/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:11:36,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:11:36,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:11:36,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:11:36,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:11:36,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:11:36,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:11:36,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:11:36,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:11:36,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:11:36,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:11:36,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:11:36,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:11:36,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:11:36,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:11:36,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:11:36,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:11:36,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:11:36,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:11:36,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:11:36,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:11:36,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:11:36,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:11:36,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:11:36,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 16:11:36,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:11:36,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:11:37,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:11:37,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:11:37,022 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:11:37,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:11:37,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:11:37,026 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:11:37,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:11:37,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:11:37,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:11:37,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:11:37,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:11:37,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:11:37,028 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:11:37,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:11:37,029 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:11:37,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:11:37,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:11:37,030 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:11:37,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:11:37,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:11:37,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:11:37,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:11:37,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:11:37,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:11:37,031 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:11:37,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:11:37,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:11:37,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:11:37,529 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:11:37,530 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:11:37,531 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c [2020-09-04 16:11:37,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd653c2d6/4b314415ca9c4c1990353de39164fdae/FLAGd5a6bb211 [2020-09-04 16:11:38,185 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:11:38,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c [2020-09-04 16:11:38,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd653c2d6/4b314415ca9c4c1990353de39164fdae/FLAGd5a6bb211 [2020-09-04 16:11:38,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd653c2d6/4b314415ca9c4c1990353de39164fdae [2020-09-04 16:11:38,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:11:38,505 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:11:38,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:11:38,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:11:38,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:11:38,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:11:38" (1/1) ... [2020-09-04 16:11:38,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1855c216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:38, skipping insertion in model container [2020-09-04 16:11:38,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:11:38" (1/1) ... [2020-09-04 16:11:38,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:11:38,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:11:38,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:11:38,784 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:11:38,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:11:38,842 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:11:38,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:38 WrapperNode [2020-09-04 16:11:38,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:11:38,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:11:38,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:11:38,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:11:38,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:38" (1/1) ... [2020-09-04 16:11:38,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:38" (1/1) ... [2020-09-04 16:11:38,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:38" (1/1) ... [2020-09-04 16:11:38,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:38" (1/1) ... [2020-09-04 16:11:38,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:38" (1/1) ... [2020-09-04 16:11:38,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:38" (1/1) ... [2020-09-04 16:11:38,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:38" (1/1) ... [2020-09-04 16:11:38,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:11:38,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:11:38,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:11:38,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:11:38,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 16:11:39,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:11:39,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:11:39,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-09-04 16:11:39,058 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2020-09-04 16:11:39,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-09-04 16:11:39,058 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:11:39,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:11:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-09-04 16:11:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 16:11:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 16:11:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:11:39,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:11:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2020-09-04 16:11:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-09-04 16:11:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:11:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:11:39,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:11:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 16:11:39,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:11:39,478 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:11:39,478 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-04 16:11:39,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:11:39 BoogieIcfgContainer [2020-09-04 16:11:39,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:11:39,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:11:39,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:11:39,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:11:39,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:11:38" (1/3) ... [2020-09-04 16:11:39,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495aa742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:11:39, skipping insertion in model container [2020-09-04 16:11:39,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:38" (2/3) ... [2020-09-04 16:11:39,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495aa742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:11:39, skipping insertion in model container [2020-09-04 16:11:39,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:11:39" (3/3) ... [2020-09-04 16:11:39,493 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1252a.c [2020-09-04 16:11:39,504 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:11:39,514 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:11:39,536 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:11:39,559 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:11:39,559 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:11:39,559 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:11:39,559 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:11:39,560 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:11:39,560 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:11:39,560 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:11:39,560 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:11:39,578 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-09-04 16:11:39,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-04 16:11:39,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:39,591 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] [2020-09-04 16:11:39,592 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:39,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:39,599 INFO L82 PathProgramCache]: Analyzing trace with hash 2131665852, now seen corresponding path program 1 times [2020-09-04 16:11:39,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:39,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418386191] [2020-09-04 16:11:39,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:39,679 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:39,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:39,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:11:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:39,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:39,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:11:39,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418386191] [2020-09-04 16:11:39,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:39,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 16:11:39,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366294300] [2020-09-04 16:11:39,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 16:11:39,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:39,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 16:11:39,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:11:39,919 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 4 states. [2020-09-04 16:11:40,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:40,203 INFO L93 