/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_1232a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:32:38,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:32:38,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:32:38,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:32:38,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:32:38,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:32:38,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:32:38,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:32:38,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:32:38,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:32:38,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:32:38,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:32:38,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:32:38,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:32:38,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:32:38,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:32:38,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:32:38,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:32:38,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:32:38,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:32:38,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:32:38,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:32:38,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:32:38,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:32:38,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:32:38,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:32:38,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:32:38,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:32:38,587 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 18:32:38,603 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:32:38,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:32:38,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:32:38,605 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:32:38,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:32:38,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:32:38,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:32:38,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:32:38,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:32:38,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:32:38,606 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:32:38,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:32:38,607 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:32:38,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:32:38,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:32:38,607 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:32:38,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:32:38,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:32:38,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:32:38,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:32:38,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:32:38,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:32:38,608 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:32:38,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:32:38,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:32:38,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:32:38,916 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:32:38,916 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:32:38,917 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232a.c [2020-08-22 18:32:38,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2898060c/b939e454dc2e4b428049b4596569cdb6/FLAGe2ac663e6 [2020-08-22 18:32:39,411 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:32:39,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232a.c [2020-08-22 18:32:39,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2898060c/b939e454dc2e4b428049b4596569cdb6/FLAGe2ac663e6 [2020-08-22 18:32:39,797 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2898060c/b939e454dc2e4b428049b4596569cdb6 [2020-08-22 18:32:39,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:32:39,809 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:32:39,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:32:39,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:32:39,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:32:39,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:32:39" (1/1) ... [2020-08-22 18:32:39,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af40c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:39, skipping insertion in model container [2020-08-22 18:32:39,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:32:39" (1/1) ... [2020-08-22 18:32:39,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:32:39,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:32:40,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:32:40,030 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:32:40,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:32:40,169 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:32:40,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:40 WrapperNode [2020-08-22 18:32:40,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:32:40,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:32:40,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:32:40,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:32:40,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:40" (1/1) ... [2020-08-22 18:32:40,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:40" (1/1) ... [2020-08-22 18:32:40,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:40" (1/1) ... [2020-08-22 18:32:40,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:40" (1/1) ... [2020-08-22 18:32:40,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:40" (1/1) ... [2020-08-22 18:32:40,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:40" (1/1) ... [2020-08-22 18:32:40,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:40" (1/1) ... [2020-08-22 18:32:40,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:32:40,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:32:40,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:32:40,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:32:40,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:40" (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 18:32:40,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:32:40,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:32:40,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-08-22 18:32:40,280 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2020-08-22 18:32:40,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-08-22 18:32:40,280 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:32:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:32:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-08-22 18:32:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-08-22 18:32:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:32:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 18:32:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:32:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:32:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2020-08-22 18:32:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-08-22 18:32:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:32:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:32:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:32:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:32:40,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 18:32:40,686 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:32:40,687 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-22 18:32:40,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:32:40 BoogieIcfgContainer [2020-08-22 18:32:40,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:32:40,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:32:40,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:32:40,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:32:40,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:32:39" (1/3) ... [2020-08-22 18:32:40,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46071c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:32:40, skipping insertion in model container [2020-08-22 18:32:40,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:32:40" (2/3) ... [2020-08-22 18:32:40,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46071c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:32:40, skipping insertion in model container [2020-08-22 18:32:40,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:32:40" (3/3) ... [2020-08-22 18:32:40,699 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232a.c [2020-08-22 18:32:40,709 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:32:40,716 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:32:40,730 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:32:40,750 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:32:40,751 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:32:40,751 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:32:40,751 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:32:40,751 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:32:40,751 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:32:40,751 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:32:40,751 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:32:40,769 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-08-22 18:32:40,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-08-22 18:32:40,780 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:32:40,781 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 18:32:40,782 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:32:40,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:32:40,787 INFO L82 PathProgramCache]: Analyzing trace with hash -380814032, now seen corresponding path program 1 times [2020-08-22 18:32:40,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:32:40,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471989821] [2020-08-22 18:32:40,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:32:40,842 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:32:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:40,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:32:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:40,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 18:32:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:41,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:32:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:41,029 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 18:32:41,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471989821] [2020-08-22 18:32:41,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:32:41,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:32:41,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320711654] [2020-08-22 18:32:41,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:32:41,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:32:41,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:32:41,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:32:41,066 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 4 states. [2020-08-22 18:32:41,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:32:41,319 INFO L93 Difference]: Finished difference Result 164 states and 192 transitions. [2020-08-22 18:32:41,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 