/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1210.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 21:37:06,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 21:37:06,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 21:37:07,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 21:37:07,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 21:37:07,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 21:37:07,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 21:37:07,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 21:37:07,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 21:37:07,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 21:37:07,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 21:37:07,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 21:37:07,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 21:37:07,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 21:37:07,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 21:37:07,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 21:37:07,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 21:37:07,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 21:37:07,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 21:37:07,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 21:37:07,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 21:37:07,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 21:37:07,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 21:37:07,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 21:37:07,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 21:37:07,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 21:37:07,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 21:37:07,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 21:37:07,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 21:37:07,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 21:37:07,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 21:37:07,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 21:37:07,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 21:37:07,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 21:37:07,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 21:37:07,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 21:37:07,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 21:37:07,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 21:37:07,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 21:37:07,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 21:37:07,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 21:37:07,118 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 21:37:07,139 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 21:37:07,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 21:37:07,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 21:37:07,144 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 21:37:07,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 21:37:07,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 21:37:07,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 21:37:07,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 21:37:07,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 21:37:07,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 21:37:07,146 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 21:37:07,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 21:37:07,147 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 21:37:07,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 21:37:07,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 21:37:07,147 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 21:37:07,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 21:37:07,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 21:37:07,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 21:37:07,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 21:37:07,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 21:37:07,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 21:37:07,149 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 21:37:07,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 21:37:07,633 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 21:37:07,637 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 21:37:07,639 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 21:37:07,639 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 21:37:07,640 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1210.c [2020-09-04 21:37:07,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/747f2d726/f6eb9bb4d6544ffaa015b1f0cd8ddb33/FLAG7f3784bf1 [2020-09-04 21:37:08,262 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 21:37:08,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_1210.c [2020-09-04 21:37:08,276 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/747f2d726/f6eb9bb4d6544ffaa015b1f0cd8ddb33/FLAG7f3784bf1 [2020-09-04 21:37:08,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/747f2d726/f6eb9bb4d6544ffaa015b1f0cd8ddb33 [2020-09-04 21:37:08,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 21:37:08,602 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 21:37:08,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 21:37:08,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 21:37:08,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 21:37:08,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:37:08" (1/1) ... [2020-09-04 21:37:08,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd9b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:08, skipping insertion in model container [2020-09-04 21:37:08,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:37:08" (1/1) ... [2020-09-04 21:37:08,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 21:37:08,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 21:37:08,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:37:08,903 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 21:37:08,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:37:09,052 INFO L208 MainTranslator]: Completed translation [2020-09-04 21:37:09,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09 WrapperNode [2020-09-04 21:37:09,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 21:37:09,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 21:37:09,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 21:37:09,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 21:37:09,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (1/1) ... [2020-09-04 21:37:09,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 21:37:09,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 21:37:09,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 21:37:09,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 21:37:09,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (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 21:37:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 21:37:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 21:37:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2020-09-04 21:37:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-09-04 21:37:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 21:37:09,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 21:37:09,186 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2020-09-04 21:37:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 21:37:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 21:37:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 21:37:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 21:37:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 21:37:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 21:37:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-09-04 21:37:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 21:37:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 