/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_1252b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:11:38,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:11:38,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:11:38,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:11:38,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:11:38,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:11:38,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:11:38,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:11:38,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:11:38,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:11:38,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:11:38,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:11:38,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:11:38,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:11:38,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:11:38,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:11:38,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:11:38,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:11:38,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:11:38,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:11:38,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:11:38,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:11:38,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:11:38,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:11:38,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 16:11:38,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:11:38,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:11:38,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:11:38,313 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 16:11:38,331 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:11:38,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:11:38,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:11:38,334 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:11:38,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:11:38,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:11:38,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:11:38,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:11:38,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:11:38,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:11:38,336 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:11:38,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:11:38,337 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:11:38,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:11:38,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:11:38,338 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:11:38,338 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:11:38,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:11:38,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:11:38,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:11:38,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:11:38,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:11:38,339 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:11:38,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:11:38,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:11:38,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:11:38,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:11:38,810 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:11:38,811 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1252b.c [2020-09-04 16:11:38,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f9c0c824/b0cdcf8b017446edb87f90266dec17d3/FLAG71e73d292 [2020-09-04 16:11:39,427 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:11:39,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_1252b.c [2020-09-04 16:11:39,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f9c0c824/b0cdcf8b017446edb87f90266dec17d3/FLAG71e73d292 [2020-09-04 16:11:39,793 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f9c0c824/b0cdcf8b017446edb87f90266dec17d3 [2020-09-04 16:11:39,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:11:39,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:11:39,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:11:39,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:11:39,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:11:39,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:11:39" (1/1) ... [2020-09-04 16:11:39,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a5289c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:39, skipping insertion in model container [2020-09-04 16:11:39,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:11:39" (1/1) ... [2020-09-04 16:11:39,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:11:39,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:11:40,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:11:40,100 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:11:40,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:11:40,250 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:11:40,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:40 WrapperNode [2020-09-04 16:11:40,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:11:40,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:11:40,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:11:40,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:11:40,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:40" (1/1) ... [2020-09-04 16:11:40,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:40" (1/1) ... [2020-09-04 16:11:40,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:40" (1/1) ... [2020-09-04 16:11:40,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:40" (1/1) ... [2020-09-04 16:11:40,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:40" (1/1) ... [2020-09-04 16:11:40,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:40" (1/1) ... [2020-09-04 16:11:40,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:40" (1/1) ... [2020-09-04 16:11:40,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:11:40,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:11:40,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:11:40,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:11:40,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:40" (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 16:11:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:11:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:11:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-09-04 16:11:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2020-09-04 16:11:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-09-04 16:11:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:11:40,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:11:40,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-09-04 16:11:40,373 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-09-04 16:11:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 16:11:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 16:11:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:11:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:11:40,374 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2020-09-04 16:11:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-09-04 16:11:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:11:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:11:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:11:40,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 16:11:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:11:40,788 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:11:40,788 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-04 16:11:40,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:11:40 BoogieIcfgContainer [2020-09-04 16:11:40,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:11:40,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:11:40,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:11:40,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:11:40,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:11:39" (1/3) ... [2020-09-04 16:11:40,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa09981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:11:40, skipping insertion in model container [2020-09-04 16:11:40,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:40" (2/3) ... [2020-09-04 16:11:40,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa09981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:11:40, skipping insertion in model container [2020-09-04 16:11:40,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:11:40" (3/3) ... [2020-09-04 16:11:40,803 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1252b.c [2020-09-04 16:11:40,814 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:11:40,824 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:11:40,844 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:11:40,867 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:11:40,867 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:11:40,867 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:11:40,867 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:11:40,867 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:11:40,867 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:11:40,868 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:11:40,868 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:11:40,885 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-09-04 16:11:40,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-04 16:11:40,898 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:40,899 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 16:11:40,899 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:40,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:40,906 INFO L82 PathProgramCache]: Analyzing trace with hash 2131665852, now seen corresponding path program 1 times [2020-09-04 16:11:40,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:40,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445868707] [2020-09-04 16:11:40,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:40,985 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:41,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:41,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:11:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:41,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:41,196 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 16:11:41,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445868707] [2020-09-04 16:11:41,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:41,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 16:11:41,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259434126] [2020-09-04 16:11:41,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 