18:32:41,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-08-22 18:32:41,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:32:41,332 INFO L225 Difference]: With dead ends: 164 [2020-08-22 18:32:41,333 INFO L226 Difference]: Without dead ends: 81 [2020-08-22 18:32:41,338 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 18:32:41,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-08-22 18:32:41,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-08-22 18:32:41,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-08-22 18:32:41,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-08-22 18:32:41,393 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 34 [2020-08-22 18:32:41,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:32:41,394 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-08-22 18:32:41,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:32:41,394 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-08-22 18:32:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-08-22 18:32:41,397 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:32:41,397 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 18:32:41,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:32:41,398 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:32:41,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:32:41,399 INFO L82 PathProgramCache]: Analyzing trace with hash 133434162, now seen corresponding path program 1 times [2020-08-22 18:32:41,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:32:41,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449593213] [2020-08-22 18:32:41,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:32:41,402 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:32:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:41,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:32:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:41,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 18:32:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:41,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:32:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:41,646 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 18:32:41,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449593213] [2020-08-22 18:32:41,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:32:41,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:32:41,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101359147] [2020-08-22 18:32:41,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:32:41,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:32:41,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:32:41,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:32:41,649 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 6 states. [2020-08-22 18:32:41,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:32:41,861 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2020-08-22 18:32:41,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:32:41,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-08-22 18:32:41,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:32:41,866 INFO L225 Difference]: With dead ends: 117 [2020-08-22 18:32:41,866 INFO L226 Difference]: Without dead ends: 86 [2020-08-22 18:32:41,868 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 18:32:41,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-08-22 18:32:41,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2020-08-22 18:32:41,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-08-22 18:32:41,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-08-22 18:32:41,883 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 43 [2020-08-22 18:32:41,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:32:41,884 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-08-22 18:32:41,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:32:41,884 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-08-22 18:32:41,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 18:32:41,886 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:32:41,886 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 18:32:41,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:32:41,886 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:32:41,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:32:41,887 INFO L82 PathProgramCache]: Analyzing trace with hash 619089939, now seen corresponding path program 1 times [2020-08-22 18:32:41,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:32:41,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379474015] [2020-08-22 18:32:41,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:32:41,889 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:32:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:41,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:32:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:41,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 18:32:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:42,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:32:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:32:42,062 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 18:32:42,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379474015] [2020-08-22 18:32:42,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:32:42,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:32:42,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239890449] [2020-08-22 18:32:42,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:32:42,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:32:42,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:32:42,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:32:42,065 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 6 states. [2020-08-22 18:32:42,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:32:42,248 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2020-08-22 18:32:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:32:42,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-08-22 18:32:42,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:32:42,250 INFO L225 Difference]: With dead ends: 121 [2020-08-22 18:32:42,251 INFO L226 Difference]: Without dead ends: 90 [2020-08-22 18:32:42,251 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 18:32:42,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-08-22 18:32:42,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2020-08-22 18:32:42,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-08-22 18:32:42,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-08-22 18:32:42,263 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 46 [2020-08-22 18:32:42,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:32:42,264 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-08-22 18:32:42,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:32:42,264 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-08-22 18:32:42,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 18:32:42,265 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:32:42,266 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 18:32:42,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:32:42,266 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:32:42,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:32:42,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1331564627, now seen corresponding path program 1 times [2020-08-22 18:32:42,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:32:42,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519000688] [2020-08-22 18:32:42,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:32:42,269 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:32:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:32:42,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:32:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:32:42,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:32:42,351 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:32:42,351 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:32:42,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:32:42,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:32:42 BoogieIcfgContainer [2020-08-22 18:32:42,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:32:42,376 INFO L168 Benchmark]: Toolchain (without parser) took 2566.56 ms. Allocated memory was 147.3 MB in the beginning and 233.8 MB in the end (delta: 86.5 MB). Free memory was 104.7 MB in the beginning and 115.9 MB in the end (delta: -11.1 MB). Peak memory consumption was 75.4 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:42,379 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 18:32:42,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.53 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 104.5 MB in the beginning and 183.8 MB in the end (delta: -79.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:42,382 INFO L168 Benchmark]: Boogie Preprocessor took 41.90 ms. Allocated memory is still 205.0 MB. Free memory was 183.8 MB in the beginning and 181.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:42,383 INFO L168 Benchmark]: RCFGBuilder took 478.90 ms. Allocated memory is still 205.0 MB. Free memory was 181.5 MB in the beginning and 158.1 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:42,390 INFO L168 Benchmark]: TraceAbstraction took 1680.61 ms. Allocated memory was 205.0 MB in the beginning and 233.8 MB in the end (delta: 28.8 MB). Free memory was 157.4 MB in the beginning and 115.9 MB in the end (delta: 41.6 MB). Peak memory consumption was 70.4 MB. Max. memory is 7.1 GB. [2020-08-22 18:32:42,400 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 360.53 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 104.5 MB in the beginning and 183.8 MB in the end (delta: -79.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.90 ms. Allocated memory is still 205.0 MB. Free memory was 183.8 MB in the beginning and 181.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 478.90 ms. Allocated memory is still 205.0 MB. Free memory was 181.5 MB in the beginning and 158.1 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1680.61 ms. Allocated memory was 205.0 MB in the beginning and 233.8 MB in the end (delta: 28.8 MB). Free memory was 157.4 MB in the beginning and 115.9 MB in the end (delta: 41.6 MB). Peak memory consumption was 70.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 70]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 69, overapproximation of someUnaryFLOAToperation at line 65. Possible FailurePath: [L64] float x = 0.0f; [L65] float y = -0.0f; [L66] CALL, EXPR fmin_float(x, y) [L36] CALL, EXPR __fpclassify_float(x) [L13] __uint32_t w; [L16] ieee_float_shape_type gf_u; [L17] gf_u.value = (x) [L18] EXPR gf_u.word [L18] (w) = gf_u.word [L21] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L23-L24] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L26-L27] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L29] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L32] return 0; [L36] RET, EXPR __fpclassify_float(x) [L36] COND TRUE __fpclassify_float(x) == 0 [L37] return y; [L66] RET, EXPR fmin_float(x, y) [L66] float res = fmin_float(x, y); [L69] EXPR res == -0.0f && __signbit_float(res) == 1 [L69] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L70] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, 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, 0.3s 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=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...