Difference]: Finished difference Result 164 states and 192 transitions. [2020-09-04 16:11:40,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 16:11:40,205 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-09-04 16:11:40,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:40,219 INFO L225 Difference]: With dead ends: 164 [2020-09-04 16:11:40,219 INFO L226 Difference]: Without dead ends: 81 [2020-09-04 16:11:40,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:11:40,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-04 16:11:40,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-09-04 16:11:40,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-04 16:11:40,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-09-04 16:11:40,293 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 34 [2020-09-04 16:11:40,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:40,294 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-09-04 16:11:40,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 16:11:40,294 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-09-04 16:11:40,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-04 16:11:40,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:40,298 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] [2020-09-04 16:11:40,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:11:40,298 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:40,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:40,299 INFO L82 PathProgramCache]: Analyzing trace with hash -630897281, now seen corresponding path program 1 times [2020-09-04 16:11:40,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:40,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630839622] [2020-09-04 16:11:40,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:40,303 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:40,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:40,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:11:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:40,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:40,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:11:40,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630839622] [2020-09-04 16:11:40,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:40,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:11:40,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137121548] [2020-09-04 16:11:40,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:11:40,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:40,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:11:40,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:11:40,542 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 6 states. [2020-09-04 16:11:40,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:40,782 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2020-09-04 16:11:40,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:11:40,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-09-04 16:11:40,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:40,787 INFO L225 Difference]: With dead ends: 117 [2020-09-04 16:11:40,787 INFO L226 Difference]: Without dead ends: 86 [2020-09-04 16:11:40,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:11:40,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-04 16:11:40,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2020-09-04 16:11:40,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-04 16:11:40,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-09-04 16:11:40,808 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 43 [2020-09-04 16:11:40,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:40,808 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-09-04 16:11:40,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:11:40,808 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-09-04 16:11:40,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-04 16:11:40,810 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:40,810 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] [2020-09-04 16:11:40,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:11:40,811 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:40,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:40,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1681903777, now seen corresponding path program 1 times [2020-09-04 16:11:40,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:40,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717415873] [2020-09-04 16:11:40,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:40,814 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:40,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:40,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:11:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:40,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:40,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:11:40,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717415873] [2020-09-04 16:11:40,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:40,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:11:40,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231256471] [2020-09-04 16:11:40,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:11:40,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:40,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:11:40,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:11:40,967 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 6 states. [2020-09-04 16:11:41,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:41,159 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2020-09-04 16:11:41,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:11:41,160 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-09-04 16:11:41,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:41,162 INFO L225 Difference]: With dead ends: 121 [2020-09-04 16:11:41,162 INFO L226 Difference]: Without dead ends: 90 [2020-09-04 16:11:41,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:11:41,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-04 16:11:41,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2020-09-04 16:11:41,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-04 16:11:41,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-09-04 16:11:41,176 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 46 [2020-09-04 16:11:41,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:41,176 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-09-04 16:11:41,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:11:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-09-04 16:11:41,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-04 16:11:41,178 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:41,178 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] [2020-09-04 16:11:41,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:11:41,179 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:41,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:41,179 INFO L82 PathProgramCache]: Analyzing trace with hash -969429089, now seen corresponding path program 1 times [2020-09-04 16:11:41,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:41,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584014323] [2020-09-04 16:11:41,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:41,184 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:11:41,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:11:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:11:41,260 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:11:41,293 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 16:11:41,293 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 16:11:41,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 16:11:41,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:11:41 BoogieIcfgContainer [2020-09-04 16:11:41,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:11:41,320 INFO L168 Benchmark]: Toolchain (without parser) took 2813.69 ms. Allocated memory was 139.5 MB in the beginning and 234.9 MB in the end (delta: 95.4 MB). Free memory was 103.6 MB in the beginning and 119.3 MB in the end (delta: -15.7 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:41,321 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:11:41,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.32 ms. Allocated memory is still 139.5 MB. Free memory was 103.4 MB in the beginning and 92.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:41,323 INFO L168 Benchmark]: Boogie Preprocessor took 126.26 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 92.4 MB in the beginning and 179.6 MB in the end (delta: -87.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:41,323 INFO L168 Benchmark]: RCFGBuilder took 514.57 ms. Allocated memory is still 202.4 MB. Free memory was 179.6 MB in the beginning and 155.7 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:41,324 INFO L168 Benchmark]: TraceAbstraction took 1830.97 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 155.7 MB in the beginning and 119.3 MB in the end (delta: 36.4 MB). Peak memory consumption was 68.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:41,328 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 333.32 ms. Allocated memory is still 139.5 MB. Free memory was 103.4 MB in the beginning and 92.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.26 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 92.4 MB in the beginning and 179.6 MB in the end (delta: -87.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 514.57 ms. Allocated memory is still 202.4 MB. Free memory was 179.6 MB in the beginning and 155.7 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1830.97 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 155.7 MB in the beginning and 119.3 MB in the end (delta: 36.4 MB). Peak memory consumption was 68.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 79]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 78, overapproximation of someUnaryFLOAToperation at line 72. Possible FailurePath: [L72] float x = -0.0f; [L73] float y = 0.0f; [L75] CALL, EXPR fmax_float(x, y) [L43] CALL, EXPR __fpclassify_float(x) [L20] __uint32_t w; [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (w) = gf_u.word [L28] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L30-L31] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L33-L34] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L36] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L39] return 0; [L43] RET, EXPR __fpclassify_float(x) [L43] COND TRUE __fpclassify_float(x) == 0 [L44] return y; [L75] RET, EXPR fmax_float(x, y) [L75] float res = fmax_float(x, y); [L78] EXPR res == 0.0f && __signbit_float(res) == 0 [L78] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L79] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 267 SDtfs, 53 SDslu, 494 SDs, 0 SdLazy, 352 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 25 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: 0.0s 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...