16:11:41,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:41,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 16:11:41,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:11:41,227 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 4 states. [2020-09-04 16:11:41,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:41,504 INFO L93 Difference]: Finished difference Result 164 states and 192 transitions. [2020-09-04 16:11:41,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 16:11:41,506 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-09-04 16:11:41,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:41,520 INFO L225 Difference]: With dead ends: 164 [2020-09-04 16:11:41,521 INFO L226 Difference]: Without dead ends: 81 [2020-09-04 16:11:41,526 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 16:11:41,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-04 16:11:41,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-09-04 16:11:41,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-04 16:11:41,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-09-04 16:11:41,593 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 34 [2020-09-04 16:11:41,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:41,594 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-09-04 16:11:41,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 16:11:41,594 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-09-04 16:11:41,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-04 16:11:41,597 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:41,598 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 16:11:41,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:11:41,598 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:41,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:41,599 INFO L82 PathProgramCache]: Analyzing trace with hash -630897281, now seen corresponding path program 1 times [2020-09-04 16:11:41,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:41,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171120054] [2020-09-04 16:11:41,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:41,603 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:41,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:41,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:11:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:41,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:41,825 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 16:11:41,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171120054] [2020-09-04 16:11:41,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:41,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:11:41,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084668717] [2020-09-04 16:11:41,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:11:41,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:41,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:11:41,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:11:41,850 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 6 states. [2020-09-04 16:11:42,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:42,103 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2020-09-04 16:11:42,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:11:42,104 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-09-04 16:11:42,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:42,108 INFO L225 Difference]: With dead ends: 117 [2020-09-04 16:11:42,108 INFO L226 Difference]: Without dead ends: 86 [2020-09-04 16:11:42,110 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 16:11:42,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-04 16:11:42,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2020-09-04 16:11:42,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-04 16:11:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-09-04 16:11:42,129 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 43 [2020-09-04 16:11:42,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:42,129 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-09-04 16:11:42,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:11:42,130 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-09-04 16:11:42,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-04 16:11:42,132 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:42,132 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 16:11:42,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:11:42,132 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:42,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:42,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1681903777, now seen corresponding path program 1 times [2020-09-04 16:11:42,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:42,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283996662] [2020-09-04 16:11:42,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:42,135 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:42,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:42,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:11:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:42,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:42,315 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 16:11:42,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283996662] [2020-09-04 16:11:42,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:42,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:11:42,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042277961] [2020-09-04 16:11:42,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:11:42,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:42,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:11:42,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:11:42,320 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 6 states. [2020-09-04 16:11:42,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:42,532 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2020-09-04 16:11:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:11:42,532 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-09-04 16:11:42,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:42,534 INFO L225 Difference]: With dead ends: 121 [2020-09-04 16:11:42,535 INFO L226 Difference]: Without dead ends: 90 [2020-09-04 16:11:42,535 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 16:11:42,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-04 16:11:42,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2020-09-04 16:11:42,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-04 16:11:42,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-09-04 16:11:42,549 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 46 [2020-09-04 16:11:42,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:42,549 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-09-04 16:11:42,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:11:42,550 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-09-04 16:11:42,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-04 16:11:42,551 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:42,552 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 16:11:42,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:11:42,552 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:42,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:42,553 INFO L82 PathProgramCache]: Analyzing trace with hash -969429089, now seen corresponding path program 1 times [2020-09-04 16:11:42,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:42,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336804248] [2020-09-04 16:11:42,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:42,555 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:11:42,581 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:11:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:11:42,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:11:42,639 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 16:11:42,639 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 16:11:42,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 16:11:42,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:11:42 BoogieIcfgContainer [2020-09-04 16:11:42,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:11:42,665 INFO L168 Benchmark]: Toolchain (without parser) took 2856.57 ms. Allocated memory was 145.2 MB in the beginning and 233.3 MB in the end (delta: 88.1 MB). Free memory was 102.4 MB in the beginning and 119.9 MB in the end (delta: -17.5 MB). Peak memory consumption was 70.5 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:42,666 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:11:42,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.90 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 102.2 MB in the beginning and 180.7 MB in the end (delta: -78.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:42,668 INFO L168 Benchmark]: Boogie Preprocessor took 49.20 ms. Allocated memory is still 201.9 MB. Free memory was 180.7 MB in the beginning and 178.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:42,669 INFO L168 Benchmark]: RCFGBuilder took 492.92 ms. Allocated memory is still 201.9 MB. Free memory was 178.1 MB in the beginning and 154.9 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:42,670 INFO L168 Benchmark]: TraceAbstraction took 1866.86 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 154.2 MB in the beginning and 119.9 MB in the end (delta: 34.3 MB). Peak memory consumption was 65.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:42,674 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 440.90 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 102.2 MB in the beginning and 180.7 MB in the end (delta: -78.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.20 ms. Allocated memory is still 201.9 MB. Free memory was 180.7 MB in the beginning and 178.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 492.92 ms. Allocated memory is still 201.9 MB. Free memory was 178.1 MB in the beginning and 154.9 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1866.86 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 154.2 MB in the beginning and 119.9 MB in the end (delta: 34.3 MB). Peak memory consumption was 65.7 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 74. Possible FailurePath: [L73] float x = 0.0f; [L74] float y = -0.0f; [L75] CALL, EXPR fmax_float(x, y) [L44] CALL, EXPR __fpclassify_float(x) [L21] __uint32_t w; [L24] ieee_float_shape_type gf_u; [L25] gf_u.value = (x) [L26] EXPR gf_u.word [L26] (w) = gf_u.word [L29] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L31-L32] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L34-L35] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L37] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L40] return 0; [L44] RET, EXPR __fpclassify_float(x) [L44] COND TRUE __fpclassify_float(x) == 0 [L45] 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...