21:37:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 21:37:09,692 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 21:37:09,692 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-09-04 21:37:09,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:37:09 BoogieIcfgContainer [2020-09-04 21:37:09,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 21:37:09,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 21:37:09,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 21:37:09,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 21:37:09,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 09:37:08" (1/3) ... [2020-09-04 21:37:09,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da84212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:37:09, skipping insertion in model container [2020-09-04 21:37:09,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:37:09" (2/3) ... [2020-09-04 21:37:09,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da84212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:37:09, skipping insertion in model container [2020-09-04 21:37:09,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:37:09" (3/3) ... [2020-09-04 21:37:09,721 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2020-09-04 21:37:09,731 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 21:37:09,740 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 21:37:09,759 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 21:37:09,781 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 21:37:09,781 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 21:37:09,782 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 21:37:09,782 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 21:37:09,782 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 21:37:09,782 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 21:37:09,782 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 21:37:09,782 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 21:37:09,802 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2020-09-04 21:37:09,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-04 21:37:09,817 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:09,819 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] [2020-09-04 21:37:09,819 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:09,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:09,827 INFO L82 PathProgramCache]: Analyzing trace with hash -3412261, now seen corresponding path program 1 times [2020-09-04 21:37:09,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:09,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893024830] [2020-09-04 21:37:09,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:10,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:37:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:10,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 21:37:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:10,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-04 21:37:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:10,111 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 21:37:10,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893024830] [2020-09-04 21:37:10,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:37:10,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 21:37:10,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878546755] [2020-09-04 21:37:10,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 21:37:10,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:37:10,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 21:37:10,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 21:37:10,142 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 4 states. [2020-09-04 21:37:10,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:37:10,517 INFO L93 Difference]: Finished difference Result 249 states and 287 transitions. [2020-09-04 21:37:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 21:37:10,519 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-09-04 21:37:10,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:37:10,533 INFO L225 Difference]: With dead ends: 249 [2020-09-04 21:37:10,533 INFO L226 Difference]: Without dead ends: 120 [2020-09-04 21:37:10,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 21:37:10,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-09-04 21:37:10,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-09-04 21:37:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-04 21:37:10,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 124 transitions. [2020-09-04 21:37:10,606 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 124 transitions. Word has length 41 [2020-09-04 21:37:10,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:37:10,607 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 124 transitions. [2020-09-04 21:37:10,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 21:37:10,607 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2020-09-04 21:37:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-04 21:37:10,611 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:10,611 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] [2020-09-04 21:37:10,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 21:37:10,612 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:10,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:10,613 INFO L82 PathProgramCache]: Analyzing trace with hash 911495883, now seen corresponding path program 1 times [2020-09-04 21:37:10,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:10,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556461600] [2020-09-04 21:37:10,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:10,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:37:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:10,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 21:37:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:10,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-04 21:37:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:37:10,789 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 21:37:10,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556461600] [2020-09-04 21:37:10,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:37:10,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 21:37:10,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205650337] [2020-09-04 21:37:10,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 21:37:10,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:37:10,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 21:37:10,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 21:37:10,793 INFO L87 Difference]: Start difference. First operand 120 states and 124 transitions. Second operand 5 states. [2020-09-04 21:37:11,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:37:11,054 INFO L93 Difference]: Finished difference Result 127 states and 130 transitions. [2020-09-04 21:37:11,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 21:37:11,055 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-09-04 21:37:11,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:37:11,057 INFO L225 Difference]: With dead ends: 127 [2020-09-04 21:37:11,057 INFO L226 Difference]: Without dead ends: 120 [2020-09-04 21:37:11,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 21:37:11,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-09-04 21:37:11,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-09-04 21:37:11,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-04 21:37:11,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 123 transitions. [2020-09-04 21:37:11,076 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 123 transitions. Word has length 57 [2020-09-04 21:37:11,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:37:11,078 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 123 transitions. [2020-09-04 