/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1252b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:25:36,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:25:36,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:25:36,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 20:25:36,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:25:36,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:25:36,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:25:36,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:25:36,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:25:36,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:25:36,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:25:36,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:25:36,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:25:36,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:25:36,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:25:36,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:25:36,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 20:25:36,538 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:25:36,559 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:25:36,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:25:36,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:25:36,564 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:25:36,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:25:36,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:25:36,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:25:36,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:25:36,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:25:36,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:25:36,567 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:25:36,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:25:36,568 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:25:36,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:25:36,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:25:36,569 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:25:36,570 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:25:36,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:25:36,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:25:36,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:25:36,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:25:36,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:25:36,571 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:25:36,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:25:37,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:25:37,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:25:37,007 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:25:37,008 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:25:37,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1252b.c [2020-10-23 20:25:37,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f257e4f30/6617b21a103e435890aaadc386a190ea/FLAG04d01d426 [2020-10-23 20:25:37,819 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:25:37,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1252b.c [2020-10-23 20:25:37,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f257e4f30/6617b21a103e435890aaadc386a190ea/FLAG04d01d426 [2020-10-23 20:25:37,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f257e4f30/6617b21a103e435890aaadc386a190ea [2020-10-23 20:25:37,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:25:37,854 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:25:37,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:25:37,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:25:37,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:25:37,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:25:37" (1/1) ... [2020-10-23 20:25:37,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c477360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:37, skipping insertion in model container [2020-10-23 20:25:37,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:25:37" (1/1) ... [2020-10-23 20:25:37,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:25:37,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:25:38,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:25:38,074 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:25:38,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:25:38,120 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:25:38,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:38 WrapperNode [2020-10-23 20:25:38,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:25:38,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:25:38,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:25:38,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:25:38,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:38" (1/1) ... [2020-10-23 20:25:38,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:38" (1/1) ... [2020-10-23 20:25:38,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:38" (1/1) ... [2020-10-23 20:25:38,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:38" (1/1) ... [2020-10-23 20:25:38,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:38" (1/1) ... [2020-10-23 20:25:38,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:38" (1/1) ... [2020-10-23 20:25:38,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:38" (1/1) ... [2020-10-23 20:25:38,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:25:38,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:25:38,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:25:38,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:25:38,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:38" (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 [2020-10-23 20:25:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:25:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:25:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:25:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-10-23 20:25:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2020-10-23 20:25:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-10-23 20:25:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:25:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:25:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:25:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:25:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:25:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-23 20:25:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-10-23 20:25:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-23 20:25:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:25:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:25:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2020-10-23 20:25:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-10-23 20:25:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:25:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:25:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:25:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:25:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-23 20:25:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:25:38,674 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:25:38,674 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-23 20:25:38,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:25:38 BoogieIcfgContainer [2020-10-23 20:25:38,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:25:38,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:25:38,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:25:38,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:25:38,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:25:37" (1/3) ... [2020-10-23 20:25:38,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7078613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:25:38, skipping insertion in model container [2020-10-23 20:25:38,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:38" (2/3) ... [2020-10-23 20:25:38,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7078613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:25:38, skipping insertion in model container [2020-10-23 20:25:38,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:25:38" (3/3) ... [2020-10-23 20:25:38,687 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1252b.c [2020-10-23 20:25:38,701 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:25:38,706 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:25:38,734 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:25:38,793 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:25:38,793 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:25:38,793 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:25:38,794 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:25:38,794 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:25:38,794 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:25:38,794 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:25:38,794 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:25:38,835 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states. [2020-10-23 20:25:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-23 20:25:38,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:38,848 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] [2020-10-23 20:25:38,849 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:38,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:38,855 INFO L82 PathProgramCache]: Analyzing trace with hash 580661350, now seen corresponding path program 1 times [2020-10-23 20:25:38,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:38,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046870523] [2020-10-23 20:25:38,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:38,941 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:39,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:25:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:39,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-23 20:25:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:39,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:25:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:39,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:25:39,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046870523] [2020-10-23 20:25:39,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:25:39,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:25:39,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768934788] [2020-10-23 20:25:39,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:25:39,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:25:39,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:25:39,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:25:39,210 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 4 states. [2020-10-23 20:25:39,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:25:39,536 INFO L93 Difference]: Finished difference Result 173 states and 202 transitions. [2020-10-23 20:25:39,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 20:25:39,538 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-23 20:25:39,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:25:39,549 INFO L225 Difference]: With dead ends: 173 [2020-10-23 20:25:39,549 INFO L226 Difference]: Without dead ends: 87 [2020-10-23 20:25:39,553 INFO L677 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 [2020-10-23 20:25:39,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-23 20:25:39,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-23 20:25:39,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-23 20:25:39,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2020-10-23 20:25:39,612 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 40 [2020-10-23 20:25:39,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:25:39,613 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2020-10-23 20:25:39,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:25:39,613 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2020-10-23 20:25:39,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-23 20:25:39,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:39,617 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] [2020-10-23 20:25:39,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:25:39,617 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:39,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:39,618 INFO L82 PathProgramCache]: Analyzing trace with hash 997701105, now seen corresponding path program 1 times [2020-10-23 20:25:39,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:39,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1955006860] [2020-10-23 20:25:39,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:39,623 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:39,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:25:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:39,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-23 20:25:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:39,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:25:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:39,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:25:39,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1955006860] [2020-10-23 20:25:39,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:25:39,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:25:39,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101306960] [2020-10-23 20:25:39,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:25:39,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:25:39,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:25:39,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:25:39,910 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 6 states. [2020-10-23 20:25:40,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:25:40,159 INFO L93 Difference]: Finished difference Result 124 states and 134 transitions. [2020-10-23 20:25:40,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 20:25:40,160 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-10-23 20:25:40,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:25:40,163 INFO L225 Difference]: With dead ends: 124 [2020-10-23 20:25:40,163 INFO L226 Difference]: Without dead ends: 92 [2020-10-23 20:25:40,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:25:40,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-23 20:25:40,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2020-10-23 20:25:40,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-23 20:25:40,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-10-23 20:25:40,182 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 49 [2020-10-23 20:25:40,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:25:40,183 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-10-23 20:25:40,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:25:40,183 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-10-23 20:25:40,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-23 20:25:40,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:40,185 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] [2020-10-23 20:25:40,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:25:40,186 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:40,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:40,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1233779619, now seen corresponding path program 1 times [2020-10-23 20:25:40,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:40,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351794003] [2020-10-23 20:25:40,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:40,193 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:40,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:25:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:40,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-23 20:25:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:40,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:25:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:40,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:25:40,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351794003] [2020-10-23 20:25:40,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:25:40,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:25:40,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505011898] [2020-10-23 20:25:40,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:25:40,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:25:40,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:25:40,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:25:40,329 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand 6 states. [2020-10-23 20:25:40,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:25:40,594 INFO L93 Difference]: Finished difference Result 128 states and 139 transitions. [2020-10-23 20:25:40,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 20:25:40,595 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-10-23 20:25:40,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:25:40,597 INFO L225 Difference]: With dead ends: 128 [2020-10-23 20:25:40,597 INFO L226 Difference]: Without dead ends: 96 [2020-10-23 20:25:40,598 INFO L677 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 [2020-10-23 20:25:40,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-23 20:25:40,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2020-10-23 20:25:40,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-23 20:25:40,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-10-23 20:25:40,614 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 52 [2020-10-23 20:25:40,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:25:40,615 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-10-23 20:25:40,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:25:40,615 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-10-23 20:25:40,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-23 20:25:40,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:40,617 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] [2020-10-23 20:25:40,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:25:40,618 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:40,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:40,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1845658467, now seen corresponding path program 1 times [2020-10-23 20:25:40,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:40,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1134631072] [2020-10-23 20:25:40,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:40,622 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:25:40,648 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:25:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:25:40,669 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:25:40,708 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:25:40,709 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:25:40,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:25:40,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:25:40 BoogieIcfgContainer [2020-10-23 20:25:40,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:25:40,739 INFO L168 Benchmark]: Toolchain (without parser) took 2887.94 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 133.2 MB in the beginning and 136.4 MB in the end (delta: -3.2 MB). Peak memory consumption was 29.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:40,741 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory was 108.1 MB in the beginning and 108.0 MB in the end (delta: 66.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:25:40,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.43 ms. Allocated memory is still 156.2 MB. Free memory was 132.5 MB in the beginning and 122.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:40,744 INFO L168 Benchmark]: Boogie Preprocessor took 44.47 ms. Allocated memory is still 156.2 MB. Free memory was 122.1 MB in the beginning and 120.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:40,746 INFO L168 Benchmark]: RCFGBuilder took 510.13 ms. Allocated memory is still 156.2 MB. Free memory was 120.3 MB in the beginning and 126.3 MB in the end (delta: -6.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:40,749 INFO L168 Benchmark]: TraceAbstraction took 2056.18 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 125.9 MB in the beginning and 136.4 MB in the end (delta: -10.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:40,762 INFO L339 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 125.8 MB. Free memory was 108.1 MB in the beginning and 108.0 MB in the end (delta: 66.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 265.43 ms. Allocated memory is still 156.2 MB. Free memory was 132.5 MB in the beginning and 122.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.47 ms. Allocated memory is still 156.2 MB. Free memory was 122.1 MB in the beginning and 120.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 510.13 ms. Allocated memory is still 156.2 MB. Free memory was 120.3 MB in the beginning and 126.3 MB in the end (delta: -6.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2056.18 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 125.9 MB in the beginning and 136.4 MB in the end (delta: -10.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someUnaryFLOAToperation at line 76. Possible FailurePath: [L75] float x = 0.0f; [L76] float y = -0.0f; [L77] CALL, EXPR fmax_float(x, y) [L46] CALL, EXPR __fpclassify_float(x) [L23] __uint32_t w; [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (x) [L28] EXPR gf_u.word [L28] (w) = gf_u.word [L31] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L33-L34] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L36-L37] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L39] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L42] return 0; [L46] RET, EXPR __fpclassify_float(x) [L46] COND TRUE __fpclassify_float(x) == 0 [L47] return y; [L77] RET, EXPR fmax_float(x, y) [L77] float res = fmax_float(x, y); [L80] EXPR res == 0.0f && __signbit_float(res) == 0 [L80] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L81] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_1252b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 285 SDtfs, 59 SDslu, 511 SDs, 0 SdLazy, 383 SolverSat, 35 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=97occurred 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...