/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:32:43,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:32:43,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:32:43,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:32:43,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:32:43,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:32:43,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:32:43,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:32:43,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:32:43,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:32:43,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:32:43,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:32:43,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:32:43,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:32:43,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:32:43,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:32:43,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:32:43,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:32:43,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:32:43,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:32:43,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:32:43,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:32:43,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:32:43,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:32:43,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:32:43,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:32:43,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:32:43,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:32:43,361 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 18:32:43,374 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:32:43,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:32:43,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:32:43,376 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:32:43,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:32:43,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:32:43,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:32:43,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:32:43,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:32:43,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:32:43,378 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:32:43,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:32:43,379 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:32:43,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:32:43,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:32:43,380 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:32:43,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:32:43,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:32:43,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:32:43,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:32:43,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:32:43,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:32:43,381 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:32:43,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:32:43,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:32:43,665 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:32:43,666 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:32:43,667 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:32:43,667 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c [2020-08-22 18:32:43,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c781291e/75740357c6ab4b05b8638214b336dd78/FLAG21ba904cb [2020-08-22 18:32:44,125 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:32:44,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c [2020-08-22 18:32:44,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c781291e/75740357c6ab4b05b8638214b336dd78/FLAG21ba904cb [2020-08-22 18:32:44,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c781291e/75740357c6ab4b05b8638214b336dd78 [2020-08-22 18:32:44,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:32:44,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:32:44,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:32:44,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:32:44,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:32:44,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:32:44" (1/1) ... [2020-08-22 18:32:44,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53b7ec73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:44, skipping insertion in model container [2020-08-22 18:32:44,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:32:44" (1/1) ... [2020-08-22 18:32:44,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:32:44,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:32:44,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:32:44,700 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:32:44,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:32:44,751 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:32:44,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:44 WrapperNode [2020-08-22 18:32:44,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:32:44,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:32:44,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:32:44,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:32:44,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:44" (1/1) ... [2020-08-22 18:32:44,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:44" (1/1) ... [2020-08-22 18:32:44,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:44" (1/1) ... [2020-08-22 18:32:44,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:44" (1/1) ... [2020-08-22 18:32:44,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:44" (1/1) ... [2020-08-22 18:32:44,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:44" (1/1) ... [2020-08-22 18:32:44,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:44" (1/1) ... [2020-08-22 18:32:44,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:32:44,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:32:44,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:32:44,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:32:44,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:44" (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 18:32:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:32:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:32:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-08-22 18:32:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2020-08-22 18:32:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-08-22 18:32:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:32:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:32:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-08-22 18:32:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:32:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 18:32:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:32:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:32:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2020-08-22 18:32:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-08-22 18:32:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:32:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:32:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:32:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:32:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 18:32:45,304 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:32:45,304 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-22 18:32:45,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:32:45 BoogieIcfgContainer [2020-08-22 18:32:45,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:32:45,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:32:45,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:32:45,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:32:45,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:32:44" (1/3) ... [2020-08-22 18:32:45,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2c1e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:32:45, skipping insertion in model container [2020-08-22 18:32:45,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:44" (2/3) ... [2020-08-22 18:32:45,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2c1e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:32:45, skipping insertion in model container [2020-08-22 18:32:45,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:32:45" (3/3) ... [2020-08-22 18:32:45,331 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1252a.c [2020-08-22 18:32:45,341 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:32:45,350 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:32:45,363 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:32:45,383 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:32:45,383 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:32:45,383 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:32:45,383 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:32:45,383 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:32:45,383 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:32:45,383 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:32:45,384 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:32:45,401 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-08-22 18:32:45,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-08-22 18:32:45,412 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:32:45,413 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] [2020-08-22 18:32:45,413 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:32:45,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:32:45,418 INFO L82 PathProgramCache]: Analyzing trace with hash 2131665852, now seen corresponding path program 1 times [2020-08-22 18:32:45,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:32:45,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31998220] [2020-08-22 18:32:45,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:32:45,482 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:32:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:45,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:32:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:45,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 18:32:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:45,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:32:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:45,736 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 18:32:45,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31998220] [2020-08-22 18:32:45,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:32:45,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:32:45,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964361623] [2020-08-22 18:32:45,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:32:45,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:32:45,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:32:45,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:32:45,779 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 4 states. [2020-08-22 18:32:46,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:32:46,060 INFO L93 Difference]: Finished difference Result 164 states and 192 transitions. [2020-08-22 