 1 times [2020-11-07 00:24:28,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:28,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427720410] [2020-11-07 00:24:28,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:28,651 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:28,677 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:28,719 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:28,765 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:24:28,766 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:24:28,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:24:28,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:24:28 BoogieIcfgContainer [2020-11-07 00:24:28,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:24:28,789 INFO L168 Benchmark]: Toolchain (without parser) took 3049.93 ms. Allocated memory was 160.4 MB in the beginning and 207.6 MB in the end (delta: 47.2 MB). Free memory was 136.3 MB in the beginning and 164.9 MB in the end (delta: -28.7 MB). Peak memory consumption was 19.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:28,790 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 160.4 MB. Free memory was 135.3 MB in the beginning and 135.2 MB in the end (delta: 89.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:24:28,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.72 ms. Allocated memory is still 160.4 MB. Free memory was 135.5 MB in the beginning and 125.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:28,791 INFO L168 Benchmark]: Boogie Preprocessor took 45.49 ms. Allocated memory is still 160.4 MB. Free memory was 125.4 MB in the beginning and 123.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:28,792 INFO L168 Benchmark]: RCFGBuilder took 587.38 ms. Allocated memory is still 160.4 MB. Free memory was 123.7 MB in the beginning and 137.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 19.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:28,793 INFO L168 Benchmark]: TraceAbstraction took 2139.02 ms. Allocated memory was 160.4 MB in the beginning and 207.6 MB in the end (delta: 47.2 MB). Free memory was 136.8 MB in the beginning and 164.9 MB in the end (delta: -28.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:28,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 160.4 MB. Free memory was 135.3 MB in the beginning and 135.2 MB in the end (delta: 89.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 266.72 ms. Allocated memory is still 160.4 MB. Free memory was 135.5 MB in the beginning and 125.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.49 ms. Allocated memory is still 160.4 MB. Free memory was 125.4 MB in the beginning and 123.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 587.38 ms. Allocated memory is still 160.4 MB. Free memory was 123.7 MB in the beginning and 137.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 19.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2139.02 ms. Allocated memory was 160.4 MB in the beginning and 207.6 MB in the end (delta: 47.2 MB). Free memory was 136.8 MB in the beginning and 164.9 MB in the end (delta: -28.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 69, overapproximation of someBinaryArithmeticDOUBLEoperation at line 63. Possible FailurePath: [L62] double x = __VERIFIER_nondet_double(); [L63] double y = 0.0 / 0.0; [L64] CALL, EXPR isnan_double(x) [L18] return x != x; [L64] RET, EXPR isnan_double(x) [L64] COND TRUE !isnan_double(x) [L66] CALL, EXPR fmin_double(x, y) [L47] CALL, EXPR __fpclassify_double(x) [L20] __uint32_t msw, lsw; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L29-L30] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L32-L33] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L35-L36] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L39-L40] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L43] return 0; [L47] RET, EXPR __fpclassify_double(x) [L47] COND TRUE __fpclassify_double(x) == 0 [L48] return y; [L66] RET, EXPR fmin_double(x, y) [L66] double res = fmin_double(x, y); [L69] COND TRUE res != x [L70] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1231b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 261 SDtfs, 103 SDslu, 412 SDs, 0 SdLazy, 356 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s 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=89occurred 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: 0.1s 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...