21:37:11,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 21:37:11,078 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 123 transitions. [2020-09-04 21:37:11,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-04 21:37:11,081 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:37:11,081 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:37:11,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 21:37:11,082 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:37:11,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:37:11,082 INFO L82 PathProgramCache]: Analyzing trace with hash 376809565, now seen corresponding path program 1 times [2020-09-04 21:37:11,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:37:11,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339714907] [2020-09-04 21:37:11,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:37:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:37:11,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:37:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:37:11,230 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:37:11,285 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 21:37:11,290 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 21:37:11,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 21:37:11,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 09:37:11 BoogieIcfgContainer [2020-09-04 21:37:11,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 21:37:11,385 INFO L168 Benchmark]: Toolchain (without parser) took 2782.04 ms. Allocated memory was 149.4 MB in the beginning and 231.2 MB in the end (delta: 81.8 MB). Free memory was 106.5 MB in the beginning and 122.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 66.0 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:11,386 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 149.4 MB. Free memory was 125.0 MB in the beginning and 124.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-04 21:37:11,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.16 ms. Allocated memory was 149.4 MB in the beginning and 206.0 MB in the end (delta: 56.6 MB). Free memory was 106.1 MB in the beginning and 184.7 MB in the end (delta: -78.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:11,388 INFO L168 Benchmark]: Boogie Preprocessor took 61.54 ms. Allocated memory is still 206.0 MB. Free memory was 184.7 MB in the beginning and 181.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:11,389 INFO L168 Benchmark]: RCFGBuilder took 590.77 ms. Allocated memory is still 206.0 MB. Free memory was 181.7 MB in the beginning and 149.7 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:11,390 INFO L168 Benchmark]: TraceAbstraction took 1669.55 ms. Allocated memory was 206.0 MB in the beginning and 231.2 MB in the end (delta: 25.2 MB). Free memory was 148.8 MB in the beginning and 122.4 MB in the end (delta: 26.4 MB). Peak memory consumption was 51.6 MB. Max. memory is 7.1 GB. [2020-09-04 21:37:11,394 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 149.4 MB. Free memory was 125.0 MB in the beginning and 124.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 450.16 ms. Allocated memory was 149.4 MB in the beginning and 206.0 MB in the end (delta: 56.6 MB). Free memory was 106.1 MB in the beginning and 184.7 MB in the end (delta: -78.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.54 ms. Allocated memory is still 206.0 MB. Free memory was 184.7 MB in the beginning and 181.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 590.77 ms. Allocated memory is still 206.0 MB. Free memory was 181.7 MB in the beginning and 149.7 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1669.55 ms. Allocated memory was 206.0 MB in the beginning and 231.2 MB in the end (delta: 25.2 MB). Free memory was 148.8 MB in the beginning and 122.4 MB in the end (delta: 26.4 MB). Peak memory consumption was 51.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 86]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L11] static const float one_modf = 1.0; VAL [\old(one_modf)=4294967300, one_modf=1] [L80] float x = 0.0f / 0.0f; VAL [one_modf=1] [L81] float iptr; VAL [iptr={3:0}, one_modf=1] [L82] CALL, EXPR modf_float(x, &iptr) VAL [\old(x)=4294967301, iptr={3:0}, one_modf=1] [L14] __int32_t i0, j0; VAL [\old(x)=4294967301, iptr={3:0}, iptr={3:0}, one_modf=1, x=4294967301] [L15] __uint32_t i; VAL [\old(x)=4294967301, iptr={3:0}, iptr={3:0}, one_modf=1, x=4294967301] [L17] ieee_float_shape_type gf_u; VAL [\old(x)=4294967301, gf_u={5:0}, iptr={3:0}, iptr={3:0}, one_modf=1, x=4294967301] [L18] gf_u.value = (x) VAL [\old(x)=4294967301, gf_u={5:0}, iptr={3:0}, iptr={3:0}, one_modf=1, x=4294967301] [L19] EXPR gf_u.word VAL [\old(x)=4294967301, gf_u={5:0}, gf_u.word=4294967295, iptr={3:0}, iptr={3:0}, one_modf=1, x=4294967301] [L19] (i0) = gf_u.word VAL [\old(x)=4294967301, gf_u={5:0}, gf_u.word=4294967295, i0=-1, iptr={3:0}, iptr={3:0}, one_modf=1, x=4294967301] [L21] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=4294967301, i0=-1, iptr={3:0}, iptr={3:0}, one_modf=1, x=4294967301] [L22] COND TRUE j0 < 23 VAL [\old(x)=4294967301, i0=-1, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, x=4294967301] [L23] COND TRUE j0 < 0 VAL [\old(x)=4294967301, i0=-1, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, x=4294967301] [L25] ieee_float_shape_type sf_u; VAL [\old(x)=4294967301, i0=-1, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, sf_u={2:0}, x=4294967301] [L26] sf_u.word = (i0 & 0x80000000) VAL [\old(x)=4294967301, i0=-1, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, sf_u={2:0}, x=4294967301] [L27] EXPR sf_u.value VAL [\old(x)=4294967301, i0=-1, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, sf_u={2:0}, sf_u.value=4294967298, x=4294967301] [L27] (*iptr) = sf_u.value VAL [\old(x)=4294967301, i0=-1, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, sf_u={2:0}, sf_u.value=4294967298, x=4294967301] [L29] return x; VAL [\old(x)=4294967301, \result=4294967301, i0=-1, iptr={3:0}, iptr={3:0}, j0=-1, one_modf=1, x=4294967301] [L82] RET, EXPR modf_float(x, &iptr) VAL [iptr={3:0}, modf_float(x, &iptr)=4294967301, one_modf=1, x=4294967301] [L82] float res = modf_float(x, &iptr); VAL [iptr={3:0}, modf_float(x, &iptr)=4294967301, one_modf=1, res=4294967301, x=4294967301] [L85] EXPR \read(iptr) VAL [\read(iptr)=4294967298, iptr={3:0}, one_modf=1, res=4294967301, x=4294967301] [L85] CALL, EXPR isnan_float(iptr) VAL [\old(x)=4294967298, one_modf=1] [L73] return x != x; VAL [\old(x)=4294967298, \result=1, one_modf=1, x=4294967298] [L85] RET, EXPR isnan_float(iptr) VAL [\read(iptr)=4294967298, iptr={3:0}, isnan_float(iptr)=1, one_modf=1, res=4294967301, x=4294967301] [L85] isnan_float(iptr) && !isnan_float(res) VAL [\read(iptr)=4294967298, iptr={3:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, one_modf=1, res=4294967301, x=4294967301] [L85] CALL, EXPR isnan_float(res) VAL [\old(x)=4294967301, one_modf=1] [L73] return x != x; VAL [\old(x)=4294967301, \result=0, one_modf=1, x=4294967301] [L85] RET, EXPR isnan_float(res) VAL [\read(iptr)=4294967298, iptr={3:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(res)=0, one_modf=1, res=4294967301, x=4294967301] [L85] isnan_float(iptr) && !isnan_float(res) VAL [\read(iptr)=4294967298, iptr={3:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(res)=0, one_modf=1, res=4294967301, x=4294967301] [L85] COND TRUE isnan_float(iptr) && !isnan_float(res) VAL [\read(iptr)=4294967298, iptr={3:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(res)=0, one_modf=1, res=4294967301, x=4294967301] [L86] __VERIFIER_error() VAL [iptr={3:0}, one_modf=1, res=4294967301, x=4294967301] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 134 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 253 SDtfs, 38 SDslu, 251 SDs, 0 SdLazy, 338 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 7096 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...