18:32:46,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 18:32:46,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-08-22 18:32:46,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:32:46,074 INFO L225 Difference]: With dead ends: 164 [2020-08-22 18:32:46,074 INFO L226 Difference]: Without dead ends: 81 [2020-08-22 18:32:46,079 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 18:32:46,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-08-22 18:32:46,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-08-22 18:32:46,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-08-22 18:32:46,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-08-22 18:32:46,138 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 34 [2020-08-22 18:32:46,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:32:46,139 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-08-22 18:32:46,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:32:46,139 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-08-22 18:32:46,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-08-22 18:32:46,143 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:32:46,143 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] [2020-08-22 18:32:46,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:32:46,144 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:32:46,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:32:46,145 INFO L82 PathProgramCache]: Analyzing trace with hash -630897281, now seen corresponding path program 1 times [2020-08-22 18:32:46,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:32:46,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2142219743] [2020-08-22 18:32:46,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:32:46,149 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:32:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:46,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:32:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:46,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 18:32:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:46,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:32:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:46,427 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 18:32:46,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2142219743] [2020-08-22 18:32:46,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:32:46,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:32:46,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903361342] [2020-08-22 18:32:46,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:32:46,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:32:46,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:32:46,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:32:46,446 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 6 states. [2020-08-22 18:32:46,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:32:46,674 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2020-08-22 18:32:46,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:32:46,675 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-08-22 18:32:46,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:32:46,679 INFO L225 Difference]: With dead ends: 117 [2020-08-22 18:32:46,679 INFO L226 Difference]: Without dead ends: 86 [2020-08-22 18:32:46,681 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 18:32:46,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-08-22 18:32:46,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2020-08-22 18:32:46,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-08-22 18:32:46,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-08-22 18:32:46,699 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 43 [2020-08-22 18:32:46,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:32:46,699 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-08-22 18:32:46,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:32:46,700 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-08-22 18:32:46,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 18:32:46,701 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:32:46,701 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] [2020-08-22 18:32:46,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:32:46,702 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:32:46,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:32:46,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1681903777, now seen corresponding path program 1 times [2020-08-22 18:32:46,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:32:46,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45313916] [2020-08-22 18:32:46,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:32:46,705 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:32:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:46,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:32:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:46,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 18:32:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:46,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:32:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:46,857 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 18:32:46,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45313916] [2020-08-22 18:32:46,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:32:46,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:32:46,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725261189] [2020-08-22 18:32:46,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:32:46,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:32:46,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:32:46,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:32:46,860 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 6 states. [2020-08-22 18:32:47,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:32:47,073 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2020-08-22 18:32:47,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:32:47,074 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-08-22 18:32:47,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:32:47,077 INFO L225 Difference]: With dead ends: 121 [2020-08-22 18:32:47,077 INFO L226 Difference]: Without dead ends: 90 [2020-08-22 18:32:47,078 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 18:32:47,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-08-22 18:32:47,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2020-08-22 18:32:47,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-08-22 18:32:47,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-08-22 18:32:47,092 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 46 [2020-08-22 18:32:47,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:32:47,093 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-08-22 18:32:47,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:32:47,093 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-08-22 18:32:47,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 18:32:47,095 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:32:47,095 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] [2020-08-22 18:32:47,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:32:47,095 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:32:47,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:32:47,096 INFO L82 PathProgramCache]: Analyzing trace with hash -969429089, now seen corresponding path program 1 times [2020-08-22 18:32:47,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:32:47,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [739236451] [2020-08-22 18:32:47,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:32:47,098 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:32:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:32:47,123 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:32:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:32:47,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:32:47,188 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:32:47,189 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:32:47,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:32:47,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:32:47 BoogieIcfgContainer [2020-08-22 18:32:47,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:32:47,219 INFO L168 Benchmark]: Toolchain (without parser) took 2730.25 ms. Allocated memory was 138.4 MB in the beginning and 235.4 MB in the end (delta: 97.0 MB). Free memory was 102.0 MB in the beginning and 123.1 MB in the end (delta: -21.1 MB). Peak memory consumption was 75.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:47,221 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 18:32:47,222 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.83 ms. Allocated memory is still 138.4 MB. Free memory was 101.6 MB in the beginning and 90.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:47,223 INFO L168 Benchmark]: Boogie Preprocessor took 118.05 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 90.8 MB in the beginning and 180.1 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:47,224 INFO L168 Benchmark]: RCFGBuilder took 438.50 ms. Allocated memory is still 202.9 MB. Free memory was 180.1 MB in the beginning and 157.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:47,230 INFO L168 Benchmark]: TraceAbstraction took 1904.96 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 156.5 MB in the beginning and 123.1 MB in the end (delta: 33.4 MB). Peak memory consumption was 65.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:47,240 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 263.83 ms. Allocated memory is still 138.4 MB. Free memory was 101.6 MB in the beginning and 90.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.05 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 90.8 MB in the beginning and 180.1 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.50 ms. Allocated memory is still 202.9 MB. Free memory was 180.1 MB in the beginning and 157.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1904.96 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 156.5 MB in the beginning and 123.1 MB in the end (delta: 33.4 MB). Peak memory consumption was 65.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 79]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 78, overapproximation of someUnaryFLOAToperation at line 72. Possible FailurePath: [L72] float x = -0.0f; [L73] float y = 0.0f; [L75] CALL, EXPR fmax_float(x, y) [L43] CALL, EXPR __fpclassify_float(x) [L20] __uint32_t w; [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (w) = gf_u.word [L28] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L30-L31] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L33-L34] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L36] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L39] return 0; [L43] RET, EXPR __fpclassify_float(x) [L43] COND TRUE __fpclassify_float(x) == 0 [L44] return y; [L75] RET, EXPR fmax_float(x, y) [L75] float res = fmax_float(x, y); [L78] EXPR res == 0.0f && __signbit_float(res) == 0 [L78] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L79] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, 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...