/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/double_req_bl_1232a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:31:41,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:31:41,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:31:41,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 18:31:41,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:31:41,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:31:41,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:31:41,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:31:41,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:31:41,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:31:41,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:31:41,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:31:41,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:31:41,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:31:41,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:31:41,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:31:41,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:31:41,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:31:41,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:31:41,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:31:41,855 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:31:41,865 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:31:41,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:31:41,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:31:41,866 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:31:41,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:31:41,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:31:41,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:31:41,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:31:41,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:31:41,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:31:41,868 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:31:41,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:31:41,868 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:31:41,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:31:41,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:31:41,869 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:31:41,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:31:41,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:31:41,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:31:41,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:31:41,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:31:41,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:31:41,870 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:31:42,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:31:42,176 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:31:42,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:31:42,181 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:31:42,182 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:31:42,183 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232a.c [2020-08-22 18:31:42,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2087544e0/1d717f207eb848139d9e0223ed1012f8/FLAGf35b9856d [2020-08-22 18:31:42,703 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:31:42,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1232a.c [2020-08-22 18:31:42,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2087544e0/1d717f207eb848139d9e0223ed1012f8/FLAGf35b9856d [2020-08-22 18:31:43,081 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2087544e0/1d717f207eb848139d9e0223ed1012f8 [2020-08-22 18:31:43,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:31:43,093 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:31:43,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:31:43,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:31:43,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:31:43,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:31:43" (1/1) ... [2020-08-22 18:31:43,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41182fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:43, skipping insertion in model container [2020-08-22 18:31:43,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:31:43" (1/1) ... [2020-08-22 18:31:43,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:31:43,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:31:43,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:31:43,332 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:31:43,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:31:43,482 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:31:43,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:43 WrapperNode [2020-08-22 18:31:43,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:31:43,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:31:43,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:31:43,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:31:43,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:43" (1/1) ... [2020-08-22 18:31:43,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:43" (1/1) ... [2020-08-22 18:31:43,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:43" (1/1) ... [2020-08-22 18:31:43,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:43" (1/1) ... [2020-08-22 18:31:43,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:43" (1/1) ... [2020-08-22 18:31:43,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:43" (1/1) ... [2020-08-22 18:31:43,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:43" (1/1) ... [2020-08-22 18:31:43,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:31:43,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:31:43,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:31:43,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:31:43,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:31:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:31:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:31:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-22 18:31:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-08-22 18:31:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-08-22 18:31:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-08-22 18:31:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:31:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:31:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 18:31:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-22 18:31:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-08-22 18:31:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:31:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 18:31:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:31:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:31:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-08-22 18:31:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-08-22 18:31:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:31:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:31:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:31:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 18:31:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:31:43,981 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:31:43,982 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-22 18:31:43,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:31:43 BoogieIcfgContainer [2020-08-22 18:31:43,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:31:43,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:31:43,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:31:43,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:31:43,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:31:43" (1/3) ... [2020-08-22 18:31:44,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5a307c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:31:43, skipping insertion in model container [2020-08-22 18:31:44,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:43" (2/3) ... [2020-08-22 18:31:44,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5a307c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:31:44, skipping insertion in model container [2020-08-22 18:31:44,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:31:43" (3/3) ... [2020-08-22 18:31:44,007 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2020-08-22 18:31:44,017 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:31:44,023 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:31:44,037 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:31:44,059 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:31:44,060 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:31:44,060 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:31:44,060 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:31:44,060 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:31:44,060 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:31:44,060 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:31:44,060 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:31:44,078 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-08-22 18:31:44,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-08-22 18:31:44,091 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:44,092 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] [2020-08-22 18:31:44,092 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:44,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:44,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1987914920, now seen corresponding path program 1 times [2020-08-22 18:31:44,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:44,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085182666] [2020-08-22 18:31:44,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:44,160 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:44,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:31:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:44,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 18:31:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:44,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:31:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:44,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:31:44,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085182666] [2020-08-22 18:31:44,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:31:44,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:31:44,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170200388] [2020-08-22 18:31:44,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:31:44,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:31:44,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:31:44,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:31:44,445 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 4 states. [2020-08-22 18:31:44,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:31:44,731 INFO L93 Difference]: Finished difference Result 176 states and 204 transitions. [2020-08-22 18:31:44,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 18:31:44,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-08-22 18:31:44,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:31:44,745 INFO L225 Difference]: With dead ends: 176 [2020-08-22 18:31:44,746 