/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_1251b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:24:31,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:24:31,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:24:31,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:24:31,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:24:31,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:24:31,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:24:31,489 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 00:24:31,504 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:24:31,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:24:31,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:24:31,510 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:24:31,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:24:31,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:24:31,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:24:31,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:24:31,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:24:31,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:24:31,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:24:31,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:24:31,512 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:24:31,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:24:31,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:24:31,513 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:24:31,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:24:31,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:24:31,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:24:31,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:24:31,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:24:31,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:24:31,514 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:24:31,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:24:31,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:24:31,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:24:31,974 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:24:31,975 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:24:31,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-11-07 00:24:32,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d44bdc0a/49e5fcaba8f840818904595e1c5ddf01/FLAG5d5f6a079 [2020-11-07 00:24:32,684 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:24:32,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-11-07 00:24:32,694 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d44bdc0a/49e5fcaba8f840818904595e1c5ddf01/FLAG5d5f6a079 [2020-11-07 00:24:32,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d44bdc0a/49e5fcaba8f840818904595e1c5ddf01 [2020-11-07 00:24:32,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:24:32,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:24:32,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:32,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:24:32,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:24:32,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:32" (1/1) ... [2020-11-07 00:24:32,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62043c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:32, skipping insertion in model container [2020-11-07 00:24:32,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:32" (1/1) ... [2020-11-07 00:24:33,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:24:33,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:24:33,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:33,219 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:24:33,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:24:33,265 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:24:33,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:33 WrapperNode [2020-11-07 00:24:33,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:24:33,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:24:33,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:24:33,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:24:33,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:33" (1/1) ... [2020-11-07 00:24:33,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:33" (1/1) ... [2020-11-07 00:24:33,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:33" (1/1) ... [2020-11-07 00:24:33,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:33" (1/1) ... [2020-11-07 00:24:33,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:33" (1/1) ... [2020-11-07 00:24:33,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:33" (1/1) ... [2020-11-07 00:24:33,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:33" (1/1) ... [2020-11-07 00:24:33,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:24:33,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:24:33,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:24:33,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:24:33,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:33" (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 [2020-11-07 00:24:33,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:24:33,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:24:33,450 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:24:33,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-11-07 00:24:33,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-11-07 00:24:33,451 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-11-07 00:24:33,451 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:24:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:24:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:24:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:24:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:24:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-11-07 00:24:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-11-07 00:24:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-11-07 00:24:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 00:24:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:24:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:24:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-11-07 00:24:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:24:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:24:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:24:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:24:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:24:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 00:24:34,127 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:24:34,127 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-07 00:24:34,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:34 BoogieIcfgContainer [2020-11-07 00:24:34,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:24:34,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:24:34,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:24:34,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:24:34,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:24:32" (1/3) ... [2020-11-07 00:24:34,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96de914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:34, skipping insertion in model container [2020-11-07 00:24:34,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:33" (2/3) ... [2020-11-07 00:24:34,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96de914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:34, skipping insertion in model container [2020-11-07 00:24:34,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:34" (3/3) ... [2020-11-07 00:24:34,144 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1251b.c [2020-11-07 00:24:34,162 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:24:34,166 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:24:34,181 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:24:34,207 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:24:34,208 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:24:34,208 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:24:34,208 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:24:34,208 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:24:34,208 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:24:34,208 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:24:34,209 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:24:34,227 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-11-07 00:24:34,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-07 00:24:34,240 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:34,241 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 00:24:34,241 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:34,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:34,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1864280971, now seen corresponding path program 1 times [2020-11-07 00:24:34,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:34,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76976384] [2020-11-07 00:24:34,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:34,338 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:34,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:34,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 00:24:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:34,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-07 00:24:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:34,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:24:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:34,631 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 00:24:34,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76976384] [2020-11-07 00:24:34,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:34,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:24:34,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970612425] [2020-11-07 00:24:34,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:24:34,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:34,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:24:34,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:24:34,658 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 4 states. [2020-11-07 00:24:34,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:34,965 INFO L93 Difference]: Finished difference Result 150 states and 173 transitions. [2020-11-07 00:24:34,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 00:24:34,967 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-11-07 00:24:34,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:34,978 INFO L225 Difference]: With dead ends: 150 [2020-11-07 00:24:34,979 INFO L226 Difference]: Without dead ends: 80 [2020-11-07 00:24:34,983 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 00:24:35,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-07 00:24:35,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-11-07 00:24:35,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-07 00:24:35,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2020-11-07 00:24:35,089 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 46 [2020-11-07 00:24:35,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:35,091 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2020-11-07 00:24:35,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:24:35,091 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2020-11-07 00:24:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-07 00:24:35,096 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:35,096 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 00:24:35,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:24:35,097 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:35,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:35,099 INFO L82 PathProgramCache]: Analyzing trace with hash -751884555, now seen corresponding path program 1 times [2020-11-07 00:24:35,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:35,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17161498] [2020-11-07 00:24:35,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:35,111 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:35,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:35,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 00:24:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:35,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-07 00:24:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:35,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:24:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:35,424 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 00:24:35,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17161498] [2020-11-07 00:24:35,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:35,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:24:35,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924717495] [2020-11-07 00:24:35,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:24:35,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:35,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:24:35,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:24:35,428 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 6 states. [2020-11-07 00:24:35,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:35,771 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2020-11-07 00:24:35,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:24:35,771 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-11-07 00:24:35,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:35,776 INFO L225 Difference]: With dead ends: 95 [2020-11-07 00:24:35,776 INFO L226 Difference]: Without dead ends: 85 [2020-11-07 00:24:35,778 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 00:24:35,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-11-07 00:24:35,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2020-11-07 00:24:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-07 00:24:35,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2020-11-07 00:24:35,799 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 60 [2020-11-07 00:24:35,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:35,800 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2020-11-07 00:24:35,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:24:35,801 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2020-11-07 00:24:35,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-07 00:24:35,803 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:35,803 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 00:24:35,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:24:35,804 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:35,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:35,804 INFO L82 PathProgramCache]: Analyzing trace with hash 555272722, now seen corresponding path program 1 times [2020-11-07 00:24:35,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:35,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306012069] [2020-11-07 00:24:35,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:35,808 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:35,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:24:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:35,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-11-07 00:24:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:35,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-07 00:24:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:35,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:24:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:24:36,015 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 00:24:36,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306012069] [2020-11-07 00:24:36,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:24:36,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:24:36,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308838722] [2020-11-07 00:24:36,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:24:36,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:24:36,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:24:36,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:24:36,021 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand 6 states. [2020-11-07 00:24:36,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:24:36,288 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2020-11-07 00:24:36,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:24:36,289 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-11-07 00:24:36,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:24:36,291 INFO L225 Difference]: With dead ends: 99 [2020-11-07 00:24:36,291 INFO L226 Difference]: Without dead ends: 89 [2020-11-07 00:24:36,292 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 00:24:36,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-07 00:24:36,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 84. [2020-11-07 00:24:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-07 00:24:36,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2020-11-07 00:24:36,306 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 63 [2020-11-07 00:24:36,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:24:36,307 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2020-11-07 00:24:36,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:24:36,307 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2020-11-07 00:24:36,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-07 00:24:36,309 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:24:36,310 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 00:24:36,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:24:36,310 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:24:36,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:24:36,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1735708206, now seen corresponding path program 1 times [2020-11-07 00:24:36,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:24:36,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74160345] [2020-11-07 00:24:36,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:24:36,314 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:24:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:36,355 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:24:36,404 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:24:36,451 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:24:36,452 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:24:36,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:24:36,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:24:36 BoogieIcfgContainer [2020-11-07 00:24:36,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:24:36,478 INFO L168 Benchmark]: Toolchain (without parser) took 3497.15 ms. Allocated memory was 151.0 MB in the beginning and 183.5 MB in the end (delta: 32.5 MB). Free memory was 134.4 MB in the beginning and 87.0 MB in the end (delta: 47.4 MB). Peak memory consumption was 79.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:36,479 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:24:36,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.46 ms. Allocated memory is still 151.0 MB. Free memory was 133.8 MB in the beginning and 123.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:36,481 INFO L168 Benchmark]: Boogie Preprocessor took 95.67 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 134.0 MB in the end (delta: -10.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:36,482 INFO L168 Benchmark]: RCFGBuilder took 762.59 ms. Allocated memory is still 151.0 MB. Free memory was 134.0 MB in the beginning and 111.3 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:36,483 INFO L168 Benchmark]: TraceAbstraction took 2342.22 ms. Allocated memory was 151.0 MB in the beginning and 183.5 MB in the end (delta: 32.5 MB). Free memory was 110.9 MB in the beginning and 87.0 MB in the end (delta: 24.0 MB). Peak memory consumption was 57.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:24:36,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 281.46 ms. Allocated memory is still 151.0 MB. Free memory was 133.8 MB in the beginning and 123.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 95.67 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 134.0 MB in the end (delta: -10.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 762.59 ms. Allocated memory is still 151.0 MB. Free memory was 134.0 MB in the beginning and 111.3 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2342.22 ms. Allocated memory was 151.0 MB in the beginning and 183.5 MB in the end (delta: 32.5 MB). Free memory was 110.9 MB in the beginning and 87.0 MB in the end (delta: 24.0 MB). Peak memory consumption was 57.2 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 79, overapproximation of someBinaryArithmeticDOUBLEoperation at line 67. Possible FailurePath: [L66] double x = __VERIFIER_nondet_double(); [L67] double y = 0.0 / 0.0; [L74] CALL, EXPR isnan_double(x) [L18] return x != x; [L74] RET, EXPR isnan_double(x) [L74] COND TRUE !isnan_double(x) [L76] CALL, EXPR fmax_double(x, y) [L57] CALL, EXPR __fpclassify_double(x) [L29] __uint32_t msw, lsw; [L32] ieee_double_shape_type ew_u; [L33] ew_u.value = (x) [L34] EXPR ew_u.parts.msw [L34] (msw) = ew_u.parts.msw [L35] EXPR ew_u.parts.lsw [L35] (lsw) = ew_u.parts.lsw [L38-L39] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L41-L42] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L44-L45] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L48-L49] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L52] return 0; [L57] RET, EXPR __fpclassify_double(x) [L57] COND TRUE __fpclassify_double(x) == 0 [L58] return y; [L76] RET, EXPR fmax_double(x, y) [L76] double res = fmax_double(x, y); [L79] COND TRUE res != x [L80] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1251b.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: 2.2s, 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, 0.3s 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...