INFO L226 Difference]: Without dead ends: 87 [2020-08-22 18:31:44,751 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 [2020-08-22 18:31:44,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-08-22 18:31:44,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-08-22 18:31:44,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-08-22 18:31:44,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2020-08-22 18:31:44,815 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 35 [2020-08-22 18:31:44,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:31:44,815 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2020-08-22 18:31:44,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:31:44,816 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2020-08-22 18:31:44,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-08-22 18:31:44,821 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:44,822 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] [2020-08-22 18:31:44,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:31:44,823 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:44,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:44,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1530124146, now seen corresponding path program 1 times [2020-08-22 18:31:44,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:44,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932175476] [2020-08-22 18:31:44,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:44,828 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:44,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:31:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:44,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 18:31:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:45,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:31:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:45,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:31:45,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932175476] [2020-08-22 18:31:45,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:31:45,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:31:45,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475174913] [2020-08-22 18:31:45,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:31:45,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:31:45,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:31:45,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:31:45,094 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 6 states. [2020-08-22 18:31:45,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:31:45,315 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2020-08-22 18:31:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:31:45,315 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-08-22 18:31:45,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:31:45,319 INFO L225 Difference]: With dead ends: 123 [2020-08-22 18:31:45,320 INFO L226 Difference]: Without dead ends: 92 [2020-08-22 18:31:45,321 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 [2020-08-22 18:31:45,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-08-22 18:31:45,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2020-08-22 18:31:45,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-08-22 18:31:45,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-08-22 18:31:45,339 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 49 [2020-08-22 18:31:45,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:31:45,340 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-08-22 18:31:45,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:31:45,340 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-08-22 18:31:45,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 18:31:45,342 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:45,342 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] [2020-08-22 18:31:45,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:31:45,343 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:45,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:45,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1091693362, now seen corresponding path program 1 times [2020-08-22 18:31:45,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:45,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298774025] [2020-08-22 18:31:45,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:45,346 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:45,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:31:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:45,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 18:31:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:45,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:31:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:45,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:31:45,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298774025] [2020-08-22 18:31:45,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:31:45,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:31:45,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779844519] [2020-08-22 18:31:45,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:31:45,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:31:45,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:31:45,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:31:45,487 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand 6 states. [2020-08-22 18:31:45,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:31:45,679 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2020-08-22 18:31:45,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:31:45,679 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-08-22 18:31:45,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:31:45,681 INFO L225 Difference]: With dead ends: 127 [2020-08-22 18:31:45,681 INFO L226 Difference]: Without dead ends: 96 [2020-08-22 18:31:45,682 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 [2020-08-22 18:31:45,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-08-22 18:31:45,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2020-08-22 18:31:45,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-08-22 18:31:45,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-08-22 18:31:45,696 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 52 [2020-08-22 18:31:45,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:31:45,697 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-08-22 18:31:45,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:31:45,697 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-08-22 18:31:45,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 18:31:45,699 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:45,699 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] [2020-08-22 18:31:45,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:31:45,700 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:45,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:45,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1804168050, now seen corresponding path program 1 times [2020-08-22 18:31:45,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:45,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832808724] [2020-08-22 18:31:45,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:45,702 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:31:45,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:31:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:31:45,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:31:45,806 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:31:45,806 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:31:45,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:31:45,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:31:45 BoogieIcfgContainer [2020-08-22 18:31:45,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:31:45,835 INFO L168 Benchmark]: Toolchain (without parser) took 2740.25 ms. Allocated memory was 137.4 MB in the beginning and 227.0 MB in the end (delta: 89.7 MB). Free memory was 97.9 MB in the beginning and 106.3 MB in the end (delta: -8.3 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:45,837 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 116.8 MB in the beginning and 116.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 18:31:45,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.40 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 97.7 MB in the beginning and 178.5 MB in the end (delta: -80.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:45,840 INFO L168 Benchmark]: Boogie Preprocessor took 47.07 ms. Allocated memory is still 199.8 MB. Free memory was 178.5 MB in the beginning and 176.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:45,841 INFO L168 Benchmark]: RCFGBuilder took 459.81 ms. Allocated memory is still 199.8 MB. Free memory was 176.0 MB in the beginning and 150.6 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:45,846 INFO L168 Benchmark]: TraceAbstraction took 1836.12 ms. Allocated memory was 199.8 MB in the beginning and 227.0 MB in the end (delta: 27.3 MB). Free memory was 150.6 MB in the beginning and 106.3 MB in the end (delta: 44.3 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:45,856 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 116.8 MB in the beginning and 116.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 388.40 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 97.7 MB in the beginning and 178.5 MB in the end (delta: -80.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.07 ms. Allocated memory is still 199.8 MB. Free memory was 178.5 MB in the beginning and 176.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 459.81 ms. Allocated memory is still 199.8 MB. Free memory was 176.0 MB in the beginning and 150.6 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1836.12 ms. Allocated memory was 199.8 MB in the beginning and 227.0 MB in the end (delta: 27.3 MB). Free memory was 150.6 MB in the beginning and 106.3 MB in the end (delta: 44.3 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someUnaryDOUBLEoperation at line 75. Possible FailurePath: [L74] double x = 0.0; [L75] double y = -0.0; [L76] CALL, EXPR fmin_double(x, y) [L46] CALL, EXPR __fpclassify_double(x) [L19] __uint32_t msw, lsw; [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (msw) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (lsw) = ew_u.parts.lsw [L28-L29] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L31-L32] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L34-L35] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L38-L39] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L42] return 0; [L46] RET, EXPR __fpclassify_double(x) [L46] COND TRUE __fpclassify_double(x) == 0 [L47] return y; [L76] RET, EXPR fmin_double(x, y) [L76] double res = fmin_double(x, y); [L79] EXPR res == -0.0 && __signbit_double(res) == 1 [L79] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L80] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 99 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: 285 SDtfs, 59 SDslu, 523 SDs, 0 SdLazy, 377 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred 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...